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Verstift DE, Heisen J, Somford MP, van den Bekerom MP. Eponymous terms in acromioclavicular joint surgery. Clin Shoulder Elb 2024; 27:229-236. [PMID: 38556916 PMCID: PMC11181070 DOI: 10.5397/cise.2023.00080] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2023] [Revised: 03/15/2023] [Accepted: 03/21/2023] [Indexed: 04/02/2024] Open
Abstract
Eponymization serves as a means of paying tribute to individuals who have made significant contributions to our culture. Each eponym is often linked with a story for everyone to discover. To aid in the retention of these stories, this review offers readers an overview of the individuals behind the eponymous terms, as well as their original descriptions, within the context of acromioclavicular joint pathology and orthopaedic surgery.
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Lindborg CM, Smith RD, Reihl AM, Bacevich BM, Cote M, O’Donnell E, Mazzocca AD, Hutchinson I. Current Concepts in Management of Acromioclavicular Joint Injury. J Clin Med 2024; 13:1413. [PMID: 38592250 PMCID: PMC10931774 DOI: 10.3390/jcm13051413] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2024] [Revised: 01/29/2024] [Accepted: 02/08/2024] [Indexed: 04/10/2024] Open
Abstract
Background: The management of acromioclavicular joint injuries requires a thorough understanding of the anatomy and biomechanics of the joint, as well as knowledge of the pertinent physical exam findings and classification to determine an appropriate treatment approach, whether operative or nonoperative. In this article, we present a narrative review of the current state of understanding surrounding these issues. Although there are a large number of options for operative intervention, we additionally present our experience with anatomic coracoclavicular ligament reconstruction (ACCR) with imbrication of the deltoid fascia. Methods: A retrospective review of prospectively collected data on a total of 45 patients who had undergone ACCR between 2003 and 2016 were collected. Results: We found that improvements were seen in American Shoulder and Elbow Surgeons Score (ASES) (53 ± 19 to 81 ± 23), Simple Shoulder Test (SST) (6 ± 3 to 12 ± 13), Constant-Murley (CM) (60 ± 18 to 92 ± 8), and Rowe (67 ± 14 to 89 ± 11) and the mean post-operative SANE score was 86 ± 17. Conclusions: ACCR has the advantage of addressing both horizontal and vertical stability with good outcomes.
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Affiliation(s)
- Carter M. Lindborg
- Department of Orthopaedic Surgery, Massachusetts General Hospital, Harvard Medical School, Boston, MA 02115, USA; (C.M.L.); (R.D.S.); (A.M.R.); (B.M.B.); (E.O.); (A.D.M.)
| | - Richard D. Smith
- Department of Orthopaedic Surgery, Massachusetts General Hospital, Harvard Medical School, Boston, MA 02115, USA; (C.M.L.); (R.D.S.); (A.M.R.); (B.M.B.); (E.O.); (A.D.M.)
| | - Alec M. Reihl
- Department of Orthopaedic Surgery, Massachusetts General Hospital, Harvard Medical School, Boston, MA 02115, USA; (C.M.L.); (R.D.S.); (A.M.R.); (B.M.B.); (E.O.); (A.D.M.)
| | - Blake M. Bacevich
- Department of Orthopaedic Surgery, Massachusetts General Hospital, Harvard Medical School, Boston, MA 02115, USA; (C.M.L.); (R.D.S.); (A.M.R.); (B.M.B.); (E.O.); (A.D.M.)
| | - Mark Cote
- Department of Orthopaedic Surgery, University of Connecticut Health Center, Farmington, CT 06030, USA;
| | - Evan O’Donnell
- Department of Orthopaedic Surgery, Massachusetts General Hospital, Harvard Medical School, Boston, MA 02115, USA; (C.M.L.); (R.D.S.); (A.M.R.); (B.M.B.); (E.O.); (A.D.M.)
| | - Augustus D. Mazzocca
- Department of Orthopaedic Surgery, Massachusetts General Hospital, Harvard Medical School, Boston, MA 02115, USA; (C.M.L.); (R.D.S.); (A.M.R.); (B.M.B.); (E.O.); (A.D.M.)
| | - Ian Hutchinson
- Department of Orthopaedic Surgery, Massachusetts General Hospital, Harvard Medical School, Boston, MA 02115, USA; (C.M.L.); (R.D.S.); (A.M.R.); (B.M.B.); (E.O.); (A.D.M.)
