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Ameziane Y, Imiolczyk JP, Steinbeck J, Warnhoff M, Moroder P, Scheibel M. [Reverse Shoulder Arthroplasty - Current Concepts]. Z Orthop Unfall 2024; 162:211-228. [PMID: 38518806 DOI: 10.1055/a-2105-3147] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/24/2024]
Abstract
Due to first promising long term outcome data, reverse shoulder arthroplasty experienced an immense increase of usage during the past decade. Moreover, the initial Grammont concept has constantly been refined and adapted to current scientific findings. Therefore, clinical and radiological problems like scapular notching and postoperative instability were constantly addressed but do still remain an area of concern.This article summarises current concepts in reverse shoulder arthroplasty and gives an overview of actual indications like cuff tear arthropathy, severe osteoarthritis, proximal humerus fractures, tumours, fracture sequelae as well as revision surgery and their corresponding clinical and radiological results.
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Moroder P, Akguen D, Paksoy A, Gebauer H, Barthod-Tonnot N, Lupetti M, Markova V, Zettinig O, Parada S, Karpinski K. The Global Track Concept for Assessment of Engaging Hill-Sachs Defects in Anterior Shoulder Instability. Am J Sports Med 2024; 52:1292-1298. [PMID: 38506922 DOI: 10.1177/03635465241232089] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 03/21/2024]
Abstract
BACKGROUND The glenoid track concept is used to determine preoperatively whether a Hill-Sachs defect is engaging or not. Currently, the glenoid track concept relies on measurements of bony structures as well as on the confines and elasticity of the rotator cuff as a reference point, which varies extensively among individuals and therefore limits the reliability and accuracy of this concept. PURPOSE To evaluate the reliability of the global track concept, which determines the angular distance of the Hill-Sachs defect from the center of the articular surface of the humeral head as a new reference point with the help of an automated image analysis software and 3-dimensional analysis of the humeral head. STUDY DESIGN Controlled laboratory study. METHODS Computed tomography scans of 100 patients treated for anterior shoulder instability with different sizes of Hill-Sachs defects were evaluated manually by 2 orthopaedic surgeons independently using the software OsiriX as well as automatically by using a dedicated prototype software (ImFusion). Obtained manual and automated measurements included the Hill-Sachs length, Hill-Sachs width, and Hill-Sachs depth of the defect; the Hill-Sachs interval (HSI); and the glenoid width for the glenoid track concept, as well as the angular distance of the Hill-Sachs defect from the center of the articular surface of the humeral head (global track concept). The reliability of the different measurement techniques was compared by calculating intraclass correlation coefficients (ICCs). RESULTS There was a significant difference for all obtained parameters comparing manual and automatic measurements. For manually obtained parameters, measurements referring to bony boundaries (glenoid width, Hill-Sachs length, and Hill-Sachs width) showed good to excellent agreement (ICC, 0.86, 0.82, and 0.62, respectively), while measurements referring to soft tissue boundaries (HSI and glenoid track; ICC, 0.56 and 0.53, respectively) or not directly identifiable reference points (center of articular surface and global track) only showed fair reliability (ICC middle excursion, 0.42). When the same parameters were measured with the help of an automated software, good reliability for the glenoid track concept and excellent reliability for the global track concept in the middle excursion were achieved. CONCLUSION The present study showed that the more complex global track measurements of humeral defects are more reliable than the current standard HSI and glenoid track measurements. However, this is only true when automated software is used to perform the measurements. CLINICAL RELEVANCE Future studies using the new proposed method in combination with an automated software need to be conducted to determine critical threshold values for defects prone to engagement.
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Affiliation(s)
| | - Doruk Akguen
- Charite Universitätsmedizin Berlin, Berlin, Germany
| | - Alp Paksoy
- Charite Universitätsmedizin Berlin, Berlin, Germany
| | | | | | | | | | | | - Stephen Parada
- Medical College of Georgia, Augusta University, Augusta, Georgia, USA
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Akgün D, Gebauer H, Paksoy A, Schafer F, Herbst E, Karczewski D, Pastor MF, Moroder P. Differences in Osseous Shoulder Morphology, Scapulothoracic Orientation, and Muscle Volume in Patients With Constitutional Static Posterior Shoulder Instability (Type C1) Compared With Healthy Controls. Am J Sports Med 2024; 52:1299-1307. [PMID: 38488401 PMCID: PMC10986147 DOI: 10.1177/03635465241233706] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 04/04/2024]
Abstract
BACKGROUND Constitutional static posterior humeral decentering (type C1 according to ABC Classification) has been recognized as a pre-osteoarthritic deformity that may lead to early-onset posterior decentering osteoarthritis at a young age. Therefore, it is important to identify possible associations of this pathologic shoulder condition to find more effective treatment options. PURPOSE To perform a comprehensive analysis of all parameters reported to be associated with a C1 shoulder-including the osseous shoulder morphology, scapulothoracic orientation, and the muscle volume of the shoulder girdle in a single patient cohort. STUDY DESIGN Cross-sectional study; Level of evidence, 3. METHODS A retrospective, comparative study was conducted analyzing 17 C1 shoulders in 10 patients who underwent magnetic resonance imaging (MRI) with the complete depiction of the trunk from the base of the skull to the iliac crest, including both humeri. The mean age of the patients was 33.5 years, and all patients were men. To measure and compare the osseous shoulder morphology (glenoid version, glenoid offset, humeral torsion, anterior acromial coverage, posterior acromial coverage, posterior acromial height, and posterior acromial tilt) and scapulothoracic orientation (scapular protraction, scapular internal rotation, scapular upward rotation, scapular translation, scapular tilt, and thoracic kyphosis), these patients were matched 1 to 4 according their age, sex, and affected side with shoulder-healthy patients who had received positron emission tomography (PET)-computed tomography. To measure and compare the muscle volume of the shoulder girdle (subscapularis, infraspinatus/teres minor, supraspinatus, trapezius, deltoid, latissimus dorsi/teres major, pectoralis major, and pectoralis minor), patients were matched 1 to 2 with patients who had received PET-MRI. Patients with visible pathologies of the upper extremities were excluded. RESULTS The C1 group had a significantly higher glenoid retroversion, increased anterior glenoid offset, reduced humeral retrotorsion, increased anterior acromial coverage, reduced posterior acromial coverage, increased posterior acromial height, and increased posterior acromial tilt compared with controls (P < .05). Decreased humeral retrotorsion showed significant correlation with higher glenoid retroversion (r = -0.742; P < .001) and higher anterior glenoid offset (r = -0.757; P < .001). Significant differences were found regarding less scapular upward rotation, less scapular tilt, and less thoracic kyphosis in the C1 group (P < .05). The muscle volume of the trapezius and deltoid was significantly higher in the C1 group (P < .05). CONCLUSION Patients with C1 shoulders differ from healthy controls regarding osseous scapular and humeral morphology, scapulothoracic orientation, and shoulder girdle muscle distribution. These differences may be crucial in understanding the delicate balance of glenohumeral centering.
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Affiliation(s)
- Doruk Akgün
- Center for Musculoskeletal Surgery, Charité-Universitätsmedizin Berlin, Berlin, Germany
| | - Henry Gebauer
- Center for Musculoskeletal Surgery, Charité-Universitätsmedizin Berlin, Berlin, Germany
| | - Alp Paksoy
- Center for Musculoskeletal Surgery, Charité-Universitätsmedizin Berlin, Berlin, Germany
| | - Frederik Schafer
- Center for Musculoskeletal Surgery, Charité-Universitätsmedizin Berlin, Berlin, Germany
| | | | - Daniel Karczewski
- Center for Musculoskeletal Surgery, Charité-Universitätsmedizin Berlin, Berlin, Germany
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Paksoy A, Akgün D, Gebauer H, Karczewski D, Lacheta L, Tokish JM, Chamberlain A, Moroder P. The latissimus dorsi creates a dynamic track for the inferior angle of the scapula during arm abduction in humans. J Orthop Surg Res 2024; 19:193. [PMID: 38504340 PMCID: PMC10953177 DOI: 10.1186/s13018-024-04659-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/17/2024] [Accepted: 03/02/2024] [Indexed: 03/21/2024] Open
Abstract
BACKGROUND The importance of several scapulothoracic muscles, including trapezius and serratus anterior, in maintaining physiological scapula kinematics has been highlighted in the past. However, the relationship between the scapula and the latissimus dorsi muscle remains unclear. Our clinical surgical observation is that the latissimus dorsi does not directly attach but rather runs superficial to the inferior angle of the scapula. Based on this observation, we hypothesise that the latissimus dorsi creates a dynamic track on which the scapula glides under the muscle belly during elevation of the arm, creating the latissimus-scapula overlap (LSO). METHODS All consecutive patients who had a whole-body computed tomography scan (CT) in case of polytrauma evaluation between 2018 and 2021, with complete depiction of the scapula and latissimus dorsi muscle, were analysed. 150 shoulders in 90 patients with arms up were matched according to their age (within five years), gender, and affected side with 150 shoulders in 88 patients with arms down. Patients with pathologies of the upper extremities or thorax that potentially could alter LSO measurements were excluded. LSO was calculated as a ratio of the measured area of the latissimus dorsi projection on the scapula and the total scapula area. RESULTS The mean age of the 178 patients (48 females; 13 males) was 60 years. The arms-up group showed a significantly higher LSO than the arms-down group (19.9 ± 6.3% vs. 2.7 ± 2.2%; p < 0.0001). In the arms-up group, approximately one fifth of the scapula was overlapped inferiorly by the muscle belly of the latissimus dorsi, contrary to the almost non-existing LSO in the arms-down group. CONCLUSION With arms up, humans show a significantly higher LSO in comparison to arms down indicating that the latissimus dorsi indeed creates a dynamic track on which the scapula is forced to travel during abduction of the arm. This finding of increased LSO during the elevation of the arm warrants further consideration of the role of the latissimus dorsi in scapula kinematics and potentially scapular dyskinesis. LEVEL OF EVIDENCE Level two diagnostic study.
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Affiliation(s)
- Alp Paksoy
- Center for Musculoskeletal Surgery, Charité University Hospital, Augustenburger Pl. 1, 13353, Berlin, Germany.
| | - Doruk Akgün
- Center for Musculoskeletal Surgery, Charité University Hospital, Augustenburger Pl. 1, 13353, Berlin, Germany
| | - Henry Gebauer
- Center for Musculoskeletal Surgery, Charité University Hospital, Augustenburger Pl. 1, 13353, Berlin, Germany
| | - Daniel Karczewski
- Center for Musculoskeletal Surgery, Charité University Hospital, Augustenburger Pl. 1, 13353, Berlin, Germany
| | - Lucca Lacheta
- University Hospital rechts der Isar, Technical University Munich, German, Germany
| | | | - Aaron Chamberlain
- Center for Advanced Medicine Orthopedic Surgery Center, St. Louis, MO, USA
- Washington University and Barnes-Jewish Orthopedic Center, Chesterfield, MO, USA
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Freislederer F, Moroder P, Audigé L, Schneller T, Ameziane Y, Trefzer R, Imiolczyk JP, Scheibel M. Analysis of three different reverse shoulder arthroplasty designs for cuff tear arthropathy - the combination of lateralization and distalization provides best mobility. BMC Musculoskelet Disord 2024; 25:204. [PMID: 38454432 PMCID: PMC10918945 DOI: 10.1186/s12891-024-07312-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/16/2023] [Accepted: 02/26/2024] [Indexed: 03/09/2024] Open
Abstract
BACKGROUND The two major reverse shoulder arthroplasty (RSA) designs are the Grammont design and the lateralized design. Even if the lateralized design is biomechanically favored, the classic Grammont prosthesis continues to be used. Functional and subjective patient scores as well as implant survival described in the literature so far are comparable to the lateralized design. A pure comparison of how the RSA design influences outcome in patients has not yet been determined. The aim of this study was a comparison focused on patients with cuff tear arthropathy (CTA). METHODS We analyzed registry data from 696 CTA patients prospectively collected between 2012 and 2020 in two specialized orthopedic centers up to 2 years post-RSA with the same follow-up time points (6,12 24 months). Complete teres minor tears were excluded. Three groups were defined: group 1 (inlay, 155° humeral inclination, 36 + 2 mm eccentric glenosphere (n = 50)), group 2 (inlay, 135° humeral inclination, 36 + 4 mm lateralized glenosphere (n = 141)) and group 3 (onlay, 145° humeral inclination, + 3 mm lateralized base plate, 36 + 2 mm eccentric glenosphere (n = 35)) We compared group differences in clinical outcomes (e.g., active and passive range of motion (ROM), abduction strength, Constant-Murley score (CS)), radiographic evaluations of prosthetic position, scapular anatomy and complications using mixed models adjusted for age and sex. RESULTS The final analysis included 226 patients. The overall adjusted p-value of the CS for all time-points showed no significant difference (p = 0.466). Flexion of group 3 (mean, 155° (SD 13)) was higher than flexion of group 1 (mean, 142° (SD 18) and 2 (mean, 132° (SD 18) (p < 0.001). Values for abduction of group 3 (mean, 145° (SD 23)) were bigger than those of group 1 (mean, 130° (SD 22)) and group 2 (mean, 118° (SD 25)) (p < 0.001). Mean external rotation for group 3 (mean, 41° (SD 23)) and group 2 (mean, 38° (SD 17)) was larger than external rotation of group 1 (mean, 24° (SD 16)) (p < 0.001); a greater proportion of group 2 (78%) and 3 (69%) patients reached L3 level on internal rotation compared to group 1 (44%) (p = 0.003). Prosthesis position measurements were similar, but group 3 had significantly less scapular notching (14%) versus 24% (group 2) and 50% (group 1) (p = 0.001). CONCLUSIONS Outcome scores of different RSA designs for CTA revealed comparable results. However, CTA patients with a lateralized and distalized RSA configuration were associated with achieving better flexion and abduction with less scapular notching. A better rotation was associated with either of the lateralized RSA designs in comparison with the classic Grammont prosthesis. LEVEL OF EVIDENCE Therapeutic study, Level III.
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Affiliation(s)
- Florian Freislederer
- Schulthess Clinic, Department of Shoulder and Elbow Surgery, Zurich, Switzerland.
| | - Philipp Moroder
- Schulthess Clinic, Department of Shoulder and Elbow Surgery, Zurich, Switzerland
| | - Laurent Audigé
- Department of Research and Development, Upper Extremities, Schulthess Clinic, Zurich, Switzerland
- Surgical Outcome Research Center, Department of Clinical Research, University Hospital Basel and University of Basel, Basel, Switzerland
| | - Tim Schneller
- Department of Research and Development, Upper Extremities, Schulthess Clinic, Zurich, Switzerland
| | - Yacine Ameziane
- Schulthess Clinic, Department of Shoulder and Elbow Surgery, Zurich, Switzerland
| | - Raphael Trefzer
- Schulthess Clinic, Department of Shoulder and Elbow Surgery, Zurich, Switzerland
| | | | - Markus Scheibel
- Schulthess Clinic, Department of Shoulder and Elbow Surgery, Zurich, Switzerland
- Center for Musculoskeletal Surgery, Charité-Universitaetsmedizin, Berlin, Germany
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Baum C, Audigé L, Stojanov T, Müller SA, Candrian C, Müller AM, Rosso C, Fankhauser L, Willscheid G, Moroder P, Akgün D, Danzinger V, Gebauer H, Imiolczyk JP, Karpinski K, Lacheta L, Minkus M, Paksoy A, Samaniego E, Thiele K, Weiss I, Suter T, Müller-Lebschi J, Mueller S, Saner M, Haag-Schumacher C, Tamborrini-Schütz G, Trong MLD, Buitrago-Tellez C, Hasler J, Riede U, Weber S, Moor B, Biner M, Fournier S, Gallusser N, Marietan D, Pawlak S, Spormann C, Hansen B, Mamisch N, Durchholz H, Bräm J, Cunningham G, Kourhani A, Ossipow S, Simao P, Lädermann A, Egli R, Erdbrink S, Flückiger R, Lombardo P, Pinworasarn T, Scacchi P, Weihs J, Zumstein M, Flury M, Berther R, Ehrmann C, Hübscher L, Schwappach D, Eid K, Bensler S, Fritz Y, Grünberger N, Kriechling P, Langthaler D, Niehaus R, Nobs R, Benninger E, de Groot Q, Doert A, Ebert S, Grimm P, Mottier F, Pisan M, Schätz J, Schwank A, Wiedenbach J, Scheibel M, Audigé L, Bellmann F, Brune D, de Jong M, Diermayr S, Endell D, Etter M, Freislederer F, Gkikopoulos N, Glanzmann M, Grobet C, Jung C, Moro F, Moroder P, Ringer R, Schätz J, Schwyzer HK, Weber B, Wehrli M, Wirth B, Nötzli M, Franz A, Oswald J, Steiger B, Ameziane Y, Child C, Spagna G, Candrian C, Del Grande F, Feltri P, Filardo G, Marbach F, Schönweger F, Jost B, Badulescu M, Lüscher S, Napieralski F, Öhrström L, Olach M, Rechsteiner J, Scheler J, Spross C, Zdravkovic V, Zumstein MA, Chlasta A, Gerber K, Hayoz A, Müller-Lebschi J, Schuster F, Wieser K, Borbas P, Bouaicha S, Camenzind R, Catanzaro S, Gerber C, Grubhofer F, Hasler A, Hochreiter B, Marcus R, Selman F, Sutter R, Wyss S, Appenzeller-Herzog C, Aghlmandi S, Ahlborn I, Baum C, Eckers F, Grezda K, Hatz S, Hunziker S, Stojanov T, Taha M, Tamborrini-Schütz G, Mueller AM. Functional and Radiologic Outcomes of Degenerative Versus Traumatic Full-Thickness Rotator Cuff Tears Involving the Supraspinatus Tendon. Am J Sports Med 2024; 52:441-450. [PMID: 38259113 PMCID: PMC10838469 DOI: 10.1177/03635465231219253] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/16/2023] [Accepted: 10/02/2023] [Indexed: 01/24/2024]
Abstract
BACKGROUND Arthroscopic rotator cuff repair (ARCR) is among the most commonly performed orthopaedic procedures. Several factors-including age, sex, and tear severity-have been identified as predictors for outcome after repair. The influence of the tear etiology on functional and structural outcome remains controversial. PURPOSE To investigate the influence of tear etiology (degenerative vs traumatic) on functional and structural outcomes in patients with supraspinatus tendon tears. STUDY DESIGN Cohort study; Level of evidence, 2. METHODS Patients undergoing ARCR from 19 centers were prospectively enrolled between June 2020 and November 2021. Full-thickness, nonmassive tears involving the supraspinatus tendon were included. Tears were classified as degenerative (chronic shoulder pain, no history of trauma) or traumatic (acute, traumatic onset, no previous shoulder pain). Range of motion, strength, the Subjective Shoulder Value, the Oxford Shoulder Score (OSS), and the Constant-Murley Score (CMS) were assessed before (baseline) and 6 and 12 months after ARCR. The Subjective Shoulder Value and the OSS were also determined at the 24-month follow-up. Repair integrity after 12 months was documented, as well as additional surgeries up to the 24-month follow-up. Tear groups were compared using mixed models adjusted for potential confounding effects. RESULTS From a cohort of 973 consecutive patients, 421 patients (degenerative tear, n = 230; traumatic tear, n = 191) met the inclusion criteria. The traumatic tear group had lower mean baseline OSS and CMS scores but significantly greater score changes 12 months after ARCR (OSS, 18 [SD, 8]; CMS, 34 [SD,18] vs degenerative: OSS, 15 [SD, 8]; CMS, 22 [SD, 15]) (P < .001) and significantly higher 12-month overall scores (OSS, 44 [SD, 5]; CMS, 79 [SD, 9] vs degenerative: OSS, 42 [SD, 7]; CMS, 76 [SD, 12]) (P≤ .006). At the 24-month follow-up, neither the OSS (degenerative, 44 [SD, 6]; traumatic, 45 [SD, 6]; P = .346) nor the rates of repair failure (degenerative, 14 [6.1%]; traumatic 12 [6.3%]; P = .934) and additional surgeries (7 [3%]; 7 [3.7%]; P = .723) differed between groups. CONCLUSION Patients with degenerative and traumatic full-thickness supraspinatus tendon tears who had ARCR show satisfactory short-term functional results. Although patients with traumatic tears have lower baseline functional scores, they rehabilitate over time and show comparable clinical results 1 year after ARCR. Similarly, degenerative and traumatic rotator cuff tears show comparable structural outcomes, which suggests that degenerated tendons retain healing potential.
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Affiliation(s)
- Cornelia Baum
- Investigation performed at University Hospital Basel, Basel and the Schulthess Klinik, Zurich, Switzerland
| | - Laurent Audigé
- Surgical Outcome Research Center, Department of Clinical Research, University Hospital of Basel, Basel, Switzerland; Research and Development, Shoulder and Elbow Surgery, Schulthess Klinik, Zurich, Switzerland
| | - Thomas Stojanov
- Department of Orthopaedic and Trauma Surgery, University Hospital Basel, Basel, Switzerland; Research and Development, Shoulder and Elbow Surgery, Schulthess Klinik, Zurich, Switzerland
| | - Sebastian A. Müller
- Department of Orthopaedic and Trauma Surgery, Shoulder and Elbow, Cantonal Hospital Baselland, Bruderholz, Switzerland; Faculty of Medicine, University of Basel, Basel, Switzerland
| | - Christian Candrian
- Trauma and Ortho Unit, Ospedale Regionale di Lugano, Lugano, Switzerland
| | | | - Andreas M. Müller
- Department of Orthopaedic and Trauma Surgery, University Hospital Basel, Basel, Switzerland
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | - Sandra Weber
- Hôpital du Valais–Centre Hospitalier du Valais Romand, Martigny, CH
| | | | | | | | | | | | | | | | | | | | | | - Jakob Bräm
- Hirslanden Clinique la Colline, Geneva, CH
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | - Larissa Hübscher
- Institute of Social and Preventive Medicine, University of Bern, Bern, CH
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- University Library Basel, University of Basel, Basel, CH
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Karpinski K, Akguen D, Gebauer H, Paksoy A, Lupetti M, Markova V, Zettinig O, Moroder P. Reliability of Manual Measurements Versus Semiautomated Software for Glenoid Bone Loss Quantification in Patients With Anterior Shoulder Instability. Orthop J Sports Med 2024; 12:23259671231222938. [PMID: 38352173 PMCID: PMC10863483 DOI: 10.1177/23259671231222938] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/30/2023] [Accepted: 08/10/2023] [Indexed: 02/16/2024] Open
Abstract
Background The presence of glenoid bone defects is indicative in the choice of treatment for patients with anterior shoulder instability. In contrast to traditional linear- and area-based measurements, techniques such as the consideration of glenoid concavity have been proposed and validated. Purpose To compare the reliability of linear (1-dimensional [1D]), area (2-dimensional [2D]), and concavity (3-dimensional [3D]) measurements to quantify glenoid bone loss performed manually and to analyze how automated measurements affect reliability. Study Design Cohort study (diagnosis); Level of evidence, 3. Methods Computed tomography images of 100 patients treated for anterior shoulder instability with differently sized glenoid defects were evaluated independently by 2 orthopaedic surgeons manually using conventional software (OsiriX; Pixmeo) as well as automatically with a dedicated prototype software program (ImFusion Suite; ImFusion). Parameters obtained included 1D (defect diameter, best-fit circle diameter), 2D (defect area, best-fit circle area), and 3D (bony shoulder stability ratio) measurements. Mean values and reliability as expressed by the intraclass correlation coefficient [ICC]) were compared between the manual and automated measurements. Results When manually obtained, the measurements showed almost perfect agreement for 1D parameters (ICC = 0.83), substantial agreement for 2D parameters (ICC = 0.79), and moderate agreement for the 3D parameter (ICC = 0.48). When measurements were aided by automated software, the agreement between raters was almost perfect for all parameters (ICC = 0.90 for 1D, 2D, and 3D). There was a significant difference in mean values between manually versus automatically obtained measurements for 1D, 2D, and 3D parameters (P < .001 for all). Conclusion While more advanced measurement techniques that take glenoid concavity into account are more accurate in determining the biomechanical relevance of glenoid bone loss, our study showed that the reliability of manually performed, more complex measurements was moderate.
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Affiliation(s)
- Katrin Karpinski
- Centrum für Muskuloskeletale Chirurgie, Charité–Universitätsmedizin Berlin, Berlin, Germany
| | - Doruk Akguen
- Centrum für Muskuloskeletale Chirurgie, Charité–Universitätsmedizin Berlin, Berlin, Germany
| | - Henry Gebauer
- Centrum für Muskuloskeletale Chirurgie, Charité–Universitätsmedizin Berlin, Berlin, Germany
| | - Alp Paksoy
- Centrum für Muskuloskeletale Chirurgie, Charité–Universitätsmedizin Berlin, Berlin, Germany
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Moroder P, Lacheta L, Minkus M, Gebauer H, Paksoy A, Thiele K, Akgün D. SECEC Didier Patte Prize 2023: the ABC classification of posterior shoulder instability. J Shoulder Elbow Surg 2024:S1058-2746(24)00020-X. [PMID: 38218406 DOI: 10.1016/j.jse.2023.11.019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/05/2023] [Revised: 11/16/2023] [Accepted: 11/19/2023] [Indexed: 01/15/2024]
Abstract
BACKGROUND The ABC classification has recently been proposed as a comprehensive classification system for posterior shoulder instability (PSI). The purpose of this study was to analyze the comprehensiveness as well as inter-rater and intrarater reliability of the ABC classification. METHODS All consecutive patients presenting with unidirectional PSI from June 2019 to June 2021 were included in a prospective study. No patients were excluded, leaving a consecutive series of 100 cases of PSI in 91 patients. All recorded clinical and imaging data were used to create anonymized clinical case vignettes, which were evaluated twice according to the ABC classification at the end of the recruitment period in random sequential order by 4 independent raters (2 experienced shoulder surgeons and 2 orthopedic residents) to analyze the comprehensiveness as well as inter-rater and intrarater reliability of the ABC classification for PSI and to describe differences in characteristics among subtypes. Group A was defined as a first-time singular PSI event <3 months in the past regardless of etiology and is further subdivided into type 1 and type 2 depending on the occurrence of a subluxation (A1) or dislocation (A2). Group B comprises recurrent dynamic PSI regardless of time since onset and is further subdivided by the cause of instability into functional (B1) and structural (B2) dynamic PSI. Group C includes chronic static PSI with posterior humeral decentering that can be either constitutional (C1) or acquired (C2). RESULTS None of the cases was deemed unsuitable to be classified based on the proposed system by the observers. After consensus agreement between the 2 expert raters, 16 cases were attributed to group A (8 type A1 and 8 type A2); 64, to group B (33 type B1 and 31 type B2); and 20, to group C (11 type C1 and 9 type C2). The expert raters agreed on the classification subtypes in 99% and 96% of the cases during the first rating and second rating, respectively (intraclass correlation coefficients [ICCs], 0.998 and 0.99, respectively). The intraobserver reliability was excellent for both raters. The beginners reached the same conclusion as the consensus agreement in 94% of the cases (ICC, 0.99) and 89% of the cases (ICC, 0.97) during the first round and 94% each (ICC, 0.97) during the second round. The intraobserver reliability was excellent for both beginners. Overall, discrepancies between raters were found between groups B1 and B2 (n = 14), groups B2 and C2 (n = 4), groups B1 and C1 (n = 1), and groups A1 and B2 (n = 1). In general, each subtype showed distinctive clinical and imaging characteristics that facilitated the diagnosis. CONCLUSION The presented ABC classification for PSI is a comprehensive classification with a high reliability and reproducibility. However, a gradual transition and potential progression between the subtypes of PSI must be considered. The reliable distinction between different subtypes of PSI based on etiology and pathomechanism provides a standardized basis for future investigations on treatment recommendations.
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Affiliation(s)
- Philipp Moroder
- Department for Shoulder and Elbow Surgery, Schulthess Klinik, Zurich, Switzerland
| | - Lucca Lacheta
- Department of Sports Orthopedics, Technical University of Munich, Munich, Germany
| | - Marvin Minkus
- Center for Musculoskeletal Surgery, Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, Berlin Institute of Health, Berlin, Germany
| | - Henry Gebauer
- Center for Musculoskeletal Surgery, Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, Berlin Institute of Health, Berlin, Germany
| | - Alp Paksoy
- Center for Musculoskeletal Surgery, Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, Berlin Institute of Health, Berlin, Germany
| | - Kathi Thiele
- Center for Musculoskeletal Surgery, Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, Berlin Institute of Health, Berlin, Germany
| | - Doruk Akgün
- Center for Musculoskeletal Surgery, Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, Berlin Institute of Health, Berlin, Germany.
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Dukan R, Juvenspan M, Scheibel M, Moroder P, Teissier P, Werthel JD. Non-operative management of humeral periprosthetic fracture after stemless shoulder arthroplasty. Int Orthop 2024; 48:253-259. [PMID: 37857856 DOI: 10.1007/s00264-023-06005-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/27/2023] [Accepted: 10/04/2023] [Indexed: 10/21/2023]
Abstract
PURPOSE Periprosthetic fractures around a stemless implant often involve lesser and greater tuberosities with a well-fixed implant in the metaphysis. This exposes the surgeon to unique questions and challenges as no surgical option (open reduction and internal fixation or revision to a stem) appears satisfactory to address them. Purpose of this study was to evaluate the clinical outcomes after non-operative management of periprosthetic fractures after stemless shoulder arthroplasty. METHODS A retrospective multicenter study was conducted to identify all patients who had sustained non-operative management of a periprosthetic fracture after a stemless shoulder. Exclusion criteria were as follows: (1) intraoperative fractures and (2) implant loosening. Primary outcomes included mean Constant score and mean active range of motion. Secondary outcomes were VAS, radiological analysis, and complications. RESULTS Nine patients were included. One was excluded due to the loss of follow-up at three months. Mean age was 79 years. At the last follow-up, no significant difference was observed between the Constant score, VAS, or the range of motion before fracture and at the last follow-up. Fracture healing did not result in any change in angulation in the frontal plane in seven cases and was responsible for a varus malunion in two cases of anatomic arthroplasty. No change in lateralization or distalization was reported. No cases of implant loosening after fracture have been observed. CONCLUSIONS Conservative management seems to be appropriate in cases of minimally displaced fractures without implant loosening.
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Affiliation(s)
| | - Marc Juvenspan
- Institut Français de Chirurgie de la Main, Paris, France
| | | | | | | | - Jean David Werthel
- Hopital Ambroise Pare, Orthopedic Department, 9 Av. Charles de Gaulle, 92100, Boulogne-Billancourt, France
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Moroder P, Karpinski K, Akgün D, Danzinger V, Gerhardt C, Patzer T, Tauber M, Wellmann M, Scheibel M, Boileau P, Lambert S, Porcellini G, Audige L. Neuromuscular Electrical Stimulation-Enhanced Physical Therapist Intervention for Functional Posterior Shoulder Instability (Type B1): A Multicenter Randomized Controlled Trial. Phys Ther 2024; 104:pzad145. [PMID: 37870503 PMCID: PMC10824628 DOI: 10.1093/ptj/pzad145] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/18/2022] [Revised: 05/26/2023] [Accepted: 10/18/2023] [Indexed: 10/24/2023]
Abstract
OBJECTIVE Functional posterior shoulder instability (FPSI) (type B1) is a severe type of instability, mainly in teenagers and young adults, that leads to loss of function, pain, and stigmatization among peers. An experimental nonsurgical treatment protocol based on neuromuscular electrical stimulation (NMES) showed very promising early results in the treatment of FPSI. The hypothesis of this study was that NMES-enhanced physical therapy leads to better outcomes than physical therapy alone as the current gold standard of treatment in patients with FPSI. METHODS In this multicenter randomized controlled trial, patients with FPSI were randomly allocated in a 1:1 ratio to either 6 weeks of physical therapy or 6 weeks of physical therapy with simultaneous motion-triggered NMES. Baseline scores as well as outcome scores at 6 weeks, 3 months, 6 months, and 12 months after the intervention were obtained. The predefined primary outcome of this trial was the Western Ontario Shoulder Instability Index (WOSI) at the 3-month time point. RESULTS Forty-nine patients were randomized and eligible for the trial. The group that received physical therapy with simultaneous motion-triggered NMES showed a significantly better main outcome measurement in terms of the 3-month WOSI score (64% [SD = 16%] vs 51% [SD = 24%]). Two-thirds of the patients from the physical therapist group crossed over to the group that received physical therapy with simultaneous motion-triggered NMES due to dissatisfaction after the 3-month follow-up and showed a significant increase in their WOSI score from 49% [SD = 8%] to 67% [SD = 24%]. The frequency of instability episodes showed a significant improvement in the group that received physical therapy with simultaneous motion-triggered NMES at the 3-month follow-up and beyond, while in the physical therapist group, no significant difference was observed. CONCLUSION The current study shows that NMES-enhanced physical therapy led to statistically significant and clinically relevant improvement in outcomes in the treatment of FPSI compared to conventional physical therapy alone-from which even patients with prior unsatisfactory results after conventional physical therapy can benefit. IMPACT Based on the results of this study, NMES-enhanced physical therapy is an effective new treatment option for FPSI, a severe type of shoulder instability. NMES-enhanced physical therapy should be preferred over conventional physical therapy for the treatment of patients with FPSI.
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Affiliation(s)
- Philipp Moroder
- Department of Shoulder and Elbow Surgery, Schulthess Clinic, Zurich, Switzerland
| | - Katrin Karpinski
- Department for Shoulder and Elbow Surgery, Charité - Centrum für Muskuloskeletale Chirurgie, Berlin, Germany
| | - Doruk Akgün
- Department for Shoulder and Elbow Surgery, Charité - Centrum für Muskuloskeletale Chirurgie, Berlin, Germany
| | - Victor Danzinger
- Department for Shoulder and Elbow Surgery, Charité - Centrum für Muskuloskeletale Chirurgie, Berlin, Germany
| | - Christian Gerhardt
- Department of Traumatology, Hand Surgery and Sports Medicine, ViDia Clinics Karlsruhe, Karlsruhe, Germany
| | - Thilo Patzer
- Department of Orthopaedics and Trauma Surgery, Schoenklinik Düsseldorf, Düsseldorf, Germany
| | - Mark Tauber
- Deutsches Schulterzentrum, ATOS Klinik, Munich, Germany
| | | | - Markus Scheibel
- Department of Shoulder and Elbow Surgery, Schulthess Clinic, Zurich, Switzerland
- Department for Shoulder and Elbow Surgery, Charité - Centrum für Muskuloskeletale Chirurgie, Berlin, Germany
| | - Pascal Boileau
- Institute for Sports & Reconstructive Surgery, Groupe Kantys, Nice, France
| | - Simon Lambert
- Department of Trauma and Orthopedics, University College London Hospital NHS Foundation Trust, London, UK
| | - Giuseppe Porcellini
- Department of Orthopedics and Traumatology, University of Modena and Reggio Emilia, Modena, Italy
| | - Laurent Audige
- Department of Shoulder and Elbow Surgery, Schulthess Clinic, Zurich, Switzerland
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Klatte-Schulz F, Bormann N, Bonell A, Al-Michref J, Nguyen HL, Klöckner P, Thiele K, Moroder P, Seifert M, Sawitzki B, Wildemann B, Duda GN. Pro-Resolving Mediators in Rotator Cuff Disease: How Is the Bursa Involved? Cells 2023; 13:17. [PMID: 38201221 PMCID: PMC10778346 DOI: 10.3390/cells13010017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2023] [Revised: 12/08/2023] [Accepted: 12/18/2023] [Indexed: 01/12/2024] Open
Abstract
So far, tendon regeneration has mainly been analyzed independent from its adjacent tissues. However, the subacromial bursa in particular appears to influence the local inflammatory milieu in the shoulder. The resolution of local inflammation in the shoulder tissues is essential for tendon regeneration, and specialized pro-resolving mediators (SPMs) play a key role in regulating the resolution of inflammation. Here, we aimed to understand the influence of the bursa on disease-associated processes in neighboring tendon healing. Bursa tissue and bursa-derived cells from patients with intact, moderate and severe rotator cuff disease were investigated for the presence of pro-resolving and inflammatory mediators, as well as their effect on tenocytes and sensitivity to mechanical loading by altering SPM signaling mediators in bursa cells. SPM signal mediators were present in the bursae and altered depending on the severity of rotator cuff disease. SPMs were particularly released from the bursal tissue of patients with rotator cuff disease, and the addition of bursa-released factors to IL-1β-challenged tenocytes improved tenocyte characteristics. In addition, mechanical loading modulated pro-resolving processes in bursa cells. In particular, pathological high loading (8% strain) increased the expression and secretion of SPM signaling mediators. Overall, this study confirms the importance of bursae in regulating inflammatory processes in adjacent rotator cuff tendons.
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Affiliation(s)
- Franka Klatte-Schulz
- Julius Wolff Institut, Berlin Institute of Health at Charité-Universitätsmedizin Berlin, 13353 Berlin, Germany
- BIH-Center for Regenerative Therapies, Berlin Institute of Health at Charité-Universitätsmedizin Berlin, 13353 Berlin, Germany
| | - Nicole Bormann
- Julius Wolff Institut, Berlin Institute of Health at Charité-Universitätsmedizin Berlin, 13353 Berlin, Germany
- BIH-Center for Regenerative Therapies, Berlin Institute of Health at Charité-Universitätsmedizin Berlin, 13353 Berlin, Germany
| | - Aysha Bonell
- Julius Wolff Institut, Berlin Institute of Health at Charité-Universitätsmedizin Berlin, 13353 Berlin, Germany
- BIH-Center for Regenerative Therapies, Berlin Institute of Health at Charité-Universitätsmedizin Berlin, 13353 Berlin, Germany
| | - Jasmin Al-Michref
- Julius Wolff Institut, Berlin Institute of Health at Charité-Universitätsmedizin Berlin, 13353 Berlin, Germany
| | - Hoang Le Nguyen
- Julius Wolff Institut, Berlin Institute of Health at Charité-Universitätsmedizin Berlin, 13353 Berlin, Germany
| | - Pascal Klöckner
- Julius Wolff Institut, Berlin Institute of Health at Charité-Universitätsmedizin Berlin, 13353 Berlin, Germany
| | - Kathi Thiele
- Center for Musculoskeletal Surgery, Charité-Universitätsmedizin Berlin, 13353 Berlin, Germany
- Vivantes Auguste Viktoria Klinikum, 12157 Berlin, Germany
| | | | - Martina Seifert
- Institute of Medical Immunology, Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt University of Berlin, 13353 Berlin, Germany
| | - Birgit Sawitzki
- Institute of Medical Immunology, Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt University of Berlin, 13353 Berlin, Germany
- Center of Immunomics, Berlin Institute of Health at Charité-Universitätsmedizin Berlin, 13353 Berlin, Germany
| | - Britt Wildemann
- Julius Wolff Institut, Berlin Institute of Health at Charité-Universitätsmedizin Berlin, 13353 Berlin, Germany
- Experimental Trauma Surgery, Department of Trauma-, Hand- and Reconstructive Surgery, Jena University Hospital, Friedrich Schiller University Jena, 07747 Jena, Germany
| | - Georg N. Duda
- Julius Wolff Institut, Berlin Institute of Health at Charité-Universitätsmedizin Berlin, 13353 Berlin, Germany
- BIH-Center for Regenerative Therapies, Berlin Institute of Health at Charité-Universitätsmedizin Berlin, 13353 Berlin, Germany
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12
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Vetter P, Eckl L, Bellmann F, Moroder P, Audigé L, Scheibel M. The V angle compliments radiographic assessment of acute acromioclavicular joint dislocations by differentiating between Rockwood types III versus V and by considering dynamic horizontal translation in coronal radiographs. Knee Surg Sports Traumatol Arthrosc 2023; 31:5962-5969. [PMID: 37737320 DOI: 10.1007/s00167-023-07570-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/11/2023] [Accepted: 09/02/2023] [Indexed: 09/23/2023]
Abstract
PURPOSE Acromioclavicular joint (ACJ) dislocations are usually graded radiographically according to Rockwood, but differentiation between Rockwood types III and V may be ambiguous. The potentially clinically relevant horizontal instability is barely addressed in coronal radiographs. It was hypothesized that a new radiologic parameter (V angle) would complement ACJ diagnostics on anteroposterior radiographs by differentiating between cases of Rockwood III and V while also considering the aspect of dynamic horizontal translation (DHT). METHODS Ninety-five patients with acute ACJ dislocations (Rockwood types III and V) were included retrospectively between 2017 and 2020. On anteroposterior views (weightbearing: n = 62, non-weight-bearing: n = 33), the coracoclavicular (CC) distance and the newly introduced V angle for assessing scapular orientation were measured bilaterally. This angle is referenced between the spinal column and a line crossing the superior scapular angle and the crossing point between the supraspinatus fossa and the medial base of the coracoid process, reported as the side-comparative difference (non-injured side *minus* injured side). DHT on Alexander views was divided into stable, partially unstable or completely unstable. RESULTS The V angle on the injured side alone (mean 50.0°; 95% confidence interval (CI), 48.6°-51.3°) showed no correlation with the side-comparative CC distance [%] (r = - 0.040; n.s.). Thus, the V angle on the non-injured side was considered, displaying a normal distribution (n.s.) with a mean of 58.0° (95% CI, 56.6°-59.4°). The side-comparative V angle showed a correlation with the side-comparative CC distance (r = 0.83; p < 0.001) and was able to differentiate between Rockwood types III (4.7°; 95% CI, 3.9°-5.5°; n = 39) and V (10.3°; 95% CI, 9.7°-11.0°; n = 56) (p < 0.001). A cut-off value of 7° had a 94.6% sensitivity and an 82.1% specificity (area under curve, AUC: 0.954; 95% CI, 0.915-0.994). The side-comparative V angle was greater for cases with complete DHT (8.7°; 95% CI, 7.9°-9.5°; n = 78) than for cases with partial DHT (4.8°; 95% CI, 3.3°-6.3°; n = 16) (p < 0.001). A cut-off value of 5° showed a sensitivity of 84.6% and a specificity of 66.7% (AUC 0.824; 95% CI, 0.725-0.924). CONCLUSION The scapular-based V angle on anteroposterior radiographs distinguishes between Rockwood types III and V as well as cases with partial or complete DHT. STUDY DESIGN Diagnostic study. LEVEL OF EVIDENCE Level II.