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Zhu S, Chen Y, Wang P, Shi LL, Li G, Li X, Koh JL, Wang S, Yuan Tsai T, Cui G, Wang S, Shao X, Wang J. In Vivo Analysis of Acromioclavicular Kinematics and Distance During Multiplanar Humeral Elevation. Am J Sports Med 2024; 52:474-484. [PMID: 38197156 DOI: 10.1177/03635465231216116] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/11/2024]
Abstract
BACKGROUND Knowledge of acromioclavicular (AC) joint kinematics and distance may provide insight into the biomechanical function and development of new treatment methods. However, accurate data on in vivo AC kinematics and distance between the clavicle and acromion remain unknown. PURPOSE/HYPOTHESIS The purpose of this study was to investigate 3-dimensional AC kinematics and distance during arm elevation in abduction, scaption, and forward flexion in a healthy population. It was hypothesized that AC kinematics and distance would vary with the elevation angle and plane of the arm. STUDY DESIGN Controlled laboratory study. METHODS A total of 19 shoulders of healthy participants were enrolled. AC kinematics and distance were investigated with a combined dual fluoroscopic imaging system and computed tomography. Rotation and translation of the AC joint were calculated. The AC distance was measured as the minimum distance between the medial border of the acromion and the articular surface of the distal clavicle (ASDC). The minimum distance point (MDP) ratio was defined as the length between the MDP and the posterior edge of the ASDC divided by the anterior-posterior length of the ASDC. AC kinematics and distance between different elevation planes and angles were compared. RESULTS Progressive internal rotation, upward rotation, and posterior tilt of the AC joint were observed in all elevation planes. The scapula rotated more upward relative to the clavicle in abduction than in scaption (P = .002) and flexion (P = .005). The arm elevation angle significantly affected translation of the AC joint. The acromion translated more laterally and more posteriorly in scaption than in abduction (P < .001). The AC distance decreased from the initial position to 75° in all planes and was significantly greater in flexion (P < .001). The MDP ratio significantly increased with the elevation angle (P < .001). CONCLUSION Progressive rotation and significant translation of the AC joint were observed in different elevation planes. The AC distance decreased with the elevation angle from the initial position to 75°. The minimum distance between the ASDC and the medial border of the acromion moved anteriorly as the shoulder elevation angle increased. CLINICAL RELEVANCE These results could serve as benchmark data for future studies aiming to improve the surgical treatment of AC joint abnormalities to restore optimal function.