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Affiliation(s)
- Philipp Vetter
- Department of Traumatology, University Hospital Zurich, Zurich, Switzerland.
| | - Larissa Eckl
- Department of Shoulder and Elbow Surgery, Schulthess Clinic, Zurich, Switzerland
| | - Frederik Bellmann
- Department of Shoulder and Elbow Surgery, Schulthess Clinic, Zurich, Switzerland
| | - Philipp Moroder
- Department of Shoulder and Elbow Surgery, Schulthess Clinic, Zurich, Switzerland
| | - Laurent Audigé
- Department of Shoulder and Elbow Surgery, Schulthess Clinic, Zurich, Switzerland
| | - Markus Scheibel
- Department of Shoulder and Elbow Surgery, Schulthess Clinic, Zurich, Switzerland
- Center for Musculoskeletal Surgery, Charite-Universitaetsmedizin Berlin, Berlin, Germany
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Eckl L, Vetter P, Bellmann F, Imiolczyk JP, Moroder P, Scheibel M. Management of Acute High-Grade Acromioclavicular Joint Dislocations: Comparable Clinical and Radiological Outcomes After Bidirectional Arthroscopic-Assisted Stabilization With the Single Low-Profile Suture Button Technique Versus Double-Suture Button Technique. Arthroscopy 2023; 39:2283-2290. [PMID: 37230186 DOI: 10.1016/j.arthro.2023.05.015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/22/2022] [Revised: 05/08/2023] [Accepted: 05/11/2023] [Indexed: 05/27/2023]
Abstract
PURPOSE To compare the 2-year clinical and radiological outcomes of an arthroscopic-assisted bidirectional stabilization procedure using a single low-profile (LPSB) or double-suture button (DSB) technique with additional percutaneous acromioclavicular (AC) cerclage fixation for patients with acute high-grade AC joint dislocation. METHODS This retrospective cohort study compared male patients aged between 18 and 56 years with acute high-grade AC joint dislocation fixed with either a LPSB or DSB technique. Patients were examined at least 24 months after surgery. Subjective Shoulder Value (SSV), Taft (TF), and Acromioclavicular Joint Instability (ACJI) scores were evaluated. Coracoclavicular difference, ossification, AC joint osteoarthritis, and dynamic posterior translation (DPT) were assessed on bilateral anteroposterior stress radiographs and modified Alexander views. The revision rate due to implant conflict and duration of surgery were reported. Group outcome differences were analyzed using standardized hypothesis tests. RESULTS 28 patients aged 39.2 (LPSB) and 36.4 years (DSB) (P = .319; CI: -2.77-8.34) were eligible per cohort. The follow-up was 30.5 (LPSB) and 37.4 months (DSB) (P = .02; CI: -12.73-1.08). LPSB patients rated a significantly higher SSV (93.2% vs 81.9% [DSB]; P = .004). TF and ACJI scores were similar between the groups. Coracoclavicular difference markedly decreased from 12 mm to 3 mm for both cohorts (P < .001). Ossification was identified in over 85% in both cohorts (P = .160; CI -0.77-0.13) and osteoarthritis in 21.4% (LPSB) and 39.3% (DSB) (P = .150). Persistent DPT was found in around 30% for both cohorts (P = .561; CI -0.26-0.48). The revision rates were 0% (LPSB) and 7% (DSB) (P = .491). LPSB surgery was shorter (59.7 vs 71.5 mins [DSB]) (P = .011). CONCLUSIONS The results of the LPSB and DSB techniques with additional percutaneous AC cerclage fixation showed comparable outcomes with excellent clinical and satisfactory radiological results. The assessment of the subjective patient satisfaction was in favor of the LPSB technique and no postoperative revision event was observed following this procedure. LEVEL OF EVIDENCE Level III, retrospective comparative therapeutic trial.
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Affiliation(s)
- Larissa Eckl
- Shoulder and Elbow Surgery, Schulthess Clinic, Zurich, Switzerland
| | - Philipp Vetter
- Department of Trauma Surgery, University Hospital, Zurich, Switzerland
| | | | - Jan-Philipp Imiolczyk
- Department of Shoulder and Elbow Surgery, Center for Musculoskeletal Surgery, Charité-Universitaetsmedizin, Berlin, Germany
| | - Philipp Moroder
- Shoulder and Elbow Surgery, Schulthess Clinic, Zurich, Switzerland
| | - Markus Scheibel
- Shoulder and Elbow Surgery, Schulthess Clinic, Zurich, Switzerland; Department of Shoulder and Elbow Surgery, Center for Musculoskeletal Surgery, Charité-Universitaetsmedizin, Berlin, Germany.
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Paksoy A, Akgün D, Moroder P, Scheibel M, Minkus M. Position of scapula and clavicle in acute acromioclavicular joint dislocations: depressed scapula or elevated distal clavicle? JSES Int 2023; 7:2296-2303. [PMID: 37969526 PMCID: PMC10638563 DOI: 10.1016/j.jseint.2023.06.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2023] Open
Abstract
Background Increased coracoclavicular distance due to acute acromioclavicular joint (ACJ) instability is often described as a pseudoelevation of the clavicle due to inferior hanging of the scapula, while the distal clavicle remains in its position. The aim of this study was to analyze whether the elevation of the distal clavicle, depression of the scapula, or both are associated with vertical instability and to evaluate the impact of weighted stress radiographs on the clavicle and scapular position in acute ACJ instabilities. Methods The cohort consisted of 505 patients (f = 52, m = 453; mean age 46 years) which presented to our emergency department or outpatient clinic and treated in our institution from 2006 to 2019 displaying an acute ACJ injury. The panorama views that displayed at least two vertebraes with their spinous processes were retrospectively evaluated. Two raters assessed the panorama views twice regarding the clavicular and coracoidal angle of both sides in relation to the cervicothoracal spine and the difference in height of both clavicles and coracoids. Results In our cohort, five types of displacement were distinguished: type A, only clavicle is elevated (N = 46); B, only scapula depressed (N = 36); C, the clavicle elevated and the scapula depressed (N = 67); D, both depressed (N = 133); and E, both elevated (N = 223). 123 patients had non-weighted radiographs and 353 patients stress views with 10 kg of axial load, whereas 29 patients had both radiological modalities. Among these 29 patients, a significant increase in coracoclavicular distance difference, clavicle, and scapula height (P < .05, respectively) was observed, when non-weighted radiographs were compared with weighted. A total of 13 shifts could be observed during the Rockwood type comparison of non-weighted radiographs with the weighted: six from Rockwood type II to III, two from type III to V, and five from type V to type III. Conclusion Acute injury to the ACJ does not exclusively lead to a depression of the scapula or an elevated distal clavicle but rather leads to various vertical displacement combinations, however mostly to the elevation of both structures possibly due to muscle spasm and pain. Comparing both radiological modalities of the same patients, the routine use of weighted views should be questioned, since often a shift of Rockwood stage can be observed might lead to on the one hand inadequate conservative treatment for underestimated injuries however on the other hand unnecessary surgery for overestimated dislocations.
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Affiliation(s)
- Alp Paksoy
- Charité University Hospital, Center for Musculoskeletal Surgery, Berlin, Germany
| | - Doruk Akgün
- Charité University Hospital, Center for Musculoskeletal Surgery, Berlin, Germany
| | | | - Markus Scheibel
- Charité University Hospital, Center for Musculoskeletal Surgery, Berlin, Germany
- Schulthess Klinik, Zurich, Switzerland
| | - Marvin Minkus
- Charité University Hospital, Center for Musculoskeletal Surgery, Berlin, Germany
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Moroder P, Paksoy A, Siegert P, Thiele K, Lacheta L, Akgün D. The Independent Double-Row (IDR) Bony Bankart Repair Technique. Z Orthop Unfall 2023; 161:538-543. [PMID: 35196739 DOI: 10.1055/a-1753-9883] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
A displaced anterior glenoid rim fracture, the so-called bony Bankart lesion, occurs after a traumatic shoulder dislocation resulting from a high energy trauma and is associated with recurrent shoulder instability. Different surgical techniques have been described in the literature to address this pathology, including open reduction and fixation, as well as arthroscopic transosseous, and single-row or double-row approaches with the use of suture anchors. However, there is currently no gold standard of treatment and the stability of fixation and the healing of the bony fragment are still a concern. The purpose of this report was to introduce an arthroscopic independent double-row (IDR) bony Bankart repair technique for fixation of large glenoid fractures.
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Affiliation(s)
- Philipp Moroder
- Department for Shoulder and Elbow Surgery, Charité - Centrum für Muskuloskeletale Chirurgie, Berlin, Germany
| | - Alp Paksoy
- Department for Shoulder and Elbow Surgery, Charité - Centrum für Muskuloskeletale Chirurgie, Berlin, Germany
| | - Paul Siegert
- Department for Shoulder and Elbow Surgery, Charité - Centrum für Muskuloskeletale Chirurgie, Berlin, Germany
| | - Kathi Thiele
- Department for Shoulder and Elbow Surgery, Charité - Centrum für Muskuloskeletale Chirurgie, Berlin, Germany
| | - Lucca Lacheta
- Department for Shoulder and Elbow Surgery, Charité - Centrum für Muskuloskeletale Chirurgie, Berlin, Germany
| | - Doruk Akgün
- Department for Shoulder and Elbow Surgery, Charité - Centrum für Muskuloskeletale Chirurgie, Berlin, Germany
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Plath JE, Martetschläger F, Moroder P, Sandmann G. Instabilities and Osteoarthritis of the Sternoclavicular Joint. Z Orthop Unfall 2023. [PMID: 37647924 DOI: 10.1055/a-2109-3190] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/01/2023]
Abstract
Injury to the sternoclavicular joint (SCG) is very rare, accounting for 3% of shoulder injuries and < 1% of instabilities. Consequently, both the treatment of acute instabilities and their subsequent states (chronic instabilities/SCG arthrosis) are controversial. While treatment has so far been mostly conservative, in recent years there has been a trend towards surgical therapy.Considerable violence, such as that found in traffic accidents or contact sports, can tear the extremely stable ligaments between the medial clavicle and sternum. While anterior dislocation is easier to reduce in most cases, instability remains in up to 50% of cases. In most cases, posterior instability requires rapid reduction, particularly due to the anatomical proximity to important cardio-pulmonary structures. If this succeeds, the rate of persistent instabilities is low. For chronic instability, reconstruction/augmentation of the ligament apparatus with tendon grafts in the "Figure of 8 configuration" has proven to be the standard technique in recent years.
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Affiliation(s)
| | | | - Philipp Moroder
- Abteilung Schulterchirurgie und Ellenbogenchirurgie, Schulthess Klinik Zürich, Zürich, Schweiz
| | - Gunther Sandmann
- Sportklinik Ravensburg, Sportklinik Ravensburg, Ravensburg, Deutschland
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Tauber M, Hoffelner T, Lehmann L, Kraus N, Scheibel M, Moroder P. Prospective Multicenter Randomized Controlled Trial of Surgical Versus Nonsurgical Treatment for Acute Rockwood Type 3 Acromioclavicular Injury. Orthop J Sports Med 2023; 11:23259671231190411. [PMID: 37655239 PMCID: PMC10467399 DOI: 10.1177/23259671231190411] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/15/2023] [Accepted: 04/27/2023] [Indexed: 09/02/2023] Open
Abstract
Background Evidence for the superiority of surgical versus nonsurgical treatment of Rockwood type 3 acromioclavicular joint (ACJ) dislocation is still lacking. Hypothesis It was hypothesized that surgical treatment will outperform nonsurgical treatment. Study Design Randomized controlled trial; Level of evidence, 1. Methods A prospective randomized trial involving 4 study centers was performed from January 1, 2011, to March 31, 2016. A total of 85 patients with acute Rockwood type 3 ACJ dislocations were allocated randomly to receive either nonsurgical or surgical treatment. A total of 70 patients were treated as allocated, and 8 patients made an early crossover from nonsurgical to surgical treatment, leaving 47 patients treated surgically and 31 patients nonsurgically. All patients were followed up longitudinally, including clinical evaluation using the Constant score and standardized radiographic evaluation, with final follow-up after 2 years. Results At no follow-up time point was there a significant difference in Constant score between the surgically and nonsurgically treated patients. Radiographic analysis showed not only an inferior coracoclavicular distance at all follow-up points for surgical treatment but also a higher incidence of posttraumatic osteoarthritis and heterotopic ossifications, without any negative clinical correlation. With regard to complications, 1 patient (3%) in the nonsurgical group underwent secondary surgical ACJ stabilization. The revision rate after surgical treatment was 17% (P < .001). Neither primary horizontal instability nor younger age were associated with inferior clinical outcomes after nonsurgical treatment. Conclusion Surgical treatment of ACJ Rockwood type 3 injuries did not lead to superior functional outcomes. Neither younger age nor horizontal instability were associated with inferior outcomes after nonsurgical treatment. Surgical treatment led to a slower recovery and to higher complication and revision rates. Registration ISRCTN registry (study ID: ISRCTN92265154).
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Affiliation(s)
- Mark Tauber
- German Shoulder Center, ATOS Clinic, Munich, Germany
- Department of Orthopaedic and Trauma Surgery, Paracelsus Medical University, Salzburg, Austria
| | - Thomas Hoffelner
- Department of Orthopaedic and Trauma Surgery, Paracelsus Medical University, Salzburg, Austria
| | - Lars Lehmann
- Department of Orthopaedics and Traumatology, St Vinzenz Kliniken, Karlsruhe, Germany
| | - Natascha Kraus
- Department of Shoulder and Elbow Surgery, Center for Musculoskeletal Surgery, Charitè University Hospital, Berlin, Germany
- Department of Orthopaedics, University Clinic, Greifswald, Germany
| | - Markus Scheibel
- Department of Shoulder and Elbow Surgery, Center for Musculoskeletal Surgery, Charitè University Hospital, Berlin, Germany
- Department of Shoulder and Elbow Surgery, Schulthess Clinic, Zurich, Switzerland
| | - Philipp Moroder
- Department of Shoulder and Elbow Surgery, Center for Musculoskeletal Surgery, Charitè University Hospital, Berlin, Germany
- Department of Shoulder and Elbow Surgery, Schulthess Clinic, Zurich, Switzerland
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Spagna G, Boehm E, Lorenz C, Moroder P, Scheibel M. [Treatment strategies for traumatic anterior shoulder dislocation]. Unfallchirurgie (Heidelb) 2023:10.1007/s00113-023-01340-x. [PMID: 37341735 DOI: 10.1007/s00113-023-01340-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Accepted: 05/11/2023] [Indexed: 06/22/2023]
Abstract
Anterior glenohumeral instability is the most frequent type of shoulder instability. This is often associated with labral and osseous lesions leading to recurrent instability. A detailed medical history, a physical examination and targeted diagnostic imaging are necessary to assess possible pathological soft tissue alterations as well as bony lesions of the humeral head and the glenoid bone. Early surgical treatment has been shown to reduce the risk of recurrence, especially in young active athletes, and can avoid secondary damage. Shoulder dislocations in older patients also require a detailed assessment and selection of treatment as persisting pain and limitation of movement can occur due to rotator cuff lesions and nerve injuries. The purpose of this article is to provide an overview of the currently available evidence and results regarding diagnostic considerations and conservative vs. surgical treatment and time to return to sport after treatment of a primary anterior shoulder dislocation.
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Affiliation(s)
- Giovanni Spagna
- Klinik für Schulter- und Ellbogenchirurgie, Schulthess Klinik Zürich, Lengghalde 2, 8008, Zürich, Schweiz.
| | - Elisabeth Boehm
- Klinik für Schulter- und Ellbogenchirurgie, Schulthess Klinik Zürich, Lengghalde 2, 8008, Zürich, Schweiz
| | - Christina Lorenz
- Klinik für Traumatologie, Universitätsspital Zürich, Zürich, Schweiz
| | - Philipp Moroder
- Klinik für Schulter- und Ellbogenchirurgie, Schulthess Klinik Zürich, Lengghalde 2, 8008, Zürich, Schweiz
| | - Markus Scheibel
- Klinik für Schulter- und Ellbogenchirurgie, Schulthess Klinik Zürich, Lengghalde 2, 8008, Zürich, Schweiz
- Centrum für Muskuloskeletale Chirurgie (CMSC), Charité-Universitätsmedizin Berlin, Berlin, Deutschland
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Karpinski K, Akgün D, Gebauer H, Festbaum C, Lacheta L, Thiele K, Moroder P. Arthroscopic Posterior Capsulolabral Repair With Suture-First Versus Anchor-First Technique in Patients With Posterior Shoulder Instability (Type B2): Clinical Midterm Follow-up. Orthop J Sports Med 2023; 11:23259671221146167. [PMID: 37168324 PMCID: PMC10164863 DOI: 10.1177/23259671221146167] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/07/2022] [Accepted: 09/26/2022] [Indexed: 05/13/2023] Open
Abstract
Background Isolated soft tissue injuries of the posterior capsulolabral complex can be addressed arthroscopically, with various anchor systems available for repair. Purpose To evaluate clinical and patient-reported outcomes after arthroscopic capsulolabral repair in patients with posterior shoulder instability (PSI) and to compare differences in outcomes between patients treated with a suture-first technique (PushLock anchor) and an anchor-first technique (FiberTak all-suture anchor). Study Design Cohort study; Level of evidence, 3. Methods Included were 32 patients with dynamic structural PSI (type B2 according to the ABC classification) treated with an arthroscopic posterior capsulolabral repair. After a mean follow-up time of 4.8 ± 3.4 years (range, 2-11) patients were evaluated clinically, and standardized outcome scores were obtained for the Subjective Shoulder Value (SSV), the Western Ontario Shoulder Instability Index (WOSI), Rowe, Kerlan-Jobe Orthopaedic Clinic (KJOC), patient satisfaction (0-5 [best]), and pain on a visual analog scale (VAS; 0-10 [worst]). Results The overall satisfaction level with the outcome of the surgery was 4.6 ± 0.5 (range, 4-5). No patient suffered from instability events. The mean VAS level for pain was 0.4 ± 0.9 (range, 0-4) at rest and 1.9 ± 2.0 (range, 0-6) during motion. The mean SSV was 80 ± 17 (range, 30-100), the mean postoperative WOSI score 75% ± 19% (range, 18-98), the mean Rowe score 78 ± 20 (range, 10-100), and the mean KJOC score was 81 ± 18 (range, 40-100) for the entire cohort. There was no significant difference between the techniques with regard to range of motion, strength, or clinical outcome scores. Conclusion Arthroscopic posterior capsulolabral repair was a satisfactory method to treat structural PSI type B2 with regard to stability, pain relief, and functional restoration. The majority of patients had good outcomes. No differences in outcomes were observed between the anchor-first and suture-first techniques.
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Affiliation(s)
| | - Doruk Akgün
- Charité Universitätsmedizin Berlin, Berlin, Germany
| | | | | | | | - Kathi Thiele
- Charité Universitätsmedizin Berlin, Berlin, Germany
| | - Philipp Moroder
- Schulthess Klinik Zürich, Zürich, Switzerland
- Philipp Moroder, Prof., Schulthess Klinik Zürich, Lengghalde 2 I, 8008 Zürich, Switzerland ()
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Wiethölter M, Akgün D, Plachel F, Minkus M, Karczewski D, Braun K, Thiele K, Becker L, Stöckle U, Moroder P. Inter-Observer and Intra-Observer Reliability Assessment of the Established Classification Systems for Periprosthetic Shoulder Fractures. J Clin Med 2023; 12:jcm12093168. [PMID: 37176610 PMCID: PMC10179361 DOI: 10.3390/jcm12093168] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2023] [Revised: 04/17/2023] [Accepted: 04/22/2023] [Indexed: 05/15/2023] Open
Abstract
This study evaluated the reliability and comprehensiveness of the Unified classification system (UCPF), Wright & Cofield, Worland and Kirchhoff classifications and related treatment recommendations for periprosthetic shoulder fractures (PPSFx). Two shoulder arthroplasty specialists (experts) and two orthopaedic residents (non-experts) assessed 20 humeral-sided and five scapula-sided cases of PPSFx. We used the unweighted Cohen's Kappa (κ) for measuring the intra-observer reliability and Krippendorff's alpha (α) for measuring the inter-observer reliability. The inter-rater reliabilities for the Wright & Cofield and Worland classifications were substantial for all groups. The expert and non-expert groups for UCPF also showed substantial inter-rater agreement. The all-rater group for the UCPF and the expert and non-expert group for the Kirchhoff classification revealed moderate inter-rater reliability. For the Kirchhoff classification, only fair inter-rater reliability was found for the non-expert group. Almost perfect intra-rater reliability was measured for all groups of the Wright & Cofield classification and the all-rater and expert groups of the UCPF. All groups of the Kirchhoff and Worland classifications and the group of non-experts for the UCPF had substantial intra-rater reliabilities. Regarding treatment recommendations, substantial inter-rater and moderate intra-rater reliabilities were found. Simple classification systems for PPSFx (Wright & Cofield, Worland) show the highest inter- and intra-observer reliability but lack comprehensiveness as they fail to describe scapula-sided fractures. The complex Kirchhoff classification shows limited reliability. The UCPF seems to offer an acceptable combination of comprehensiveness and reliability.