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Affiliation(s)
- Siyuan Zhu
- Department of Orthopaedic Surgery, Xinhua Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
- Investigation performed at Xinhua Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Yuzhou Chen
- Department of Orthopaedic Surgery, Xinhua Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
- Investigation performed at Xinhua Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Peng Wang
- Department of Orthopaedic Surgery, Xinhua Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
- Investigation performed at Xinhua Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Lewis L Shi
- Department of Orthopaedic Surgery and Rehabilitation Medicine, University of Chicago, Chicago, Illinois, USA
- Investigation performed at Xinhua Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Guoan Li
- Orthopedic Bioengineering Research Center, Newton-Wellesley Hospital, Newton, Massachusetts, USA
- Department of Orthopedic Surgery, Newton-Wellesley Hospital, Newton, Massachusetts, USA
- Investigation performed at Xinhua Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Xinning Li
- Department of Orthopaedic Surgery, Chobanian & Avedisian School of Medicine, Boston University, Boston, Massachusetts, USA
- Investigation performed at Xinhua Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Jason L Koh
- Department of Orthopaedic Surgery, NorthShore University HealthSystem, Evanston, Illinois, USA
- Investigation performed at Xinhua Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Shaobai Wang
- Key Laboratory of Exercise and Health Sciences of the Ministry of Education, School of Kinesiology, Shanghai University of Sport, Shanghai, China
- Investigation performed at Xinhua Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Tsung Yuan Tsai
- Med-X Research Institute, School of Biomedical Engineering, Shanghai Jiao Tong University, Shanghai, China
- Investigation performed at Xinhua Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Guoqing Cui
- Institute of Sports Medicine, Peking University Third Hospital, Peking University, Beijing, China
- Beijing Key Laboratory of Sports Injuries, Beijing, China
- Engineering Research Center of Sports Trauma Treatment Technology and Devices, Ministry of Education, Beijing, China
- Investigation performed at Xinhua Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Shaojie Wang
- Department of Joint Surgery and Sports Medicine, Zhongshan Hospital, Xiamen University, Xiamen, China
- Investigation performed at Xinhua Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Xiexiang Shao
- Department of Orthopaedic Surgery, Xinhua Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
- Investigation performed at Xinhua Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Jianhua Wang
- Department of Orthopaedic Surgery, Xinhua Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
- Investigation performed at Xinhua Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
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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] [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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Sußiek J, Wermers J, Raschke MJ, Herbst E, Dyrna F, Riesenbeck O, Katthagen JC. Acromioclavicular and coracoclavicular ligamentous insertion distances depend on the scapular tilt and decrease with anterior direction of the inferior scapula angle. Knee Surg Sports Traumatol Arthrosc 2023; 31:656-661. [PMID: 36053292 PMCID: PMC9898319 DOI: 10.1007/s00167-022-07126-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/18/2022] [Accepted: 08/17/2022] [Indexed: 02/06/2023]
Abstract
PURPOSE A variety of reconstruction techniques exist for the operative treatment of a ruptured acromioclavicular and coracoclavicular ligamentous complex. However, the complication rate remains high; between 5 and 89%. The intraoperative distance between the clavicle, acromion and coracoid is important for the refixation quality. In this study, the influence of scapular deflection on coracoclavicular and acromioclavicular distances was analysed. METHODS The ligamentous insertions of 24 fresh-frozen human scapulae were exposed. The coracoclavicular and acromioclavicular ligaments were referenced and captured in a rigid body system using a three-dimensional (3D) measurement arm. The inferior angle of the scapula was manually pulled into maximum anterior and posterior deflection, simulating a patient positioning with or without dorsal scapular support, respectively. Based on the rigid body system, the distances between the ligamentous insertions were calculated. Statistical evaluation was performed by setting the distances in anterior deflection to 100% and considering the other distances relative to this position. RESULTS The scapular deflection had a considerable impact on the distance between the ligamentous insertions. Concerning the conoid ligament, the mean distance was almost doubled when the inferior angle pointed posteriorly compared to anterior deflection (195.3 vs 100.0%; p = 0.028). The insertion of the acromioclavicular capsule also showed a significant association with the direction of deflection (posterior = 116.1% vs. anterior = 100%; p = 0.008). CONCLUSION Dorsal support shifting the inferior angle of the scapula anteriorly reduces the distance between the ligamentous insertions. Therefore, a patient position on a shoulder table with posterior support of the scapula is recommended to reliability reduce the acromioclavicular joint.