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Affiliation(s)
- Mats Wiethölter
- Department of Trauma, Hand and Reconstructive Surgery, University Hospital Münster, 48149 Münster, Germany
- Center for Musculoskeletal Surgery, Charité-University Medicine Berlin, 13353 Berlin, Germany
| | - Doruk Akgün
- Center for Musculoskeletal Surgery, Charité-University Medicine Berlin, 13353 Berlin, Germany
| | - Fabian Plachel
- Center for Musculoskeletal Surgery, Charité-University Medicine Berlin, 13353 Berlin, Germany
| | - Marvin Minkus
- Center for Musculoskeletal Surgery, Charité-University Medicine Berlin, 13353 Berlin, Germany
| | - Daniel Karczewski
- Center for Musculoskeletal Surgery, Charité-University Medicine Berlin, 13353 Berlin, Germany
| | - Karl Braun
- Department of Trauma Surgery, Klinikum Rechts der Isar, Technical University of Munich, 81675 Munich, Germany
| | - Kathi Thiele
- Center for Musculoskeletal Surgery, Charité-University Medicine Berlin, 13353 Berlin, Germany
| | - Luis Becker
- Center for Musculoskeletal Surgery, Charité-University Medicine Berlin, 13353 Berlin, Germany
| | - Ulrich Stöckle
- Center for Musculoskeletal Surgery, Charité-University Medicine Berlin, 13353 Berlin, Germany
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Siegert P, Meraner D, Pokorny-Olsen A, Akgün D, Korn G, Albrecht C, Hofstaetter JG, Moroder P. Practical considerations for determination of scapular internal rotation and its relevance in reverse total shoulder arthroplasty planning. J Orthop Surg Res 2023; 18:279. [PMID: 37020305 PMCID: PMC10077691 DOI: 10.1186/s13018-023-03762-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/27/2022] [Accepted: 03/29/2023] [Indexed: 04/07/2023] Open
Abstract
BACKGROUND Scapulothoracic orientation, especially scapular internal rotation (SIR) may influence range of motion in reverse total shoulder arthroplasty (RTSA) and is subjected to body posture. Clinical measurements of SIR rely on apical bony landmarks, which depend on changes in scapulothoracic orientation, while radiographic measurements are often limited by the restricted field of view (FOV) in CT scans. Therefore, the goal of this study was (1) to determine whether the use of CT scans with a limited FOV to measure SIR is reliable and (2) if a clinical measurement could be a valuable alternative. METHODS This anatomical study analyzed the whole-body CT scans of 100 shoulders in 50 patients (32 male and 18 female) with a mean age of 61.2 ± 20.1 years (range 18; 91). (1) CT scans were rendered into 3D models and SIR was determined as previously described. Results were compared to measurements taken in 2D CT scans with a limited FOV. (2) Three apical bony landmarks were defined: (the angulus acromii (AA), the midpoint between the AA and the coracoid process tip (C) and the acromioclavicular (AC) joint. The scapular axis was determined connecting the trigonum scapulae with these landmarks and referenced to the glenoid center. The measurements were repeated with 0°, 10°, 20°, 30° and 40° anterior scapular tilt. RESULTS Mean SIR was 44.8° ± 5.9° and 45.6° ± 6.6° in the 3D and 2D model, respectively (p < 0.371). Mean difference between the measurements was 0.8° ± 2.5° with a maximum of 10.5°. Midpoint AA/C showed no significant difference to the scapular axis at 0° (p = 0.203) as did the AC-joint at 10° anterior scapular tilt (p = 0.949). All other points showed a significant difference from the scapular axis at all degrees of tilt. CONCLUSION 2D CT scans are reliable to determine SIR, even if the spine is not depicted. Clinical measurements using apical superficial scapula landmarks are a possible alternative; however, anterior tilt influenced by posture alters measured SIR.
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Affiliation(s)
- Paul Siegert
- 1st Orthopaedic Department, Orthopaedic Hospital Speising, Speisinger Str. 109, 1130, Vienna, Austria.
- Michael Ogon Laboratory for Orthopaedic Research, Orthopaedic Hospital Speising, Vienna, Austria.
| | - Dominik Meraner
- 1st Orthopaedic Department, Orthopaedic Hospital Speising, Speisinger Str. 109, 1130, Vienna, Austria
| | - Alexandra Pokorny-Olsen
- 1st Orthopaedic Department, Orthopaedic Hospital Speising, Speisinger Str. 109, 1130, Vienna, Austria
| | - Doruk Akgün
- Department for Shoulder and Elbow Surgery, Charité - Universitätsmedizin Berlin, Berlin, Germany
| | - Gundobert Korn
- Department of Orthopaedic and Traumasurgery, Paracelsus Medical University, Salzburg, Austria
| | - Christian Albrecht
- 1st Orthopaedic Department, Orthopaedic Hospital Speising, Speisinger Str. 109, 1130, Vienna, Austria
- Michael Ogon Laboratory for Orthopaedic Research, Orthopaedic Hospital Speising, Vienna, Austria
| | - Jochen G Hofstaetter
- Michael Ogon Laboratory for Orthopaedic Research, Orthopaedic Hospital Speising, Vienna, Austria
- 2nd Orthopaedic Department, Orthopaedic Hospital Speising, Vienna, Austria
| | - Philipp Moroder
- Department of Shoulder and Elbow Surgery, Schulthess Clinic, Zurich, Switzerland
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Akgün D, Al-Muhtaresh F, Paksoy A, Lacheta L, Minkus M, Karczewski D, Moroder P. The role of serum D-Dimer for the diagnosis of periprosthetic shoulder infection. Arch Orthop Trauma Surg 2023; 143:1855-1860. [PMID: 35182199 PMCID: PMC10030413 DOI: 10.1007/s00402-022-04385-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/18/2021] [Accepted: 02/05/2022] [Indexed: 11/02/2022]
Abstract
INTRODUCTION D-Dimer was recently identified as an additional biomarker in the diagnosis of hip and knee periprosthetic joint infection (PJI). Currently, there is only one study in literature dealing with the role of D-Dimer in the diagnosis of shoulder PJI. The purpose of this study was, therefore, to validate the sensitivity and specificity of D-Dimer in detecting shoulder PJI. MATERIALS AND METHODS All patients, who underwent septic or aseptic revision shoulder arthroplasty in our institution between November 2018 und March 2021, were analyzed. Our cohort consisted of 30 patients, of that 14 (47%) had a shoulder PJI according the last proposed criteria of the International Consensus Meeting. The diagnostic validity of serum D-Dimer regarding the detection of PJI was analyzed. RESULTS The mean D-Dimer level was significantly higher for the patients with shoulder PJI compared to patients with aseptic failure (1.44 ± 1 mg/l vs. 0.76 ± 0.6 mg/l, p = 0.025). Coagulase-negative staphylococci were the most commonly isolated pathogens, in 9/14 patients (64%), followed by Cutibacterium acnes in 5/14 patients (36%). According to the ROC analysis, a serum D-Dimer threshold of 0.75 mg/l had a sensitivity of 86% and a specificity of 56% for detection of a shoulder PJI. The area under curve was 0.74. A serum C-reactive protein (CRP) cutoff of 10 mg/l showed a sensitivity of 69% and a specificity of 88%. When both serum D-Dimer and CRP above the thresholds of 0.75 mg/l and 10 mg/l, respectively, were used to identify a PJI the sensitivity and specificity were 57% and 100%, respectively. CONCLUSIONS Serum D-Dimer showed a good sensitivity but a poor specificity for the diagnosis of shoulder PJI. Combination D-Dimer and CRP led to improvement of the specificity, however, at the cost of sensitivity. Thus, combination of both methods may be used as a confirmatory test in the diagnosis of shoulder PJI but not to rule out infection. LEVEL OF EVIDENCE Diagnostic level II.
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Affiliation(s)
- Doruk Akgün
- Center for Musculoskeletal Surgery, Berlin Institute of Health, Charité - Universitätsmedizin Berlin, Freie Universität Berlin, Humboldt-Universität Zu Berlin, Augustenburger Platz 1, 13353, Berlin, Germany.
| | - Faisal Al-Muhtaresh
- Center for Musculoskeletal Surgery, Berlin Institute of Health, Charité - Universitätsmedizin Berlin, Freie Universität Berlin, Humboldt-Universität Zu Berlin, Augustenburger Platz 1, 13353, Berlin, Germany
| | - Alp Paksoy
- Center for Musculoskeletal Surgery, Berlin Institute of Health, Charité - Universitätsmedizin Berlin, Freie Universität Berlin, Humboldt-Universität Zu Berlin, Augustenburger Platz 1, 13353, Berlin, Germany
| | - Lucca Lacheta
- Center for Musculoskeletal Surgery, Berlin Institute of Health, Charité - Universitätsmedizin Berlin, Freie Universität Berlin, Humboldt-Universität Zu Berlin, Augustenburger Platz 1, 13353, Berlin, Germany
| | - Marvin Minkus
- Center for Musculoskeletal Surgery, Berlin Institute of Health, Charité - Universitätsmedizin Berlin, Freie Universität Berlin, Humboldt-Universität Zu Berlin, Augustenburger Platz 1, 13353, Berlin, Germany
| | - Daniel Karczewski
- Center for Musculoskeletal Surgery, Berlin Institute of Health, Charité - Universitätsmedizin Berlin, Freie Universität Berlin, Humboldt-Universität Zu Berlin, Augustenburger Platz 1, 13353, Berlin, Germany
| | - Philipp Moroder
- Center for Musculoskeletal Surgery, Berlin Institute of Health, Charité - Universitätsmedizin Berlin, Freie Universität Berlin, Humboldt-Universität Zu Berlin, Augustenburger Platz 1, 13353, Berlin, Germany
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Hwang S, Werner BC, Provencher M, Horinek JL, Moroder P, Ardebol J, Denard PJ. Short term Functional Outcomes of Reverse Shoulder Arthroplasty Following Three-Dimensional Planning is Similar Whether Placed with a Standard Guide or Patient Specific Instrumentation (PSI). J Shoulder Elbow Surg 2023:S1058-2746(23)00293-8. [PMID: 37004738 DOI: 10.1016/j.jse.2023.02.136] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/15/2022] [Revised: 02/07/2023] [Accepted: 02/20/2023] [Indexed: 04/04/2023]
Abstract
BACKGROUND Preoperative assessment of the glenoid and surgical placement of the initial guide wire are important in implant positioning during reverse total shoulder arthroplasty (rTSA). Three-dimensional (3D) computed tomography (CT) and patient specific instrumentation (PSI) have improved the placement of the glenoid component, but the impact on clinical outcomes remains unclear. The purpose of this study was to compare short term clinical outcomes after rTSA based on intraoperative technique for central guidewire placement in a cohort of patients that had preoperative 3D planning. METHODS A retrospective matched analysis was performed from a multicenter prospective cohort of patients who underwent rTSA with preoperative 3D planning and a minimum of 2-year clinical follow-up. Patients were divided into 2 cohorts based on the technique utilized for glenoid guide pin placement: 1) Standard manufacture guide (SG) that was not customized or 2) PSI. Patient reported outcomes (PROs), active range of motion (ROM), and strength measures were compared between the groups. The ASES score was used to assess the minimum clinically important difference (MCID), substantial clinical benefit (SCB), and patient acceptable symptomatic state (PASS). RESULTS One hundred seventy patients met the study criteria, including 56 performed with SGs and 122 with PSI. There was no difference in PROs between cohorts. There were no significant differences in the percentage of patients that achieved an ASES MCID, SCB, or PASS. Improvement in internal rotation to the nearest spinal level (p < .001) and at 90° (p = .002) were higher in the SG group and, but likely explained by differences in glenoid lateralization utilized. Improvement in abduction strength (p < .001) and external rotation strength (p = .010) were higher in the PSI group. CONCLUSION rTSA performed following preoperative 3D planning leads to similar improvement in PROs regardless of whether a SG or PSI are utilized intraoperatively for central glenoid wire placement. Greater improvement in postoperative strength was observed with the use of PSI, but the clinical significance of this finding is unclear.
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Affiliation(s)
| | | | | | | | - Philipp Moroder
- Department for Shoulder and Elbow Surgery, Schulthess Clinic, Zurich, Switzerland
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Plachel F, Akgün D, Imiolczyk JP, Minkus M, Moroder P. Patient-specific risk profile associated with early-onset primary osteoarthritis of the shoulder: is it really primary? Arch Orthop Trauma Surg 2023; 143:699-706. [PMID: 34406506 PMCID: PMC9925503 DOI: 10.1007/s00402-021-04125-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/21/2021] [Accepted: 08/12/2021] [Indexed: 10/20/2022]
Abstract
INTRODUCTION Although age is considered to be the major risk factor of primary glenohumeral osteoarthritis (GOA), younger population may suffer from degenerative changes of the shoulder joint without evidence of any leading cause. The purpose of this study was to investigate the risk profile in young patients suffering from presumably primary GOA. METHODS A consecutive group of 47 patients undergoing primary shoulder arthroplasty for early-onset GOA below the age of 60 years at time of surgery was retrospectively identified and prospectively evaluated. Patients with identifiable cause for GOA (secondary GOA) were excluded. The resulting 32 patients (mean age 52 ± 7 years; 17 male, 15 female) with primary GOA were matched by age (± 3 years) and gender to 32 healthy controls (mean age 53 ± 7 years; 17 male, 15 female). Demographic data and patient-related risk factors were assessed and compared among both groups to identify extrinsic risk factors for primary GOA. Patients were further subdivided into a group with concentric GOA (group A) and a group with eccentric GOA (group B) to perform a subgroup analysis. RESULTS Patients had a significantly higher BMI (p = 0.017), were more likely to be smokers (p < 0.001) and to have systematic diseases such as hypertension (p = 0.007) and polyarthritis (p < 0.001) and a higher Shoulder Activity Level (SAL) (p < 0.001) when compared to healthy controls. Furthermore, group B had a significantly higher SAL not only compared to healthy controls but also to group A, including activities such as combat sport (p = 0.048) and weightlifting (p = 0.01). CONCLUSIONS Several patient-specific risk factors are associated with primary GOA in the young population, as well as highly shoulder demanding activities in the development of eccentric GOA. Consequently, a subset of young patients with eccentric primary GOA could in reality be secondary due to a muscular imbalance between internal and external rotators caused by improper weight training. LEVEL OF EVIDENCE III, Case-Control study.
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Affiliation(s)
- Fabian Plachel
- Center for Musculoskeletal Surgery, Charité-Universitaetsmedizin Berlin, Campus Virchow, Augustenburger Platz 1, 13353, Berlin, Germany.
| | - Doruk Akgün
- grid.6363.00000 0001 2218 4662Center for Musculoskeletal Surgery, Charité—Universitaetsmedizin Berlin, Campus Virchow, Augustenburger Platz 1, 13353 Berlin, Germany
| | - Jan-Philipp Imiolczyk
- grid.6363.00000 0001 2218 4662Center for Musculoskeletal Surgery, Charité—Universitaetsmedizin Berlin, Campus Virchow, Augustenburger Platz 1, 13353 Berlin, Germany
| | - Marvin Minkus
- grid.6363.00000 0001 2218 4662Center for Musculoskeletal Surgery, Charité—Universitaetsmedizin Berlin, Campus Virchow, Augustenburger Platz 1, 13353 Berlin, Germany
| | - Philipp Moroder
- grid.6363.00000 0001 2218 4662Center for Musculoskeletal Surgery, Charité—Universitaetsmedizin Berlin, Campus Virchow, Augustenburger Platz 1, 13353 Berlin, Germany
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Moroder P, Gebauer H, Paksoy A, Siegert P, Festbaum C, Rüttershoff K, Lacheta L, Thiele K, Akgün D. Arthroscopic Posterior Articular Coverage and Shift (PACS) Procedure for Treatment of Preosteoarthritic Constitutional Static Posterior Shoulder Instability (Type C1). Am J Sports Med 2022; 50:3617-3624. [PMID: 36178161 PMCID: PMC9630853 DOI: 10.1177/03635465221124851] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
BACKGROUND Different joint-preserving techniques for treatment of preosteoarthritic, constitutional static (type C1) posterior shoulder instability (PSI) have been proposed, including posterior glenoid open wedge osteotomy and bone graft augmentation. However, the techniques are demanding, the reported complication and reoperation rates are high, and posterior decentering cannot reliably be reversed. PURPOSE To assess the clinical and radiological longitudinal outcomes of patients with type C1 PSI after arthroscopic posterior articular coverage and shift (PACS) surgery. STUDY DESIGN Case series; Level of evidence, 4. METHODS We performed a retrospective analysis of a prospective database with longitudinal follow-up including 14 shoulders in 13 patients who underwent an arthroscopic PACS procedure for symptomatic preosteoarthritic constitutional static posterior instability (type C1) with previous failed nonoperative treatment. Patients were clinically evaluated before surgery and at 3, 6, 12, and 24 months postoperatively in terms of satisfaction and pain levels as well as standardized physical examination, Subjective Shoulder Value (SSV), Western Ontario Shoulder Instability Index (WOSI) score, Constant score, and Rowe score. Preoperative, postoperative, and follow-up magnetic resonance imaging scans were obtained in all patients. A paired 2-sample t test was used to compare changes in continuous variable parameters over time. Correlation analyses were performed using the Pearson correlation coefficient. RESULTS All outcome scores and the pain level improved significantly from preoperatively to postoperatively, and the improvement was sustained over the follow-up period of 2 years (pain level, 6.4 preoperatively vs 3.3 at 2 years, P < .001; SSV, 40 vs 70, P = .001; WOSI, 33 vs 56, P = .001; Constant, 70 vs 79, P = .049; Rowe, 52 vs 76, P < .001). The mean glenohumeral and scapulohumeral subluxation indices were significantly lower in the early postoperative period compared with preoperative measurements (glenohumeral, 52% ± 6% vs 58% ± 10%, P = .02; scapulohumeral, 70% ± 8%; vs 77% ± 9%, P = .002, respectively); however, they returned to baseline values at follow-up (57% ± 7% vs 58% ± 10%, P = .7; 75% ± 6% vs 77% ± 9%, P = .4, respectively). A high scapulohumeral subluxation index, excessive glenoid retroversion, and increased posterior positioning of the humeral head in relation to scapular blade axis and older age were correlated with worse clinical outcomes. CONCLUSION Over the follow-up period of 2 years, the PACS procedure significantly improved outcome scores in patients who had preosteoarthritic constitutional static posterior shoulder instability, especially in younger patients with less severe glenoid retroversion and posterior decentering of the humeral head. However, similar to other techniques, the PACS procedure needs to be considered a symptomatic therapy that does not reverse the underlying cause or stop the progressive pathology.
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Affiliation(s)
- Philipp Moroder
- Department of Shoulder and Elbow
Surgery, Schulthess Clinic, Zurich, Switzerland,Philipp Moroder, MD, Department of Shoulder and Elbow Surgery,
Schulthess Clinic Zurich, Lengghalde 2, 8008 Zurich, Switzerland (
)
| | - Henry Gebauer
- Department of Shoulder and Elbow
Surgery, Charité Universitaetsmedizin Berlin, Berlin, Germany
| | - Alp Paksoy
- Department of Shoulder and Elbow
Surgery, Charité Universitaetsmedizin Berlin, Berlin, Germany
| | - Paul Siegert
- Department of Shoulder and Elbow
Surgery, Charité Universitaetsmedizin Berlin, Berlin, Germany
| | - Christian Festbaum
- Department of Shoulder and Elbow
Surgery, Charité Universitaetsmedizin Berlin, Berlin, Germany
| | - Katja Rüttershoff
- Department of Shoulder and Elbow
Surgery, Charité Universitaetsmedizin Berlin, Berlin, Germany
| | - Lucca Lacheta
- Department of Shoulder and Elbow
Surgery, Charité Universitaetsmedizin Berlin, Berlin, Germany
| | - Kathi Thiele
- Department of Shoulder and Elbow
Surgery, Charité Universitaetsmedizin Berlin, Berlin, Germany
| | - Doruk Akgün
- Department of Shoulder and Elbow
Surgery, Charité Universitaetsmedizin Berlin, Berlin, Germany
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26
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Endell D, Child C, Freislederer F, Moroder P, Scheibel M. [Treatment of subscapularis tendon lesions]. Unfallchirurgie (Heidelb) 2022; 125:731-740. [PMID: 35943549 DOI: 10.1007/s00113-022-01221-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 07/07/2022] [Indexed: 06/15/2023]
Abstract
The further development of minimally invasive techniques in recent years, enables adequate intraoperative visualization, mobilization and stable reconstruction even of larger subscapularis tears resulting in good to excellent clinical and structural results. Chronic tears of the subscapularis tendon with high grade muscle atrophy and advanced fatty infiltration can be treated with a muscle tendon transfer (e.g. pectoralis major or latissimus dorsi transfer). If pseudoparalysis and/or signs of anterosuperior decentration of the humeral head or defect arthropathy are present, in most cases a reverse shoulder arthroplasty represents the only surgical option.
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Affiliation(s)
- David Endell
- Klinik für Schulter- und Ellbogenchirurgie, Schulthess Klinik Zürich, Lengghalde 2, 8008, Zürich, Schweiz.
| | - Christopher Child
- Klinik für Schulter- und Ellbogenchirurgie, Schulthess Klinik Zürich, Lengghalde 2, 8008, Zürich, Schweiz
| | - Florian Freislederer
- Klinik für Schulter- und Ellbogenchirurgie, Schulthess Klinik Zürich, Lengghalde 2, 8008, Zürich, Schweiz
| | - Philipp Moroder
- Klinik für Schulter- und Ellbogenchirurgie, Schulthess Klinik Zürich, Lengghalde 2, 8008, Zürich, Schweiz
| | - Markus Scheibel
- Klinik für Schulter- und Ellbogenchirurgie, Schulthess Klinik Zürich, Lengghalde 2, 8008, Zürich, Schweiz
- Centrum für Muskuloskeletale Chirurgie (CMSC), Charité - Universitätsmedizin Berlin, Berlin, Deutschland
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27
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Endell D, Child C, Freislederer F, Moroder P, Scheibel M. [Anatomy and diagnostics of subscapularis tendon lesions]. Unfallchirurgie (Heidelb) 2022; 125:647-658. [PMID: 35819495 DOI: 10.1007/s00113-022-01207-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 06/10/2022] [Indexed: 06/15/2023]
Abstract
Among lesions of the rotator cuff, subscapularis tendon tears are one of the less common injuries and mostly occur in combination with additional lesions of the posterosuperior rotator cuff and the long biceps tendon. If a subscapularis tendon rupture is suspected in the initial clinical testing, the primary diagnostics should include modern cross-sectional magnetic resonance imaging to assess the tendon lesion and to detect concomitant pathologies. Nevertheless, subscapularis tendon lesions are often initially overlooked and first correctly diagnosed during shoulder arthroscopy.
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Affiliation(s)
- David Endell
- Klinik für Schulter- und Ellbogenchirurgie, Schulthess Klinik Zürich, Lengghalde 2, 8008, Zürich, Schweiz.
| | - Christopher Child
- Klinik für Schulter- und Ellbogenchirurgie, Schulthess Klinik Zürich, Lengghalde 2, 8008, Zürich, Schweiz
| | - Florian Freislederer
- Klinik für Schulter- und Ellbogenchirurgie, Schulthess Klinik Zürich, Lengghalde 2, 8008, Zürich, Schweiz
| | - Philipp Moroder
- Klinik für Schulter- und Ellbogenchirurgie, Schulthess Klinik Zürich, Lengghalde 2, 8008, Zürich, Schweiz
| | - Markus Scheibel
- Klinik für Schulter- und Ellbogenchirurgie, Schulthess Klinik Zürich, Lengghalde 2, 8008, Zürich, Schweiz
- Centrum für Muskuloskeletale Chirurgie (CMSC), Charité - Universitätsmedizin Berlin, Berlin, Deutschland
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Moroder P, Lacheta L, Minkus M, Karpinski K, Uhing F, De Souza S, van der Merwe M, Akgün D. Implant Sizing and Positioning in Anatomical Total Shoulder Arthroplasty Using a Rotator Cuff-Sparing Postero-Inferior Approach. J Clin Med 2022; 11:jcm11123324. [PMID: 35743395 PMCID: PMC9224587 DOI: 10.3390/jcm11123324] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2022] [Revised: 05/29/2022] [Accepted: 06/08/2022] [Indexed: 11/25/2022] Open
Abstract
Background: The goal of this study was to compare the effectiveness of a rotator cuff-sparing postero-inferior (PI) approach with subdeltoidal access to the traditional subscapularis-takedown deltopectoral approach, in terms of implant sizing and positioning in anatomical total shoulder arthroplasty (aTSA). Methods: This study involved 18 human cadaveric shoulders with intact rotator cuffs and no evidence of head deforming osteoarthritis. An Eclipse stemless aTSA (Arthrex, Naples, FL, USA) was implanted in nine randomly selected specimens using a standard subscapularis-tenotomy deltopectoral approach, and in the other nine specimens using the cuff-sparing PI approach. Pre- and postoperative antero-posterior (AP) and axillary fluoroscopic radiographs were analyzed by two independent, blinded raters for the following parameters: (1) anatomic and prosthetic neck-shaft angle (NSA); (2) the shift between the anatomic and prosthetic center of rotation (COR); (3) anatomical size matching of the prosthetic humeral head; (4) the calculated Anatomic Reconstruction Score (ARS); (5) glenoid positioning; as well as (6) glenoid inclination and version. Results: While the COR was slightly but significantly positioned (p = 0.031) to be more medial in the PI approach group (3.7 ± 3.4%, range: −2.3% to 8.7%) than in the deltopectoral approach group (−0.2 ± 3.6%, range: −6.9% to 4.1%), on average, none of the remaining measured radiographic parameters significantly differed between both groups (PI approach group vs. deltopectoral group: NSA 130° vs. 127°, p = 0.57; COR supero-inferior, 2.6% vs. 1.0%, p = 0.35; COR antero-posterior, 0.9% vs. 1.7%, p = 0.57; head size supero-inferior, 97.3% vs. 98.5%, p = 0.15; head size antero-posterior, 101.1% vs. 100.6%, p = 0.54; ARS, 8.4 vs. 9.3, p = 0.13; glenoid positioning supero-inferior, 49.1% vs. 51.1%, p = 0.33; glenoid positioning antero-posterior, 49.3% vs. 50.4%, p = 0.23; glenoid inclination, 86° vs. 88°, p = 0.27; and glenoid retroversion, 91° vs. 89°, p = 0.27). Conclusions: A PI approach allows for sufficient exposure and orientation to perform rotator-cuff sparing aTSA with acceptable implant sizing and positioning in cadaveric specimens.
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Affiliation(s)
| | - Lucca Lacheta
- Arthrex GMBH, D-81249 Munich, Germany; (L.L.); (M.M.); (K.K.)
| | - Marvin Minkus
- Arthrex GMBH, D-81249 Munich, Germany; (L.L.); (M.M.); (K.K.)
| | | | - Frank Uhing
- Center for Musculoskeletal Surgery, Charité—University Medicine Berlin, Charitéplatz 1, D-10117 Berlin, Germany; (F.U.); (S.D.S.); (M.v.d.M.)
| | - Sheldon De Souza
- Center for Musculoskeletal Surgery, Charité—University Medicine Berlin, Charitéplatz 1, D-10117 Berlin, Germany; (F.U.); (S.D.S.); (M.v.d.M.)
| | - Michael van der Merwe
- Center for Musculoskeletal Surgery, Charité—University Medicine Berlin, Charitéplatz 1, D-10117 Berlin, Germany; (F.U.); (S.D.S.); (M.v.d.M.)
| | - Doruk Akgün
- Arthrex GMBH, D-81249 Munich, Germany; (L.L.); (M.M.); (K.K.)
- Correspondence: ; Tel.: +49-304-5065-2319; Fax: +49-304-5051-5905
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Moroder P, Chamberlain A, Gabriel SM, Jacofsky MC, Sengun MZ, Spenciner DB, Tokish JM, Lacheta L. Effect of Active and Passive Function of the Posterosuperior Rotator Cuff on Compensatory Muscle Loads in the Shoulder. Orthop J Sports Med 2022; 10:23259671221097062. [PMID: 35647209 PMCID: PMC9134422 DOI: 10.1177/23259671221097062] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/23/2022] [Accepted: 03/02/2022] [Indexed: 11/16/2022] Open
Abstract
Background: Irreparable posterosuperior rotator cuff (PSRC) tears have been shown to result in shoulder pain and loss of function. Purpose/Hypothesis: The purpose of this study was to determine the effect of the loss of active or passive function of the PSRC on compensatory muscle loads in the deltoid and the remaining rotator cuff. It was hypothesized that both deactivation and resection of the PSRC would result in load increases in the remaining muscles and that resection of the PSRC would result in even higher required compensatory forces than would mere deactivation. Study Design: Controlled laboratory study. Methods: A total of 7 cadaveric shoulders were tested using a biomechanical shoulder simulator with 10 independently controlled actuators for various muscles (anterior, middle, and posterior deltoid; inferior and superior subscapularis; latissimus dorsi; pectoralis major; teres minor; supraspinatus; and infraspinatus) and 3-dimensional motion tracking. The muscle loads representing the latissimus dorsi and pectoralis major were each held constant, and the remaining muscle actuator forces required to abduct the arm in the scapular plane were determined. The actuator forces corresponding with arm elevation from 20° to 65° were compared at 5° increments for 3 testing conditions: (1) intact, active PSRC; (2) intact, deactivated PSRC; and (3) resected PSRC and shoulder capsule. Results: In both the deactivated and resected states, the teres minor showed a significant increase in required muscle forces through nearly the entire tested range of arm elevation compared to the active state. This was also the case for the subscapularis but only at higher elevation angles. The deltoid demonstrated increased muscle forces of at least 1 of its subunits between 25° and 55° of elevation when comparing the deactivated state or resected state to the active state. However, through nearly the entire range of elevation, no statistically significant differences were found between the deactivated and resected states for any of the actuator loads representing muscle forces. Conclusion: The loss of active function of the PSRC led to compensatory loads on the remaining rotator cuff and deltoid, regardless of the passive presence of the PSRC as a supposed subacromial spacer. Clinical Relevance: The findings encourage the exploration of treatment procedures that mimic the active function of the PSRC when the rotator cuff itself is irreparable.
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Affiliation(s)
- Philipp Moroder
- Department of Shoulder and Elbow Surgery, Schulthess Clinic, Zurich, Switzerland
| | - Aaron Chamberlain
- Department of Orthopaedic Surgery, Washington University in St Louis, St Louis, Missouri, USA
| | | | - Marc C. Jacofsky
- Musculoskeletal Orthopedic Research and Education (MORE) Foundation, Phoenix, Arizona, USA
| | - Mehmet Z. Sengun
- DePuy Synthes Mitek Sports Medicine, Raynham, Massachusetts, USA
| | - David B. Spenciner
- DePuy Synthes Mitek Sports Medicine, Raynham, Massachusetts, USA
- Department of Biomedical Engineering, Rensselaer Polytechnic Institute, Troy, New York, USA
| | - John M. Tokish
- Department of Orthopedic Surgery, Mayo Clinic, Phoenix, Arizona, USA
| | - Lucca Lacheta
- Department of Orthopaedic Sports Medicine, Technical University of Munich, Munich, Germany
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30
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Karpinski K, Plachel F, Gerhardt C, Saier T, Tauber M, Auffarth A, Akgün D, Moroder P. Different expectations of patients and surgeons with regard to rotator cuff repair. J Shoulder Elbow Surg 2022; 31:1096-1105. [PMID: 35149203 DOI: 10.1016/j.jse.2021.12.043] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/04/2021] [Revised: 12/23/2021] [Accepted: 12/25/2021] [Indexed: 02/01/2023]
Abstract
BACKGROUND Rotator cuff lesions are a common shoulder pathology mainly affecting patients aged >50 years. This condition is accompanied by not only pain and loss of function but also impaired quality of life and psychological stress. A frequently employed treatment option is arthroscopic repair. But expectations regarding the outcome after surgery might differ between patients and surgeons and therefore lead to dissatisfaction on both sides. The aim of this study was to document patient expectations of a planned arthroscopic rotator cuff repair and compare the results with the assessment of shoulder surgeons. MATERIALS AND METHODS A total of 303 patients and 25 surgeons were involved in this study. Patients with partial- or full-thickness tear of the rotator cuff scheduled for arthroscopic repair were included in this study. Preoperatively, they were asked to fill out questionnaires inquiring sociodemographic data, scores of the underlying pathology, as well as expectations regarding the operation with regard to pain relief, gain of range of motion and strength, as well as the effect on activities of daily life, work, and sports. Furthermore, 25 surgeons were surveyed on what they think their patients expected using the same standardized questions. RESULTS Among the patients, 43.9% considered gain of range of motion to be the most important goal after rotator cuff repair, followed by pain relief (30.6%) and gain of force (13.7%). Among the surgeons, 72% believed pain relief to be the most important for their patient followed by movement (20%) and strength (8%). When asked which parameter was the most important to achieve after operation, for patients, movement was on first place, pain second, and strength third. For shoulder specialists, the ranking was pain, movement, and strength. Surgeons significantly overrated pain relief when ranking against movement compared with their patients. CONCLUSION The expectations of patients regarding their operation differ from the surgeon's assessment. Whereas gaining range of motion was more important for patients, surgeons clearly voted for pain relief. Different expectations should therefore be discussed within the pretreatment interview and taken into account when planning the right therapy. This might lead to better satisfaction on both sides.
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Affiliation(s)
| | | | | | - Tim Saier
- BG Unfallklinik Murnau, Murnau am Staffelsee, Germany
| | | | | | - Doruk Akgün
- Charité Universitätsmedizin Berlin, Berlin, Germany
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31
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Wierer G, Winkler PW, Pomwenger W, Plachel F, Moroder P, Seitlinger G. Transpatellar bone tunnels perforating the lateral or anterior cortex increase the risk of patellar fracture in MPFL reconstruction: a finite element analysis and survey of the International Patellofemoral Study Group. Knee Surg Sports Traumatol Arthrosc 2022; 30:1620-1628. [PMID: 34333671 DOI: 10.1007/s00167-021-06682-w] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/23/2021] [Accepted: 07/22/2021] [Indexed: 10/20/2022]
Abstract
PURPOSE (1) To determine applied patellar drilling techniques for medial patellofemoral ligament (MPFL) reconstruction among members of the International Patellofemoral Study Group (IPSG) and (2) to evaluate the risk of patellar fracture for various patellar bone tunnel locations based on a finite element analysis (FEA) model. METHODS In the first part of the study, an online survey on current MPFL reconstruction techniques was conducted among members of the IPSG. In the second part of the study, a three-dimensional FEA model of a healthy knee joint was created using a computed tomography scan. Patient-specific bone density was integrated into the patella, and cartilage of 3 mm thickness was modeled for the patellofemoral joint. According to the survey's results, two different types of patellar bone tunnels (bone socket and transpatellar bone tunnel) were simulated. The risk of patellar fracture was evaluated based on the fracture risk volume (FRV) obtained from the FEA. RESULTS Finite element analysis revealed that subchondral bone socket tunnel placement is associated with the lowest FRV but increased with an anterior offset (1-5 mm). Transpatellar bone tunnels violating the lateral or anterior cortex showed a higher FRV compared to bone socket, with the highest values observed when the anterior cortex was penetrated. CONCLUSION Violation of the anterior or lateral patellar cortex using transpatellar bone tunnels increased FRV compared to a subchondral patellar bone socket tunnel. In MPFL reconstruction, subchondral patellar bone socket tunnels should be considered for patellar graft fixation to avoid the risk of postoperative patellar fracture. LEVEL OF EVIDENCE Survey; Descriptive laboratory study/Level V.
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Affiliation(s)
- Guido Wierer
- Department of Orthopedics and Traumatology, Paracelsus Medical University Salzburg, Müllner Hauptstraße 48, 5020, Salzburg, Austria. .,Research Unit for Orthopaedic Sports Medicine and Injury Prevention, Institute for Sports Medicine, Alpine Medicine and Health Tourism (ISAG), UMIT, Eduard-Wallnöfer-Zentrum 1, 6060, Hall in Tirol, Austria.
| | - Philipp W Winkler
- Department for Orthopaedic Sports Medicine, Klinikum Rechts Der Isar, Technical University of Munich, Ismaninger Str. 22, 81675, Munich, Germany
| | - Werner Pomwenger
- Department of Information Technology & Systems, Salzburg University of Applied Sciences, Urstein Süd 1, 5412, Puch bei Salzburg, Austria
| | - Fabian Plachel
- Department of Orthopedics and Traumatology, Paracelsus Medical University Salzburg, Müllner Hauptstraße 48, 5020, Salzburg, Austria.,Center for Musculoskeletal Surgery, Charité -Universitatsmedizin Berlin, Augustenburgerplatz 1, 13353, Berlin, Germany
| | - Philipp Moroder
- Center for Musculoskeletal Surgery, Charité -Universitatsmedizin Berlin, Augustenburgerplatz 1, 13353, Berlin, Germany
| | - Gerd Seitlinger
- Orthofocus, Guggenbichlerstrasse 20, 5026, Salzburg, Austria
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Hohmann E, Glatt V, Tetsworth K, Bak K, Beitzel K, Bøe B, Calvo E, Di Giacomo G, Favard L, Franceschi F, Funk L, Glanzmann M, Imhoff A, Lädermann A, Levy O, Ludvigsen T, Milano G, Moroder P, Rosso C, Siebenlist S, Abrams J, Arciero R, Athwal G, Burks R, Gillespie R, Kibler B, Levine W, Mazzocca A, Millett P, Ryu R, Safran M, Sanchez-Sotelo J, Savoie FB, Sethi P, Shea K, Verma N, Warner JJ, Weber S, Wolf B. Subacromial Decompression in Patients With Shoulder Impingement With an Intact Rotator Cuff: An Expert Consensus Statement Using the Modified Delphi Technique Comparing North American to European Shoulder Surgeons. Arthroscopy 2022; 38:1051-1065. [PMID: 34655764 DOI: 10.1016/j.arthro.2021.09.031] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/19/2021] [Revised: 09/28/2021] [Accepted: 09/28/2021] [Indexed: 02/02/2023]
Abstract
PURPOSE To perform a Delphi consensus for the treatment of patients with shoulder impingement with intact rotator cuff tendons, comparing North American with European shoulder surgeon preferences. METHODS Nineteen surgeons from North America (North American panel [NAP]) and 18 surgeons from Europe (European panel [EP]) agreed to participate and answered 10 open-ended questions in rounds 1 and 2. The results of the first 2 rounds were used to develop a Likert-style questionnaire for round 3. If agreement at round 3 was ≤60% for an item, the results were carried forward into round 4. For round 4, the panel members outside consensus (>60%, <80%) were contacted and asked to review their response. The level of agreement and consensus was defined as 80%. RESULTS There was agreement on the following items: impingement is a clinical diagnosis; a combination of clinical tests should be used; other pain generators must be excluded; radiographs must be part of the workup; magnetic resonance imaging is helpful; the first line of treatment should always be physiotherapy; a corticosteroid injection is helpful in reducing symptoms; indication for surgery is failure of nonoperative treatment for a minimum of 6 months. The NAP was likely to routinely prescribe nonsteroidal anti-inflammatory drugs (NAP 89%; EP 35%) and consider steroids for impingement (NAP 89%; EP 65%). CONCLUSIONS Consensus was achieved for 16 of the 71 Likert items: impingement is a clinical diagnosis and a combination of clinical tests should be used. The first line of treatment should always be physiotherapy, and a corticosteroid injection can be helpful in reducing symptoms. The indication for surgery is failure of no-operative treatment for a minimum of 6 months. The panel also agreed that subacromial decompression is a good choice for shoulder impingement if there is evidence of mechanical impingement with pain not responding to nonsurgical measures. LEVEL OF EVIDENCE Level V, expert opinion.
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Affiliation(s)
- Erik Hohmann
- Department of Orthopaedic Surgery and Sportsmedicine, Valiant Clinic/Houston Methodist, Dubai, United Arab Emirates.
| | - Vaida Glatt
- University of Texas Health Science Centre, San Antonio, Texas, U.S.A
| | - Kevin Tetsworth
- Department of Orthopaedic Surgery, Royal Brisbane Hospital, Herston, Australia; Orthopaedic Research Centre of Australia, Sydney, Australia
| | | | - Klaus Bak
- Adeas Hospitals Skodsborg&Parken, Copenhagen, Denmark.
| | | | - Berte Bøe
- Division of Orthopaedic Surgery, Oslo University Hospital, Norway.
| | - Emilio Calvo
- Department of Orthopaedic Surgery and Traumatology, Universidad Autonoma, Madrid, Spain.
| | | | - Luc Favard
- Tours University Hospital, University of Tours, France.
| | | | - Lennard Funk
- Upper Limb Unit, Wrightington Hospital, Wrightington, UK.
| | | | - Andreas Imhoff
- Department of Orthopaedic Sports Medicine, Technical University Munich, Germany.
| | - Alexandre Lädermann
- Division of Orthopaedics and Trauma Surgery, La Tour Hospital, Meyrin, Switzerland.
| | - Ofer Levy
- Reading Shoulder Unit, Berkshire Independent Hospital, Reading, Berkshire, United Kingdom; The Israeli Shoulder Institute, Faculty of Health Sciences, Ben-Gurion University, Beer Sheva, Israel.
| | - Tom Ludvigsen
- Division of Orthopaedic Surgery, Oslo University Hospital, Norway.
| | - Giuseppe Milano
- Unit of Orthopaedics and Traumatology, University of Brescia, Italy.
| | - Philipp Moroder
- Department of Shoulder and Elbow Surgery, Centrum for Muskuloskeletale Chirurgie, Charite Universitätsmedizin Berlin, Germany.
| | | | - Sebastian Siebenlist
- Department of Orthopaedic Sports Medicine, Technical University Munich, Germany.
| | - Jeffrey Abrams
- Princeton Orthopeadic Associates Princeton, New Jersey , USA.
| | - Robert Arciero
- Department of Orthopaedic Surgery, UCONN Health, Farmington, CT, USA.
| | - George Athwal
- Roth/McFarlane Hand&Upper limb Centre, St Joseph's Health Care, London, Ontario, Canada.
| | | | - Robert Gillespie
- Department of Orthopaedics Case Western Reserve University, University Hospital Cleveland Medical Center, Cleveland, Ohio, USA.
| | - Ben Kibler
- Lexington Orthopaedic Clinic, Sports Medicine Center Lexington, Kentucky, USA.
| | - William Levine
- Department of Orthopaedic Surgery, Columbia University Medical Center New York, NY, USA.
| | - Augustus Mazzocca
- Department of Orthopaedic Surgery, UCONN Health, Farmington, CT, USA.
| | | | - Richard Ryu
- The Ryu Hurvitz Orthopaedic Clinic, Santa Barbara, California, USA.
| | - Marc Safran
- Department of Orthopaedic Surgery, Stanford University Stanford, CA, USA.
| | | | - Felix Buddy Savoie
- Department of Orthopaedic Surgery, Tulane University New Orleans, LA, USA.
| | - Paul Sethi
- The ONS Sports and Shoulder Service, Greenwich, CT, USA.
| | - Kevin Shea
- Department of Orthopaedic Surgery, UCONN Health, Farmington, CT, USA.
| | - Nikhil Verma
- Midwest Orthopaedics at Rush University, Chicago, IL, USA.
| | - Jon Jp Warner
- Massachusetts General Hospital, The Boston Shoulder Institute Boston, MA USA.
| | | | - Brian Wolf
- Department of Orthopaedic Surgery, University of Iowa, Iowa City, IA USA.