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Affiliation(s)
- Julia Sußiek
- Department of Trauma-, Hand- and Reconstructive Surgery, University Hospital Münster, Waldeyerstr. 1, 48149, Münster, Germany
| | - Jens Wermers
- Department of Trauma-, Hand- and Reconstructive Surgery, University Hospital Münster, Waldeyerstr. 1, 48149, Münster, Germany
| | - Michael J Raschke
- Department of Trauma-, Hand- and Reconstructive Surgery, University Hospital Münster, Waldeyerstr. 1, 48149, Münster, Germany
| | - Elmar Herbst
- Department of Trauma-, Hand- and Reconstructive Surgery, University Hospital Münster, Waldeyerstr. 1, 48149, Münster, Germany
| | - Felix Dyrna
- Gelenkzentrum Rose, Richard-Lehmann-Str.21, 04275, Leipzig, Germany
| | - Oliver Riesenbeck
- Department of Trauma-, Hand- and Reconstructive Surgery, University Hospital Münster, Waldeyerstr. 1, 48149, Münster, Germany
| | - J Christoph Katthagen
- Department of Trauma-, Hand- and Reconstructive Surgery, University Hospital Münster, Waldeyerstr. 1, 48149, Münster, Germany.
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Jildeh TR, Peebles AM, Brown JR, Mologne MS, Provencher MT. Treatment of Failed Coracoclavicular Ligament Reconstructions: Primary Acromioclavicular Ligament and Capsular Reconstruction and Revision Coracoclavicular Ligament Reconstruction. Arthrosc Tech 2022; 11:e1387-e1393. [PMID: 36061467 PMCID: PMC9437465 DOI: 10.1016/j.eats.2022.03.027] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/17/2022] [Accepted: 03/12/2022] [Indexed: 02/03/2023] Open
Abstract
Acromioclavicular (AC) joint dislocations are a common injury affecting 2 of every 10,000 people in the general population and comprise 9% to 12% of all injuries to the shoulder. Most injuries occur through contact activity, which drives the acromion inferiorly with the clavicle remaining in its anatomic position, initiating a cascade of injury propagating from the AC ligament followed by failure of the coracoclavicular ligaments. Many techniques have been described for AC joint injuries, without a consensus gold standard. The revision setting offers even less consensus on treatment options and countless difficulties for surgeons. There have been more than 60 described procedures regarding AC and coracoclavicular ligament reconstructions, with significant controversy regarding the optimal intervention for each injury. When these techniques fail, it is important to pinpoint the mechanism of failure to construct a successful plan for revision. The purpose of this Technical Note is to describe our preferred method of primary AC and revision coracoclavicular reconstruction using a combination of autograft and allograft semitendinosus as well as TightRope fixation.
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Affiliation(s)
| | | | - Justin R. Brown
- Steadman Philippon Research Institute, Vail, Colorado, U.S.A
| | | | - Matthew T. Provencher
- Steadman Philippon Research Institute, Vail, Colorado, U.S.A,Steadman Clinic, Vail, Colorado, U.S.A,Address correspondence to CAPT Matthew T. Provencher, M.D., M.B.A., M.C., U.S.N.R. (ret.), Steadman Philippon Research Institute, The Steadman Clinic, 181 W Meadow Dr., Ste 400, Vail, CO 81657.