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Moroder P, Urvoy M, Raiss P, Werthel JD, Akgün D, Chaoui J, Siegert P. Patient Posture Affects Simulated ROM in Reverse Total Shoulder Arthroplasty: A Modeling Study Using Preoperative Planning Software. Clin Orthop Relat Res 2022; 480:619-631. [PMID: 34669618 PMCID: PMC8846281 DOI: 10.1097/corr.0000000000002003] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/21/2021] [Accepted: 09/16/2021] [Indexed: 01/31/2023]
Abstract
BACKGROUND Component selection and placement in reverse total shoulder arthroplasty (RTSA) is still being debated. Recently, scapulothoracic orientation and posture have emerged as relevant factors when planning an RTSA. However, the degree to which those parameters may influence ROM and whether modifiable elements of implant configuration may be helpful in improving ROM among patients with different postures have not been thoroughly studied, and modeling them may be instructive. QUESTIONS/PURPOSES Using a dedicated expansion of a conventional preoperative planning software, we asked: (1) How is patient posture likely to influence simulated ROM after virtual RTSA implantation? (2) Do changes in implant configuration, such as humeral component inclination and retrotorsion, or glenoid component size and centricity improve the simulated ROM after virtual RTSA implantation in patients with different posture types? METHODS In a computer laboratory study, available whole-torso CT scans of 30 patients (20 males and 10 females with a mean age of 65 ± 17 years) were analyzed to determine the posture type (Type A, upright posture, retracted scapulae; Type B, intermediate; Type C, kyphotic posture with protracted scapulae) based on the measured scapula internal rotation as previously described. The measurement of scapular internal rotation, which defines these posture types, was found to have a high intraclass correlation coefficient (0.87) in a previous study, suggesting reliability of the employed classification. Three shoulder surgeons each independently virtually implanted a short, curved, metaphyseal impaction stem RTSA in each patient using three-dimensional (3D) preoperative surgical planning software. Modifications based on the original component positioning were automatically generated, including different humeral component retrotorsion (0°, 20°, and 40° of anatomic and scapular internal rotation) and neck-shaft angle (135°, 145°, and 155°) as well as glenoid component configuration (36-mm concentric, 36-mm eccentric, and 42-mm concentric), resulting in 3720 different RTSA configurations. For each configuration, the maximum potential ROM in different planes was determined by the software, and the effect of different posture types was analyzed by comparing subgroups. RESULTS Irrespective of the RTSA implant configuration, the posture types had a strong effect on the calculated ROM in all planes of motion, except for flexion. In particular, simulated ROM in patients with Type C compared with Type A posture demonstrated inferior adduction (median 5° [interquartile range -7° to 20°] versus 15° [IQR 7° to 22°]; p < 0.01), abduction (63° [IQR 48° to 78°] versus 72° [IQR 63° to 82°]; p < 0.01), extension (4° [IQR -8° to 12°] versus 19° [IQR 8° to 27°]; p < 0.01), and external rotation (7° [IQR -5° to 22°] versus 28° [IQR 13° to 39°]; p < 0.01). Lower retrotorsion and a higher neck-shaft angle of the humeral component as well as a small concentric glenosphere resulted in worse overall ROM in patients with Type C posture, with severe restriction of motion in adduction, extension, and external rotation to below 0°. CONCLUSION Different posture types affect the ROM after simulated RTSA implantation, regardless of implant configuration. An individualized choice of component configuration based on scapulothoracic orientation seems to attenuate the negative effects of posture Type B and C. Future studies on ROM after RTSA should consider patient posture and scapulothoracic orientation. CLINICAL RELEVANCE In patients with Type C posture, higher retrotorsion, a lower neck-shaft angle, and a larger or inferior eccentric glenosphere seem to be advantageous.
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Affiliation(s)
- Philipp Moroder
- Department for Shoulder and Elbow Surgery, Charité - Universitätsmedizin, Berlin, Germany
| | | | - Patric Raiss
- Orthopädische Chirurgie München, Munich, Germany
| | - Jean-David Werthel
- Hôpital Ambroise Paré, Boulogne-Billancourt, France
- Ramsay Générale de Santé, Clinique La Montagne, Courbevoie, France
| | - Doruk Akgün
- Department for Shoulder and Elbow Surgery, Charité - Universitätsmedizin, Berlin, Germany
| | | | - Paul Siegert
- Department for Shoulder and Elbow Surgery, Charité - Universitätsmedizin, Berlin, Germany
- 1st Orthopaedic Department, Orthopaedic Hospital Speising, Vienna, Austria
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Moroder P, Kathi T, Lacheta L, Karpinski K, Paksoy A, Akgün D. Arthroscopic Bone Block Cerclage Technique Using a Tricortical Scapular Spine Autograft for Glenoid Reconstruction in Patients With Anterior Shoulder Instability. Arthrosc Tech 2022; 11:e379-e383. [PMID: 35256979 PMCID: PMC8897580 DOI: 10.1016/j.eats.2021.11.004] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/04/2021] [Accepted: 11/08/2021] [Indexed: 02/03/2023] Open
Abstract
In the treatment of anterior shoulder instability with glenoid bone loss, free bone graft transfers have proven to be a viable anatomic alternative to the commonly performed, nonanatomic Latarjet procedure. Implant-free fixation of the free bone grafts, in particular, has rendered excellent short- and long-term results. However, a drawback remains the source of the graft. We describe an arthroscopic bone block cerclage technique using a tricortical scapular spine autograft, which provides an anatomic arthroscopic glenoid reconstruction with the combined benefit of sparing the subscapularis, metal-free fixation, and intraregional donor site for autograft harvesting.
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Affiliation(s)
| | | | | | | | | | - Doruk Akgün
- Address correspondence to Doruk Akgün, M.D., Center for Musculoskeletal Surgery, Charité - University Medicine Berlin, Augustenburger Platz 1, Berlin 13353, Germany.
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Kilgus S, Eder C, Siegert P, Moroder P, Zimmermann E, Thiele K. The inter-individual anatomical variation of the trochlear notch as a predisposition for simple elbow dislocation. Arch Orthop Trauma Surg 2022; 142:3405-3413. [PMID: 34953138 PMCID: PMC9522744 DOI: 10.1007/s00402-021-04284-2] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/08/2021] [Accepted: 11/27/2021] [Indexed: 11/25/2022]
Abstract
PURPOSE Besides the multi-layered capsule-ligamentous complex of the elbow joint the high bony congruence in the ulnohumeral joint contributes to elbow stability. Therefore, we assume that specific anatomical configurations of the trochlear notch predispose to dislocation. In case of ligamentous elbow dislocation both conservative and surgical treatment is possible without a clear treatment algorithm. Findings of constitutional bony configurations could help deciding for the best treatment option. METHODS In this retrospective matched-pair analysis we compared MRI imaging from patients sustaining a primary traumatic elbow dislocation (instability group) with patients suffering from chronic lateral epicondylitis (control group), treated between 2009 and 2019. Two independent observers measured different anatomical landmarks of the trochlear notch in a multiplanar reconstructed standardized sagittal trochlear plane (SSTP). Primarily, opening angle and relative depth of the trochlear notch were determined. After adjustment to the proximal ulnar rim in the SSTP, coronoid and olecranon angle, the articular angle as well as the ratio of the tip heights of the trochlear notch were measured. RESULTS We compared 34 patients in the instability group (age 48 ± 14 years, f/m 19/15) with 34 patients in the control group (age 47 ± 16 years, f/m 19/15). Instability group showed a significantly larger opening angle (94.1° ± 6.9° vs. 88.5° ± 6.9°, p = 0.0002), olecranon angle (60.9° ± 5.3° vs. 56.1° ± 5.1°, p < 0.0001) and articular angle (24.7° ± 6.4° vs. 22.3° ± 5.8°, p = 0.02) compared to the control group. Measuring the height from the coronoid (ch) and olecranon (oh) tip also revealed a significantly larger tip ratio (tr = ch/oh) in the instability group (2.7 ± 0.8 vs. 2.2 ± 0.5, p < 0.0001). The relative depth (61.0% ± 8.3% vs. 62.7% ± 6.0%, p = 0.21) of the trochlear notch as well as the coronoid angle (32.8° ± 4.5° vs. 31.7° ± 5.2°, p = 0.30) showed no significant difference in the instability group compared to the control group. The interrater reliability of all measurements was between 0.83 and 0.94. CONCLUSION MRI of patients with elbow dislocation show that there seems to be a bony anatomical predisposition. According to the results, it seems reasonable to include predisposing bony factors in the decision-making process when surgical stabilization and conservative treatment is possible. Further biomechanical studies should prove these assumptions to generate critical bony values helping surgeons with decision making. LEVEL OF EVIDENCE III.
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Affiliation(s)
- Sofia Kilgus
- Center for Musculoskeletal Surgery, Charité-University Medicine Berlin, Augustenburger Platz 1, Berlin, 13353 Germany
| | - Christian Eder
- Center for Musculoskeletal Surgery, Charité-University Medicine Berlin, Augustenburger Platz 1, Berlin, 13353 Germany
| | - Paul Siegert
- Center for Musculoskeletal Surgery, Charité-University Medicine Berlin, Augustenburger Platz 1, Berlin, 13353 Germany ,Orthopedic Hospital Speising, Speisinger Street 109, 1130 Vienna, Austria
| | - Philipp Moroder
- Center for Musculoskeletal Surgery, Charité-University Medicine Berlin, Augustenburger Platz 1, Berlin, 13353 Germany
| | - Elke Zimmermann
- Department of Radiology, Charité-University Medicine Berlin, Chariteplatz 1, Berlin, 10117 Germany
| | - Kathi Thiele
- Center for Musculoskeletal Surgery, Charité-University Medicine Berlin, Augustenburger Platz 1, Berlin, 13353 Germany
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Akgün D, Wiethölter M, Siegert P, Danzinger V, Minkus M, Braun KF, Moroder P. The role of serum C-reactive protein in the diagnosis of periprosthetic shoulder infection. Arch Orthop Trauma Surg 2022; 142:1715-1721. [PMID: 33515325 PMCID: PMC9296386 DOI: 10.1007/s00402-021-03779-2] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/16/2020] [Accepted: 01/06/2021] [Indexed: 12/19/2022]
Abstract
INTRODUCTION There is a paucity of literature regarding serum C-reactive protein (CRP) in the evaluation of a shoulder periprosthetic joint infection (PJI). The purpose of the current study was to establish cutoff values for diagnosing shoulder PJI and evaluate the influence of the type of infecting microorganism and the classification subgroups according to last proposed International Consensus Meeting (ICM) criteria on the CRP level. MATERIALS AND METHODS A retrospective analysis of all 136 patients, who underwent septic or aseptic revision shoulder arthroplasty in our institution between January 2010 and December 2019, was performed. Shoulder PJI was defined according to the last proposed definition criteria of the ICM. Serum CRP levels were compared between infected and non-infected cases, between infection subgroups, as well as between different species of infecting microorganisms. A receiver-operating characteristic (ROC) analysis was performed to display sensitivity and specificity of serum CRP level for shoulder PJI. RESULTS A total of 52 patients (38%) were classified as infected, 18 meeting the criteria for definitive infection, 26 for probable infection and 8 for possible infection. According to the ROC curve, an optimized serum CRP threshold of 7.2 mg/l had a sensitivity of 69% and specificity of 74% (area under curve = 0.72). Patients with definitive infection group demonstrated significantly higher median serum CRP levels (24.3 mg/l), when compared to probable, possible infection groups and PJI unlikely group (8 mg/l, 8.3 mg/l, 3.6 mg/l, respectively, p < 0.05). The most common isolated microorganism was Cutibacterium acnes in 25 patients (48%) followed by coagulase-negative staphylococci (CNS) in 20 patients (39%). Patients with a PJI caused by high-virulent microorganisms had a significantly higher median serum CRP level compared to patients with PJI caused by low-virulent microorganisms (48 mg/l vs. 11.3 mg/l, p = 0.04). CONCLUSIONS Serum CRP showed a low sensitivity and specificity for the diagnosis of shoulder PJI, even applying cutoffs optimized by receiver-operating curve analysis. Low-virulent microorganisms and patients with probable and possible infections are associated with lower CRP levels compared to patients with definitive infection and infections caused by high-virulent microorganisms. LEVEL OF EVIDENCE Diagnostic Level III.
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Affiliation(s)
- Doruk Akgün
- Department for Shoulder and Elbow Surgery, Center for Musculoskeletal Surgery, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Charité–University Medicine Berlin, Corporate Member of Freie Universität Berlin, Augustenburger Platz 1, 13353 Berlin, Germany
| | - Mats Wiethölter
- Department for Shoulder and Elbow Surgery, Center for Musculoskeletal Surgery, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Charité–University Medicine Berlin, Corporate Member of Freie Universität Berlin, Augustenburger Platz 1, 13353 Berlin, Germany
| | - Paul Siegert
- Department for Shoulder and Elbow Surgery, Center for Musculoskeletal Surgery, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Charité–University Medicine Berlin, Corporate Member of Freie Universität Berlin, Augustenburger Platz 1, 13353 Berlin, Germany
| | - Victor Danzinger
- Department for Shoulder and Elbow Surgery, Center for Musculoskeletal Surgery, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Charité–University Medicine Berlin, Corporate Member of Freie Universität Berlin, Augustenburger Platz 1, 13353 Berlin, Germany
| | - Marvin Minkus
- Department for Shoulder and Elbow Surgery, Center for Musculoskeletal Surgery, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Charité–University Medicine Berlin, Corporate Member of Freie Universität Berlin, Augustenburger Platz 1, 13353 Berlin, Germany
| | - Karl Friedrich Braun
- Department for Shoulder and Elbow Surgery, Center for Musculoskeletal Surgery, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Charité–University Medicine Berlin, Corporate Member of Freie Universität Berlin, Augustenburger Platz 1, 13353 Berlin, Germany
| | - Philipp Moroder
- Department for Shoulder and Elbow Surgery, Center for Musculoskeletal Surgery, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Charité–University Medicine Berlin, Corporate Member of Freie Universität Berlin, Augustenburger Platz 1, 13353 Berlin, Germany
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Werthel JD, Boux de Casson F, Walch G, Gaudin P, Moroder P, Sanchez-Sotelo J, Chaoui J, Burdin V. Three-dimensional muscle loss assessment: a novel computed tomography-based quantitative method to evaluate rotator cuff muscle fatty infiltration. J Shoulder Elbow Surg 2022; 31:165-174. [PMID: 34478865 DOI: 10.1016/j.jse.2021.07.029] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/27/2021] [Revised: 07/15/2021] [Accepted: 07/26/2021] [Indexed: 02/01/2023]
Abstract
BACKGROUND Rotator cuff fatty infiltration (FI) is one of the most important parameters to predict the outcome of certain shoulder conditions. The primary objective of this study was to define a new computed tomography (CT)-based quantitative 3-dimensional (3D) measure of muscle loss (3DML) based on the rationale of the 2-dimensional (2D) qualitative Goutallier score. The secondary objective of this study was to compare this new measurement method to traditional 2D qualitative assessment of FI according to Goutallier et al and to a 3D quantitative measurement of fatty infiltration (3DFI). MATERIALS AND METHODS 102 CT scans from healthy shoulders (46) and shoulders with cuff tear arthropathy (21), irreparable rotator cuff tears (18), and primary osteoarthritis (17) were analyzed by 3 experienced shoulder surgeons for subjective grading of fatty infiltration according to Goutallier, and their rotator cuff muscles were manually segmented. Quantitative 3D measurements of fatty infiltration (3DFI) were completed. The volume of muscle fibers without intramuscular fat was then calculated for each rotator cuff muscle and normalized to the patient's scapular volume to account for the effect of body size (NVfibers). 3D muscle mass (3DMM) was calculated by dividing the NVfibers value of a given muscle by the mean expected volume in healthy shoulders. 3D muscle loss (3DML) was defined as 1 - (3DMM). The correlation between Goutallier grading, 3DFI, and 3DML was compared using a Spearman rank correlation. RESULTS Interobserver reliability for the traditional 2D Goutallier grading was moderate for the infraspinatus (ISP, 0.42) and fair for the supraspinatus (SSP, 0.38), subscapularis (SSC, 0.27) and teres minor (TM, 0.27). 2D Goutallier grading was found to be significantly and highly correlated with 3DFI (SSP, 0.79; ISP, 0.83; SSC, 0.69; TM, 0.45) and 3DML (SSP, 0.87; ISP, 0.85; SSC, 0.69; TM, 0.46) for all 4 rotator cuff muscles (P < .0001). This correlation was significantly higher for 3DML than for the 3DFI for SSP only (P = .01). The mean values of 3DFI and 3DML were 0.9% and 5.3% for Goutallier 0, 2.9% and 25.6% for Goutallier 1, 11.4% and 49.5% for Goutallier 2, 20.7% and 59.7% for Goutallier 3, and 29.3% and 70.2% for Goutallier 4, respectively. CONCLUSION The Goutallier score has been helping surgeons by using 2D CT scan slices. However, this grading is associated with suboptimal interobserver agreement. The new measures we propose provide a more consistent assessment that correlates well with Goutallier's principles. As 3DML measurements incorporate atrophy and fatty infiltration, they could become a very reliable index for assessing shoulder muscle function. Future algorithms capable of automatically calculating the 3DML of the cuff could help in the decision process for cuff repair and the choice of anatomic or reverse shoulder arthroplasty.
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Affiliation(s)
- Jean-David Werthel
- Hôpital Ambroise Paré, Boulogne-Billancourt, France; IMT Atlantique, LaTIM INSERM U1101, Brest, France.
| | | | - Gilles Walch
- Centre Orthopédique Santy, Lyon, France; Ramsay Générale de Santé, Hôpital Privé Jean Mermoz, Lyon, France
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Thiele K, Akgün D, Al-Mutaresh F, Stöckle U, Lacheta L, Moroder P. Technical Note: Arthroscopic Resection of Snapping, Interponating Annular Ligament of the Elbow. Z Orthop Unfall 2021. [PMID: 34937101 DOI: 10.1055/a-1658-1038] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
The indication for surgical treatment of lateral snapping elbow syndrome is recurrent joint blockage in combination with pain of the affected elbow joint. Different parts of the lateral synovial capsule sleeve complex, including the annular ligament itself, a hypertrophic synovial fold, or meniscus-like soft tissue interposition can lead to painful entrapment. Surgical treatment options can include an arthroscopic or open procedure. The aim of this technical note is to provide a step-by-step illustration of the authors' preferred arthroscopic approach with a comprehensive review of literature on clinical outcome.
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Affiliation(s)
- Kathi Thiele
- Centrum für Muskuloskeletale Chirurgie, Charité Universitätsmedizin Berlin, Germany
| | - Doruk Akgün
- Centrum für Muskuloskeletale Chirurgie, Charité Universitätsmedizin Berlin, Germany
| | - Faisal Al-Mutaresh
- Centrum für Muskuloskeletale Chirurgie, Charité Universitätsmedizin Berlin, Germany
| | - Ulrich Stöckle
- Centrum für Muskuloskeletale Chirurgie, Charité Universitätsmedizin Berlin, Germany
| | - Lucca Lacheta
- Centrum für Muskuloskeletale Chirurgie, Charité Universitätsmedizin Berlin, Germany
| | - Philipp Moroder
- Centrum für Muskuloskeletale Chirurgie, Charité Universitätsmedizin Berlin, Germany
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Rüttershoff K, Akgün D, Moroder P. Joint Preserving Treatment of Chronic Locked Posterior Shoulder Dislocation by Means of Combined Humeral Allograft Reconstruction and Posterior Glenoid Autograft Augmentation. Z Orthop Unfall 2021. [PMID: 34763357 DOI: 10.1055/a-1651-0943] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
Chronic locked posterior shoulder dislocations are challenging to treat and often warrant total shoulder arthroplasty. While joint preserving treatment is preferable in young patients, surgical techniques to treat this pathology have rarely been described in the literature. This technical note presents the treatment of a 30-year-old male patient with a chronic locked posterior shoulder dislocation by means of combined humeral allograft reconstruction and posterior glenoid autograft augmentation. Restoration of the spheric humeral head surface was obtained using a fresh-frozen femoral allograft fixed with two reabsorbable screws. Due to the intraoperatively persistent posterior instability after humeral reconstruction, the posterior glenoid was augmented with a tricortical iliac crest autograft, which was fixed with two metal screws. This treatment strategy resulted in a full range of motion and a centered stable shoulder joint at one-year follow-up. Therefore, the procedure of segmental reconstruction of the humeral head with a fresh-frozen allograft combined with a posterior glenoid augmentation with an iliac crest bone autograft is a joint-preserving treatment alternative to shoulder arthroplasty in young patients when humeral head reconstruction alone does not suffice.
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Affiliation(s)
- Katja Rüttershoff
- Centrum für Muskuloskeletale Chirurgie, Charité - Universitätsmedizin Berlin CVK, Berlin, Germany
| | - Doruk Akgün
- Centrum für Muskuloskeletale Chirurgie, Charité - Universitätsmedizin Berlin CVK, Berlin, Germany
| | - Philipp Moroder
- Centrum für Muskuloskeletale Chirurgie, Charité - Universitätsmedizin Berlin CVK, Berlin, Germany
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Moroder P. Response to Bellringer et al regarding: Neer Award 2019: Latarjet procedure vs. iliac crest bone graft transfer for treatment of anterior shoulder instability with glenoid bone loss: a prospective randomized trial. J Shoulder Elbow Surg 2021; 30:e541-e542. [PMID: 33940187 DOI: 10.1016/j.jse.2021.04.018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/31/2021] [Accepted: 04/04/2021] [Indexed: 02/01/2023]
Affiliation(s)
- Philipp Moroder
- Department for Shoulder and Elbow Surgery, Center for Musculoskeletal Surgery, Campus Virchow, Charité-Universitaetsmedizin Berlin, Berlin, Germany.
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Nevermann N, Wiering L, Wu H, Moroder P, Brandl A, Globke B, Krenzien F, Raschzok N, Schöning W, Lurje G, Öllinger R, Schmelzle M, Pratschke J, Ritschl PV. Transplantation programs facing lack of empirical evidence on SARS-CoV-2 vaccination: A society recommendation consensus update. Transpl Infect Dis 2021; 23:e13696. [PMID: 34288294 PMCID: PMC8420432 DOI: 10.1111/tid.13696] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2021] [Revised: 06/30/2021] [Accepted: 07/05/2021] [Indexed: 01/11/2023]
Abstract
BACKGROUND Since phase III trials for the most prominent vaccines excluded immunocompromised or immunosuppressed patients, data on safety and efficacy of SARS-CoV-2 vaccines for recipients of solid organ transplantations are scarce. AIMS Our study offers a synthesis of expert opinions aligned with available data addressing key questions of the clinical management of SARS-CoV-2 vaccinations for transplant patients. METHOD An online research was performed retrieving available recommendations by national and international transplantation organizations and state institutions on SARS-CoV2 vaccination management for transplant recipients. RESULTS Eleven key statements were identified from recommendations by 18 national and international societies, and consensus for the individual statements was evaluated by means of the Society Recommendation Consensus score. The highest consensus level (SRC A) was found for prioritized access to vaccination for transplant patients despite anticipation of a weakened immune response. All currently authorized vaccines can be considered safe for transplant patients (SRC A). The handling of immunosuppressive medication, the timely management of vaccines, and other aspects were aligned with available expert opinions. CONCLUSION Expert consensus can be determined for crucial aspects of the implementation of SARS-CoV-2 vaccination programs. We hereby offer a tool for immediate decision-making until empirical data becomes available.
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Affiliation(s)
- Nora Nevermann
- Department of Surgery, Charité - Universitätsmedizin Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany
| | - Leke Wiering
- Department of Surgery, Charité - Universitätsmedizin Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany
| | - Helen Wu
- Department of Surgery, Charité - Universitätsmedizin Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany
| | - Philipp Moroder
- Department for Shoulder and Elbow Surgery, Center for Musculoskeletal Surgery, Charité - Universitätsmedizin Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany
| | - Andreas Brandl
- Digestive Unit, Champalimaud Foundation, Lisbon, Portugal
| | - Brigitta Globke
- Department of Surgery, Charité - Universitätsmedizin Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany
| | - Felix Krenzien
- Department of Surgery, Charité - Universitätsmedizin Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany
| | - Nathanael Raschzok
- Department of Surgery, Charité - Universitätsmedizin Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany
| | - Wenzel Schöning
- Department of Surgery, Charité - Universitätsmedizin Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany
| | - Georg Lurje
- Department of Surgery, Charité - Universitätsmedizin Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany
| | - Robert Öllinger
- Department of Surgery, Charité - Universitätsmedizin Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany
| | - Moritz Schmelzle
- Department of Surgery, Charité - Universitätsmedizin Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany
| | - Johann Pratschke
- Department of Surgery, Charité - Universitätsmedizin Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany
| | - Paul Viktor Ritschl
- Department of Surgery, Charité - Universitätsmedizin Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany.,Clinician Scientist Program, Berlin Institute of Health (BIH), Berlin, Germany
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Barcia AM, Makovicka JL, Spenciner DB, Chamberlain AM, Jacofsky MC, Gabriel SM, Moroder P, von Rechenberg B, Sengun MZ, Tokish JM. Scapular motion in the presence of rotator cuff tears: a systematic review. J Shoulder Elbow Surg 2021; 30:1679-1692. [PMID: 33540119 DOI: 10.1016/j.jse.2020.12.012] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/27/2020] [Revised: 11/28/2020] [Accepted: 12/05/2020] [Indexed: 02/01/2023]
Abstract
BACKGROUND Rotator cuff tears (RCTs) remain a significant source of pain and disability in the shoulder. Although much work has been done in the study of the effects of rotator cuff tears on glenohumeral joint motion, much less has been done in understanding the effect of rotator cuff tearing on scapular motion or activation. It remains unknown whether scapular dyskinesis is causative or adaptive. The purpose of this study was to systematically review the literature to determine the relationship between rotator cuff tear presence and size on scapular motion, and if rotator cuff repair restored normal motion. METHODS A systematic review using PRISMA guidelines was accomplished to include all studies with biomechanical or clinical outcomes of scapular motion in the presence of RCTs. Studies were excluded if they involved shoulder arthroplasty, rotator cuff tendinopathy, or shoulder impingement without an RCT. From 530 initial references, 42 manuscripts were selected for full review and cross referenced. All studies were evaluated for inclusion and exclusion criteria. RESULTS Sixteen studies including 335 rotator cuff tears were included in the final review. There were several findings of interest in the literature. First, although all studies demonstrated scapular dyskinesis, they did not report a consistent pattern of motion in the presence of an RCT. In general, scapular posterior tilt was decreased, and scapular upward rotation was increased, especially in large tears, but the literature was unclear as to whether this was a result of the RCT or an adaptive attempt to maintain elevation. Larger RCTs resulted in more pronounced scapular dysfunction, but there was significant variability within studies. Further, dyskinesis was confounded by pain with more abnormal movement in symptomatic vs. asymptomatic RCTs, the latter of which were not different from normal healthy controls. Four studies addressed the effect of RCT on scapular mechanics and found that repair consistently improved it compared to the normal side, but the time to normalization varied between 5 months and 2 years. CONCLUSION Scapular motion is abnormal in the presence of an RCT, but the literature is inconsistent regarding a universally affected variable or consistent degree of scapular dysfunction in this setting. Furthermore, it remains unknown which changes are adaptive vs. pathologic. Understanding the relationship between rotator cuff tearing and scapular dyskinesis will require better biomechanical models that consider scapular dyskinesis in their design.
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Affiliation(s)
| | | | | | - David B Spenciner
- DePuy Synthes Mitek Sports Medicine, Raynham, MA, USA; Department of Biomedical Engineering, Rensselaer Polytechnic Institute, Troy, NY, USA
| | - Aaron M Chamberlain
- Department of Orthopaedic Surgery, Washington University in St Louis, St. Louis, MO, USA
| | - Marc C Jacofsky
- Musculoskeletal Orthopedic Research and Education (MORE) Foundation, Phoenix, AZ, USA
| | | | | | | | | | - John M Tokish
- Department of Orthopedics, Mayo Clinic, Phoenix, AZ, USA.
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Klatte-Schulz F, Bormann N, Voss I, Melzer J, Schmock A, Bucher CH, Thiele K, Moroder P, Haffner-Luntzer M, Ignatius A, Duda GN, Wildemann B. Bursa-Derived Cells Show a Distinct Mechano-Response to Physiological and Pathological Loading in vitro. Front Cell Dev Biol 2021; 9:657166. [PMID: 34136480 PMCID: PMC8201779 DOI: 10.3389/fcell.2021.657166] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2021] [Accepted: 04/09/2021] [Indexed: 11/13/2022] Open
Abstract
The mechano-response of highly loaded tissues such as bones or tendons is well investigated, but knowledge regarding the mechano-responsiveness of adjacent tissues such as the subacromial bursa is missing. For a better understanding of the physiological role of the bursa as a friction-reducing structure in the joint, the study aimed to analyze whether and how bursa-derived cells respond to physiological and pathological mechanical loading. This might help to overcome some of the controversies in the field regarding the role of the bursa in the development and healing of shoulder pathologies. Cells of six donors seeded on collagen-coated silicon dishes were stimulated over 3 days for 1 or 4 h with 1, 5, or 10% strain. Orientation of the actin cytoskeleton, YAP nuclear translocation, and activation of non-muscle myosin II (NMM-II) were evaluated for 4 h stimulations to get a deeper insight into mechano-transduction processes. To investigate the potential of bursa-derived cells to adapt their matrix formation and remodeling according to mechanical loading, outcome measures included cell viability, gene expression of extracellular matrix and remodeling markers, and protein secretions. The orientation angle of the actin cytoskeleton increased toward a more perpendicular direction with increased loading and lowest variations for the 5% loading group. With 10% tension load, cells were visibly stressed, indicated by loss in actin density and slightly reduced cell viability. A significantly increased YAP nuclear translocation occurred for the 1% loading group with a similar trend for the 5% group. NMM-II activation was weak for all stimulation conditions. On the gene expression level, only the expression of TIMP2 was down-regulated in the 1 h group compared to control. On the protein level, collagen type I and MMP2 increased with higher/longer straining, respectively, whereas TIMP1 secretion was reduced, resulting in an MMP/TIMP imbalance. In conclusion, this study documents for the first time a clear mechano-responsiveness in bursa-derived cells with activation of mechano-transduction pathways and thus hint to a physiological function of mechanical loading in bursa-derived cells. This study represents the basis for further investigations, which might lead to improved treatment options of subacromial bursa-related pathologies in the future.
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Affiliation(s)
- Franka Klatte-Schulz
- Julius Wolff Institute, Berlin Institute of Health at Charité - Universitätsmedizin Berlin, Berlin, Germany.,BIH Center for Regenerative Therapies (BCRT), Berlin Institute of Health at Charité - Universitätsmedizin Berlin, Berlin, Germany
| | - Nicole Bormann
- Julius Wolff Institute, Berlin Institute of Health at Charité - Universitätsmedizin Berlin, Berlin, Germany.,BIH Center for Regenerative Therapies (BCRT), Berlin Institute of Health at Charité - Universitätsmedizin Berlin, Berlin, Germany
| | - Isabel Voss
- Julius Wolff Institute, Berlin Institute of Health at Charité - Universitätsmedizin Berlin, Berlin, Germany
| | - Josephine Melzer
- Julius Wolff Institute, Berlin Institute of Health at Charité - Universitätsmedizin Berlin, Berlin, Germany
| | - Aysha Schmock
- Julius Wolff Institute, Berlin Institute of Health at Charité - Universitätsmedizin Berlin, Berlin, Germany.,BIH Center for Regenerative Therapies (BCRT), Berlin Institute of Health at Charité - Universitätsmedizin Berlin, Berlin, Germany
| | - Christian H Bucher
- Julius Wolff Institute, Berlin Institute of Health at Charité - Universitätsmedizin Berlin, Berlin, Germany.,BIH Center for Regenerative Therapies (BCRT), Berlin Institute of Health at Charité - Universitätsmedizin Berlin, Berlin, Germany
| | - Kathi Thiele
- Center for Musculoskeletal Surgery, Charité - Universitätsmedizin Berlin, Berlin, Germany
| | - Philipp Moroder
- Center for Musculoskeletal Surgery, Charité - Universitätsmedizin Berlin, Berlin, Germany
| | | | - Anita Ignatius
- Institute of Orthopaedic Research and Biomechanics, Ulm University, Ulm, Germany
| | - Georg N Duda
- Julius Wolff Institute, Berlin Institute of Health at Charité - Universitätsmedizin Berlin, Berlin, Germany.,BIH Center for Regenerative Therapies (BCRT), Berlin Institute of Health at Charité - Universitätsmedizin Berlin, Berlin, Germany
| | - Britt Wildemann
- Julius Wolff Institute, Berlin Institute of Health at Charité - Universitätsmedizin Berlin, Berlin, Germany.,Experimental Trauma Surgery, Department of Trauma-, Hand- and Reconstructive Surgery, Jena University Hospital, Friedrich Schiller University Jena, Jena, Germany
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Audigé L, Bucher HCC, Aghlmandi S, Stojanov T, Schwappach D, Hunziker S, Candrian C, Cunningham G, Durchholz H, Eid K, Flury M, Jost B, Lädermann A, Moor BK, Moroder P, Rosso C, Schär M, Scheibel M, Spormann C, Suter T, Wieser K, Zumstein M, Müller AM. Swiss-wide multicentre evaluation and prediction of core outcomes in arthroscopic rotator cuff repair: protocol for the ARCR_Pred cohort study. BMJ Open 2021; 11:e045702. [PMID: 33888530 PMCID: PMC8070866 DOI: 10.1136/bmjopen-2020-045702] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/12/2020] [Revised: 03/20/2021] [Accepted: 03/22/2021] [Indexed: 11/17/2022] Open
Abstract
INTRODUCTION In the field of arthroscopic rotator cuff repair (ARCR), reporting standards of published studies differ dramatically, notably concerning adverse events (AEs). In addition, prognostic studies are overall methodologically poor, based on small data sets and explore only limited numbers of influencing factors. We aim to develop prognostic models for individual ARCR patients, primarily for the patient-reported assessment of shoulder function (Oxford Shoulder Score (OSS)) and the occurrence of shoulder stiffness 6 months after surgery. We also aim to evaluate the use of a consensus core event set (CES) for AEs and validate a severity classification for these events, considering the patient's perspective. METHODS AND ANALYSIS A cohort of 970 primary ARCR patients will be prospectively documented from several Swiss and German orthopaedic clinics up to 24 months postoperatively. Patient clinical examinations at 6 and 12 months will include shoulder range of motion and strength (Constant Score). Tendon repair integrity status will be assessed by ultrasound at 12 months. Patient-reported questionnaires at 6, 12 and 24 months will determine functional scores (subjective shoulder value, OSS), anxiety and depression scores, working status, sports activities, and quality of life (European Quality of Life 5 Dimensions 5 Level questionnaire). AEs will be documented according to a CES. Prognostic models will be developed using an internationally supported regression methodology. Multiple prognostic factors, including patient baseline demographics, psychological, socioeconomic and clinical factors, rotator cuff integrity, concomitant local findings, and (post)operative management factors, will be investigated. ETHICS AND DISSEMINATION This project contributes to the development of personalised risk predictions for supporting the surgical decision process in ARCR. The consensus CES may become an international reference for the reporting of complications in clinical studies and registries. Ethical approval was obtained on 1 April 2020 from the lead ethics committee (EKNZ, Basel, Switzerland; ID: 2019-02076). All participants will provide informed written consent before enrolment in the study. TRIAL REGISTRATION NUMBER NCT04321005. PROTOCOL VERSION Version 2 (13 December 2019).
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Affiliation(s)
- Laurent Audigé
- Research and Development, Schulthess Klinik, Zurich, Switzerland
- Orthopaedic Surgery and Traumatology, University Hospital Basel, Basel, Switzerland
- Basel Institute for Clinical Epidemiology and Biostatistics, University Hospital Basel, Basel, Switzerland
| | - Heiner C C Bucher
- Basel Institute for Clinical Epidemiology and Biostatistics, University Hospital Basel, Basel, Switzerland
| | - Soheila Aghlmandi
- Basel Institute for Clinical Epidemiology and Biostatistics, University Hospital Basel, Basel, Switzerland
| | - Thomas Stojanov
- Research and Development, Schulthess Klinik, Zurich, Switzerland
- Orthopaedic Surgery and Traumatology, University Hospital Basel, Basel, Switzerland
- Basel Institute for Clinical Epidemiology and Biostatistics, University Hospital Basel, Basel, Switzerland
| | - David Schwappach
- Swiss Patient Safety Foundation, Zurich, Switzerland
- Institute of Social and Preventive Medicine, University of Bern, Bern, Switzerland
| | - Sabina Hunziker
- Medical Communication/Psychosomatic Medicine, University Hospital Basel, Basel, Switzerland
| | - Christian Candrian
- Trauma and Ortho Unit, Ospedale Regionale di Lugano, Lugano, Switzerland
| | - Gregory Cunningham
- Shoulder Center, Hirslanden Clinique La Colline, Geneva, Switzerland
- Division of Orthopaedics and Trauma Surgery, Department of Surgery, Geneva University Hospitals, Geneve, Switzerland
| | | | - Karim Eid
- Clinic for Orthopaedics and Traumatology, Baden Cantonal Hospital, Baden, Switzerland
| | - Matthias Flury
- Center for Orthopaedics and Neurosurgery, In-Motion, Wallisellen, Switzerland
| | - Bernhard Jost
- Clinic for Orthopaedic Surgery and Traumatology of the Musculoskeletal System, Cantonal Hospital of St.Gallen, St Gallen, Switzerland
| | - Alexandre Lädermann
- Division of Orthopaedics and Trauma Surgery, Department of Surgery, Geneva University Hospitals, Geneve, Switzerland
- Division of Orthopaedics and Trauma Surgery, La Tour Hospital, Meyrin, Switzerland
| | - Beat Kaspar Moor
- Service for Orthopaedics and Traumatology of the Musculoskeletal System, Hôpital du Valais - Centre Hospitalier du Valais Romand, Martigny, Switzerland
| | - Philipp Moroder
- Department of Shoulder and Elbow Surgery, Center for Musculoskeletal Surgery, Charitè Medicine University, Berlin, Germany
| | - Claudio Rosso
- Shoulder and Elbow Center, Arthro Medics, Basel, Switzerland
| | - Michael Schär
- Department of Orthopaedic Surgery and Traumatology, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
| | - Markus Scheibel
- Department of Shoulder and Elbow Surgery, Center for Musculoskeletal Surgery, Charitè Medicine University, Berlin, Germany
- Shoulder and Elbow Surgery, Schulthess Klinik, Zurich, Switzerland
| | - Christophe Spormann
- Center for Endoprosthetics and Joint Surgery, Endoclinic, Zürich, Switzerland
| | - Thomas Suter
- Orthopaedic Shoulder and Elbow, Canton Hospital Baselland, Bruderholz, Switzerland
| | - Karl Wieser
- Department of Orthopaedics, Balgrist University Hospital, University of Zurich, Zurich, Switzerland
| | - Matthias Zumstein
- Shoulder, Elbow and Orthopaedic Sports Medicine, Orthopaedics Sonnenhof, Bern, Switzerland
- Campus SLB, Swiss Institute for Translational and Entrepreneurial Medicine, Stiftung Lindenhof, Bern, Switzerland
| | - Andreas M Müller
- Orthopaedic Surgery and Traumatology, University Hospital Basel, Basel, Switzerland
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Akgün D, Siegert P, Danzinger V, Plachel F, Minkus M, Thiele K, Moroder P. Glenoid vault and humeral head alignment in relation to the scapular blade axis in young patients with pre-osteoarthritic static posterior subluxation of the humeral head. J Shoulder Elbow Surg 2021; 30:756-762. [PMID: 32853792 DOI: 10.1016/j.jse.2020.08.004] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/20/2020] [Revised: 07/27/2020] [Accepted: 08/02/2020] [Indexed: 02/01/2023]
Abstract
BACKGROUND Static posterior subluxation of the humeral head is a pre-osteoarthritic deformity preceding posterior erosion in young patients. Its etiology remains unknown. The aim of this study was to analyze the differences in scapular morphology between young patients with pre-osteoarthritic static posterior subluxation of the humeral head and healthy controls with a centered humeral head. METHODS We performed a retrospective analysis of all patients with pre-osteoarthritic static posterior subluxation of the humeral head who were treated in our institution between January 2018 and November 2019. Fourteen shoulders in 12 patients were included in this study and then matched according their age, sex, and affected side with controls. Computed tomography images of both groups were compared in the standardized axial imaging plane for differences in scapular morphology. The following parameters were measured: glenoid version relative to the Friedman line and scapular blade axis, scapulohumeral and glenohumeral subluxation index, and neck angle, as well as glenoid and humeral offset. RESULTS The patients in the subluxation group showed significantly higher scapulohumeral and glenohumeral subluxation indexes than controls (0.76 vs. 0.55 [P < .0001] and 0.58 vs. 0.51 [P = .016], respectively). The mean measurements of glenoid version according to the Friedman line and relative to the scapular blade axis were significantly higher in the subluxation group than in controls (19° vs. 4° [P < .0001]and 14° vs. 2° [P = .0002], respectively). The glenoid vault was significantly more anteriorly positioned with respect to the scapular blade axis in the subluxation group than in controls (neck angle, 166° vs. 173° [P = .0003]; glenoid offset, 9.2 mm vs. 4.6 mm [P = .0005]). The midpoint of the humeral head showed a posterior offset with respect to the scapular blade axis in the subluxation group, whereas controls had an anteriorly placed midpoint of the humeral head (-2 mm vs. 3.1 mm, P = .01). A higher scapulohumeral subluxation index showed significant correlations with an increased anterior offset of the glenoid vault (increased glenoid offset: r = 0.493, P = .008 and decreased neck angle: r = -0.554, P = .002), a posterior humeral offset (r = -0.775, P < .0001), and excessive glenoid retroversion measured by both methods (Friedman line: r = 0.852, P < .0001; scapular blade axis: r = 0.803, P < .0001). A higher glenohumeral subluxation index also correlated significantly with an increased anterior offset of the glenoid vault (increased glenoid offset: r = 0.403, P = .034; decreased neck angle: r = -0.406, P = .032) and posterior humeral offset (r = -0.502, P = .006). CONCLUSION Young patients with pre-osteoarthritic static posterior subluxation of the humeral head have significant constitutional differences in scapular morphology in terms of an increased anterior glenoid offset, excessive glenoid retroversion, and increased posterior humeral offset in relation to the scapular blade compared with healthy matched controls.
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Affiliation(s)
- Doruk Akgün
- Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Center for Musculoskeletal Surgery, Berlin, Germany.
| | - Paul Siegert
- Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Center for Musculoskeletal Surgery, Berlin, Germany
| | - Victor Danzinger
- Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Center for Musculoskeletal Surgery, Berlin, Germany
| | - Fabian Plachel
- Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Center for Musculoskeletal Surgery, Berlin, Germany
| | - Marvin Minkus
- Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Center for Musculoskeletal Surgery, Berlin, Germany
| | - Kathi Thiele
- Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Center for Musculoskeletal Surgery, Berlin, Germany
| | - Philipp Moroder
- Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Center for Musculoskeletal Surgery, Berlin, Germany
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Plachel F, Siegert P, Moroder P, Pauzenberger L, Laky B, Anderl W, Heuberer P. Treatment of non-arthritic pseudoparetic shoulders with irreparable massive rotator cuff tears: arthroscopic procedures yield comparable midterm results to reverse arthroplasty. BMC Musculoskelet Disord 2021; 22:190. [PMID: 33593357 PMCID: PMC7885458 DOI: 10.1186/s12891-021-04050-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/29/2020] [Accepted: 02/04/2021] [Indexed: 11/29/2022] Open
Abstract
Background Irreparable massive rotator cuff tears (IMRCTs) are a well-known cause for functional limitation and difficult to treat. Although several joint-preserving as well as joint-replacing procedures were found to provide pain relief and gain of function, midterm results are scarce, particularly in pseudoparetic shoulder joints unaccompanied by severe osteoarthritis. The purpose of this study was to compare the midterm functional outcomes of arthroscopic procedures to those of reverse total shoulder arthroplasty (RTSA) in pseudoparetic shoulders with IMRCTs unaccompanied by severe osteoarthritis. Methods All patients who underwent either joint-preserving (group A) or joint-replacing (group B) procedures for IMRCT unaccompanied by severe osteoarthritis with a pseudoparetic shoulder function were retrospectively included. Clinical assessment included the Constant Score (CS), the Subjective Shoulder Value (SSV) and the Visual Analog Score (VAS) at baseline and at latest follow-up. Furthermore, the complication and revision rates were assessed. Results Overall, a total 56 patients were included of whom each 28 patients formed group A (male, 36%) and B (male, 53%) with a mean patient age at time of surgery of 70 ± 7 years and 72 ± 7 years, respectively. The mean follow-up period was 56 ± 17 months. At final follow-up, the total CS (group A: 66 ± 14 points; group B 54 ± 15 points) was significantly increased after arthroscopic treatment when compared to RTSA (p=0.011). However, no significant differences were detected with SSV (p=0.583) and VAS (p=0.536). Although complication rate (11% versus 18%) was not significantly different (p=0.705), number of revision surgeries was significantly higher in group B when compared to group A (p=0.041). Conclusions In non-arthritic pseudoparetic shoulders, both joint-preserving and joint-replacing procedures yielded good clinical midterm outcomes for the treatment of degenerative IMRCTs. Despite of comparable functional and satisfactory functional improvement, increased complication rates and surgical invasiveness outweigh the benefits of primary RTSA and therefore reserve this procedure to a second-line treatment in pseudoparetic patients without any signs of severe cuff arthropathy.
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Affiliation(s)
- Fabian Plachel
- Center for Musculoskeletal Surgery, Charité - Universitaetsmedizin, Berlin, Germany.,Department of Orthopedics and Traumatology, Paracelsus Medical University, Salzburg, Austria
| | - Paul Siegert
- Center for Musculoskeletal Surgery, Charité - Universitaetsmedizin, Berlin, Germany
| | - Philipp Moroder
- Center for Musculoskeletal Surgery, Charité - Universitaetsmedizin, Berlin, Germany
| | - Leo Pauzenberger
- Department of Orthopedics, St. Vincent Hospital Vienna, Hartmanngasse 15/9, 1050, Vienna, Austria
| | - Brenda Laky
- Department of Orthopedics, St. Vincent Hospital Vienna, Hartmanngasse 15/9, 1050, Vienna, Austria.,Austrian Research Group for Regenerative and Orthopedic Medicine, Hartmanngasse 15/9, 1050, Vienna, Austria
| | - Werner Anderl
- Department of Orthopedics, St. Vincent Hospital Vienna, Hartmanngasse 15/9, 1050, Vienna, Austria.,Austrian Research Group for Regenerative and Orthopedic Medicine, Hartmanngasse 15/9, 1050, Vienna, Austria
| | - Philipp Heuberer
- Department of Orthopedics, St. Vincent Hospital Vienna, Hartmanngasse 15/9, 1050, Vienna, Austria. .,Austrian Research Group for Regenerative and Orthopedic Medicine, Hartmanngasse 15/9, 1050, Vienna, Austria.
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Moroder P, Akgün D, Lacheta L, Thiele K, Minkus M, Maziak N, Khakzad T, Festbaum C, Rüttershoff K, Ellermann S, Weiss T, Jöns T, Danzinger V. Middle trapezius transfer for treatment of irreparable supraspinatus tendon tears- anatomical feasibility study. J Exp Orthop 2021; 8:5. [PMID: 33484354 PMCID: PMC7826324 DOI: 10.1186/s40634-021-00326-1] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/02/2020] [Accepted: 01/07/2021] [Indexed: 11/10/2022] Open
Abstract
Purpose The purpose of this study was to investigate the anatomical feasibility of a middle trapezius transfer below the acromion for treatment of irreparable supraspinatus tendon tears. Methods This study involved 20 human cadaveric shoulders in 10 full-body specimens. One shoulder in each specimen was dissected and assessed for muscle and tendon extent, force vectors, and distance to the neurovascular structures. The opposite shoulder was used to evaluate the surgical feasibility of the middle trapezius transfer via limited skin incisions along with an assessment of range of motion and risk of neurovascular injury following transfer. Results The harvested acromial insertion of the middle trapezius tendon showed an average muscle length of 11.7 ± 3.0 cm, tendon length of 2.7 ± 0.9 cm, footprint length of 4.3 ± 0.7 cm and footprint width of 1.4 ± 0.5 cm. The average angle between the non-transferred middle trapezius transfer and the supraspinatus was 33 ± 10° in the transversal plane and 34 ± 14° in the coronal plane. The mean distance from the acromion to the neurovascular bundle was 6.3 ± 1.3 cm (minimum: 4.0 cm). During surgical simulation there was sufficient excursion of the MTT without limitation of range of motion in a retracted scapular position but not in a protracted position. No injuries to the neurovascular structures were noted. Conclusion Transfer of the acromial portion of the middle trapezius for replacement of an irreparable supraspinatus seems to be feasible in terms of size, vector, excursion, mobility and safety. However, some concern regarding sufficiency of transfer excursion remains as scapula protraction can increase the pathway length of the transfer. Level of evidence Basic Science Study/Anatomical Study
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Affiliation(s)
- Philipp Moroder
- Department for Shoulder and Elbow Surgery, Center for Musculoskeletal Surgery, Campus Virchow, Charité -Universitaetsmedizin Berlin, Augustenburgerplatz 1, 13353, Berlin, Germany.
| | - Doruk Akgün
- Department for Shoulder and Elbow Surgery, Center for Musculoskeletal Surgery, Campus Virchow, Charité -Universitaetsmedizin Berlin, Augustenburgerplatz 1, 13353, Berlin, Germany
| | - Lucca Lacheta
- Department for Shoulder and Elbow Surgery, Center for Musculoskeletal Surgery, Campus Virchow, Charité -Universitaetsmedizin Berlin, Augustenburgerplatz 1, 13353, Berlin, Germany
| | - Kathi Thiele
- Department for Shoulder and Elbow Surgery, Center for Musculoskeletal Surgery, Campus Virchow, Charité -Universitaetsmedizin Berlin, Augustenburgerplatz 1, 13353, Berlin, Germany
| | - Marvin Minkus
- Department for Shoulder and Elbow Surgery, Center for Musculoskeletal Surgery, Campus Virchow, Charité -Universitaetsmedizin Berlin, Augustenburgerplatz 1, 13353, Berlin, Germany
| | - Nina Maziak
- Department for Shoulder and Elbow Surgery, Center for Musculoskeletal Surgery, Campus Virchow, Charité -Universitaetsmedizin Berlin, Augustenburgerplatz 1, 13353, Berlin, Germany
| | - Thilo Khakzad
- Department for Shoulder and Elbow Surgery, Center for Musculoskeletal Surgery, Campus Virchow, Charité -Universitaetsmedizin Berlin, Augustenburgerplatz 1, 13353, Berlin, Germany
| | - Christian Festbaum
- Department for Shoulder and Elbow Surgery, Center for Musculoskeletal Surgery, Campus Virchow, Charité -Universitaetsmedizin Berlin, Augustenburgerplatz 1, 13353, Berlin, Germany
| | - Katja Rüttershoff
- Department for Shoulder and Elbow Surgery, Center for Musculoskeletal Surgery, Campus Virchow, Charité -Universitaetsmedizin Berlin, Augustenburgerplatz 1, 13353, Berlin, Germany
| | - Sophia Ellermann
- Department for Shoulder and Elbow Surgery, Center for Musculoskeletal Surgery, Campus Virchow, Charité -Universitaetsmedizin Berlin, Augustenburgerplatz 1, 13353, Berlin, Germany
| | - Torsten Weiss
- Department for Anatomy, Institute for Functional Anatomy, Center for Surgical-anatomical Training, Charité -Universitaetsmedizin Berlin, Berlin, Germany
| | - Thomas Jöns
- Department for Anatomy, Institute for Functional Anatomy, Center for Surgical-anatomical Training, Charité -Universitaetsmedizin Berlin, Berlin, Germany
| | - Victor Danzinger
- Department for Shoulder and Elbow Surgery, Center for Musculoskeletal Surgery, Campus Virchow, Charité -Universitaetsmedizin Berlin, Augustenburgerplatz 1, 13353, Berlin, Germany
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Boehm E, Minkus M, Moroder P, Scheibel M. Arthroscopic iliac crest bone grafting in recurrent anterior shoulder instability: minimum 5-year clinical and radiologic follow-up. Knee Surg Sports Traumatol Arthrosc 2021; 29:266-274. [PMID: 32285158 PMCID: PMC7862210 DOI: 10.1007/s00167-020-05986-7] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/23/2019] [Accepted: 04/07/2020] [Indexed: 12/14/2022]
Abstract
PURPOSE To investigate the clinical and radiologic mid- to long-term results of arthroscopic iliac crest bone-grafting for anatomic glenoid reconstruction in patients with recurrent anterior shoulder instability. METHODS Seventeen patients were evaluated after a minimum follow-up of 5 years. Clinical [range of motion, subscapularis tests, apprehension sign, Subjective Shoulder Value (SSV), Constant Score (CS), Rowe Score (RS), Walch Duplay Score (WD), Western Ontario Shoulder Instability Index (WOSI)], and radiologic [X-ray (true a.p., Bernageau and axillary views) and computed tomography (CT)] outcome parameters were assessed. RESULTS Fourteen patients [mean age 31.1 (range 18-50) years] were available after a follow-up period of 78.7 (range 60-110) months. The SSV averaged 87 (range 65-100) %, CS 94 (range 83-100) points, RS 89 (range 30-100) points, WD 87 (range 25-100) points, and WOSI 70 (range 47-87) %. The apprehension sign was positive in two patients (14%). One patient required an arthroscopic capsular plication due to a persisting feeling of instability, while the second patient experienced recurrent dislocations after a trauma, but refused revision surgery. CT imaging showed a significant increase of the glenoid index from preoperative 0.8 ± 0.04 (range 0.7-0.8) to 1.0 ± 0.11 (range 0.8-1.2) at the final follow-up (p < 0.01). CONCLUSION Arthroscopic reconstruction of anteroinferior glenoid defects using an autologous iliac crest bone-grafting technique yields satisfying clinical and radiologic results after a mid- to long-term follow-up period. Postoperative re-dislocation was experienced in one (7.1%) of the patients due to a trauma and an anatomic reconstruction of the pear-shaped glenoid configuration was observed. LEVEL OF EVIDENCE IV.
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Affiliation(s)
- Elisabeth Boehm
- Department of Shoulder and Elbow Surgery, Center for Musculoskeletal Surgery, Charité-Universitätsmedizin Berlin, Augustenburger Platz 1, 13353, Berlin, Germany
| | - Marvin Minkus
- Department of Shoulder and Elbow Surgery, Center for Musculoskeletal Surgery, Charité-Universitätsmedizin Berlin, Augustenburger Platz 1, 13353, Berlin, Germany
| | - Philipp Moroder
- Department of Shoulder and Elbow Surgery, Center for Musculoskeletal Surgery, Charité-Universitätsmedizin Berlin, Augustenburger Platz 1, 13353, Berlin, Germany
| | - Markus Scheibel
- Department of Shoulder and Elbow Surgery, Center for Musculoskeletal Surgery, Charité-Universitätsmedizin Berlin, Augustenburger Platz 1, 13353, Berlin, Germany.
- Department of Shoulder and Elbow Surgery, Schulthess Clinic Zurich, Zurich, Switzerland.
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Wierer G, Plachel F, Winkler PW, Grossauer T, Quirchmayr M, Hoffelner T, Moroder P. The "Trigonometric Technique" for simple measurement of volar angulation in boxers' fractures. Orthop Traumatol Surg Res 2020; 106:1653-1658. [PMID: 33268301 DOI: 10.1016/j.otsr.2020.06.018] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/12/2019] [Revised: 06/07/2020] [Accepted: 06/12/2020] [Indexed: 02/03/2023]
Abstract
INTRODUCTION Subcapital fractures of the 5th metacarpal bone (MCV) represent a common injury. Volar angulation measurement is essential for treatment decision-making and therefore needs a reliable and valid method. The purpose of the present study was to investigate a new technique for volar angulation measurement, called the "Trigonometric Technique" (TT), and to compare the TT with the reference standard based on computed tomography (CT). HYPOTHESIS Quantifying volar angulation in MCV neck fractures with the TT shows no difference compared to the angle measured on CT scans. MATERIAL AND METHODS Fifteen patients (14 men and 1 woman) with a mean age of 37±16years (range, from 16 to 72 years) who suffered MCV neck fracture and met the inclusion and exclusion criteria were selected for this prospective cohort study. Radiologic investigation included simple dorsopalmar (DP) radiographs and CT scans from the injured hand. Volar angulation measurements were performed by three observers at two time points comparing the TT to measurements obtained on CT scans. Intraclass correlation coefficients (ICC) were determined to assess inter- and intra-observer reliability. RESULTS The TT showed a mean volar angulation of 39±5 degrees (range, from 26 to 46 degrees) compared to 41±7 degrees (range, from 28 to 54 degrees) on CT measurement, which revealed a significant correlation between the two measurement techniques (R=0.922, p<0.001). Overall, the inter-rater (R=0.977; 95% CI 0.945-0.992) as well as intra-rater (R=0.857; 95% CI 0.739-0.941) reliability for the volar angulation using the TT was excellent. CONCLUSION The TT presented in this study uses plain radiography and trigonometric identities to precisely determine volar angulation in MCV neck fractures. The TT correlates excellently with the obtained volar angulation angles measured on CT scans. We recommend the TT for volar angulation measurement in boxer's fracture as a reliable alternative to the conventional techniques. However, rotational abnormalities may remain undetected and should therefore be ruled out during clinical examination. LEVEL OF EVIDENCE II, study of diagnostic test.
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Affiliation(s)
- Guido Wierer
- Department of Orthopaedics and Traumatology, Paracelsus Medical University, Müllner Hauptstraße 48, 5020 Salzburg, Austria; Research Unit for Orthopaedic Sports Medicine and Injury Prevention (OSMI), ISAG, UMIT Tirol, 6060 Hall in Tirol, Austria
| | - Fabian Plachel
- Department of Orthopaedics and Traumatology, Paracelsus Medical University, Müllner Hauptstraße 48, 5020 Salzburg, Austria; Center for Musculoskeletal Surgery, Campus Virchow, Charité - Universitaetsmedizin, Augustenburger Platz 1, 13353 Berlin, Germany.
| | - Philipp W Winkler
- Department for Orthopaedic Sports Medicine, Klinikum rechts der Isar, Ismaninger Street 22, 81675 Munich, Germany
| | - Teresa Grossauer
- Department of Orthopaedics and Traumatology, Paracelsus Medical University, Müllner Hauptstraße 48, 5020 Salzburg, Austria
| | - Michael Quirchmayr
- Department of Orthopaedics and Traumatology, Paracelsus Medical University, Müllner Hauptstraße 48, 5020 Salzburg, Austria
| | - Thomas Hoffelner
- Department of Orthopaedics, Saint-Vincent shoulder and sports clinic, Baumgasse 20A, 1030 Vienna, Austria
| | - Philipp Moroder
- Center for Musculoskeletal Surgery, Campus Virchow, Charité - Universitaetsmedizin, Augustenburger Platz 1, 13353 Berlin, Germany
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50
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Siegert P, Plachel F, Akgün D, Baur ADJ, Schulz E, Auffarth A, Tauber M, Moroder P. Comparison of Structural Subscapularis Integrity After Latarjet Procedure Versus Iliac Crest Bone Graft Transfer. Orthop J Sports Med 2020; 8:2325967120958007. [PMID: 33110928 PMCID: PMC7564622 DOI: 10.1177/2325967120958007] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/08/2020] [Accepted: 07/29/2020] [Indexed: 11/30/2022] Open
Abstract
Background: Although clinical outcome scores are comparable after coracoid transfer
procedure (Latarjet) and iliac crest bone graft transfer (ICBGT) for
anterior shoulder instability with glenoid bone loss, a significant decrease
in internal rotation capacity has been reported for the Latarjet
procedure. Hypothesis: The subscapularis (SSC) musculotendinous integrity will be less compromised
by ICBGT than by the Latarjet procedure. Study Design: Cohort study; Level of evidence, 3. Methods: We retrospectively analyzed pre- and postoperative computed tomography (CT)
scans at short-term follow-up of 52 patients (26 Latarjet, 26 ICBGT)
previously assessed in a prospective randomized controlled trial.
Measurements included the preoperative glenoid defect area and graft area
protruding the glenoid rim at follow-up and tendon thickness assessed
through SSC and infraspinatus (ISP) ratios. Fatty muscle infiltration was
graded according to Goutallier, quantified with muscle attenuation in
Hounsfield units, and additionally calculated as percentages. We measured 3
angles to describe rerouting of the SSC musculotendinous unit around the
bone grafts. Results: SSC fatty muscle infiltration was 2.0% ± 2.2% in the Latarjet group versus
2.4% ± 2.2% in ICBGT (P = .546) preoperatively and showed
significantly higher values in the Latarjet group at follow-up (5.3% ± 4.5%
vs 2.3% ± 1.7%; P = .001). In total, 4 patients (15.4%) in
the Latarjet group showed a progression from grade 0 to grade 1 at
follow-up, whereas no changes in the ICBGT group were noted. The measured
rerouting angle of the SSC muscle was significantly increased in the
Latarjet group (11.8° ± 2.1°) compared with ICBGT (7.5° ± 1.3°;
P < .001) at follow-up, with a significant positive
correlation between this angle and fatty muscle infiltration
(R = 0.447; P = .008). Ratios of
SSC/ISP tendon thickness were 1.03 ± 0.3 in the Latarjet group versus 0.97 ±
0.3 (P = .383) in ICBGT preoperatively and showed
significantly lower ratios in the Latarjet group (0.7 ± 0.3 vs 1.0 ± 0.2;
P < .001) at follow-up. Conclusion: Although clinical outcome scores after anterior shoulder stabilization with a
Latarjet procedure and ICBGT are comparable, this study shows that the
described decline in internal rotation capacity after Latarjet procedure has
a radiographic structural correlate in terms of marked thinning and
rerouting of the SSC tendon as well as slight fatty degeneration of the
muscle.
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Affiliation(s)
- Paul Siegert
- Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Center for Musculoskeletal Surgery, Department for Shoulder and Elbow Surgery, Berlin, Germany
| | - Fabian Plachel
- Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Department of Radiology, Berlin, Germany
| | - Doruk Akgün
- Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Center for Musculoskeletal Surgery, Department for Shoulder and Elbow Surgery, Berlin, Germany
| | - Alexander D J Baur
- Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Department of Radiology, Berlin, Germany
| | - Eva Schulz
- Department of Orthopedics and Traumatology, Paracelsus Medical University, Salzburg, Austria
| | - Alexander Auffarth
- Department of Orthopedics and Traumatology, Paracelsus Medical University, Salzburg, Austria
| | - Mark Tauber
- Department for Shoulder and Elbow Surgery, ATOS Clinic Munich, Munich, Germany
| | - Philipp Moroder
- Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Center for Musculoskeletal Surgery, Department for Shoulder and Elbow Surgery, Berlin, Germany
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