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Scheiderer B, Obmann S, Feucht MJ, Siebenlist S, Degenhardt H, Imhoff AB, Rupp MC, Pogorzelski J. The Morphology of the Acromioclavicular Joint Does Not Influence the Postoperative Outcome Following Acute Stabilization—A Case Series of 81 Patients. Arthrosc Sports Med Rehabil 2022; 4:e835-e842. [PMID: 35747655 PMCID: PMC9210376 DOI: 10.1016/j.asmr.2021.09.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2021] [Accepted: 09/07/2021] [Indexed: 12/03/2022] Open
Abstract
Purpose To specifically evaluate the influence of the acromioclavicular (AC)-joint morphology on the outcome after arthroscopically assisted coracoclavicular (CC) stabilization surgery with suspensory fixation systems and to investigate whether an additional open AC-joint reduction and AC cerclage improves the clinical outcome for patients with certain morphologic AC-joint subtypes. Methods Patients with an acute acromioclavicular joint injury, who underwent arthroscopically assisted CC stabilization with suspensory fixation systems with or without concomitant AC cerclage between January 2009 and June 2017 were identified and included in this retrospective cohort analysis. AC-joint morphology was assessed on preoperative radiographs and categorized as “flat” or “non-flat” (“oblique”/“curved”) subtypes. After a minimum of 2 years of follow-up, postoperative Single Assessment Numeric Evaluation (SANE), American Shoulder and Elbow Surgeons (ASES), and visual analog scale (VAS) scores for pain were collected. A subgroup analysis of clinical outcomes depending on the surgical technique and morphological subtype of the AC joint was performed. Results Eighty-one patients (95% male, mean age 35 ± 12 years) could be included at a mean follow-up of 57 ± 14 months. Radiographic assessment of AC-joint morphology showed 24 (30%) cases of flat type, 38 (47%) cases of curved type, and 19 (23%) cases of oblique morphology. Postoperatively, no clinically significant difference could be detected after the treatment of AC joint injury via CC stabilization with or without concomitant AC cerclage (VASrest: P = .067; VASmax: P = .144, ASES: P = .548; SANE: P = .045). No clinically significant differences were found between the surgical techniques for the flat morphologic subtype (VASrest: P = .820; VASmax: P = .251; SANE: P = .104; ASES: P = .343) or the non-flat subtype (VASres: P = .021; VASmax: P = .488; SANE: P = .243, ASES: P = .843). Conclusions In arthroscopically assisted AC stabilization surgery with suspensory fixation systems for acute AC-joint injury, the AC-joint morphology did not influence the postoperative outcome, independent of the surgical technique. No clinical benefit of performing an additional horizontal stabilization could be detected in our collective at mid-term follow-up. Level of Evidence Level IV, therapeutic case series.
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Rupp MC, Kadantsev PM, Siebenlist S, Hinz M, Feucht MJ, Pogorzelski J, Scheiderer B, Imhoff AB, Muench LN, Berthold DP. Low rate of substantial loss of reduction immediately after hardware removal following acromioclavicular joint stabilization using a suspensory fixation system. Knee Surg Sports Traumatol Arthrosc 2022; 30:3842-3850. [PMID: 35451639 PMCID: PMC9568474 DOI: 10.1007/s00167-022-06978-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/11/2021] [Accepted: 04/01/2022] [Indexed: 11/10/2022]
Abstract
PURPOSE To evaluate immediate loss of reduction in patients undergoing hardware removal after arthroscopically assisted acromioclavicular (AC) joint stabilization using a high-tensile suture tape suspensory fixation system and to identify risk factors associated with immediate loss of reduction. MATERIALS AND METHODS Twenty-two consecutive patients with a mean age of 36.4 ± 12.6 years (19-56), who underwent hardware removal 18.2 ± 15.0 months following arthroscopically assisted stabilization surgery using a suspensory fixation system for AC joint injury between 01/2012 and 01/2021 were enrolled in this retrospective monocentric study. The coracoclavicular distance (CCD) as well as the clavicular dislocation/acromial thickness (D/A) ratio were measured on anterior-posterior radiographs prior to hardware removal and immediately postoperatively by two independent raters. Loss of reduction, defined as 10% increase in the CCD, was deemed substantial if the CCD increased 6 mm compared to preoperatively. Constitutional and surgical characteristics were assessed in a subgroup analysis to detect risk factors associated with loss of reduction. RESULTS Postoperatively, the CCD significantly increased from 12.6 ± 3.7 mm (4.8-19.0) to 14.5 ± 3.3 mm (8.7-20.6 mm) (p < 0.001) while the D/A ratio increased from 0.4 ± 0.3 (- 0.4-0.9) to 0.6 ± 0.3 (1.1-0.1) (p = 0.034) compared to preoperatively. In 10 cases (45%), loss of reduction was identified, while a substantial loss of reduction (> 6 mm) was only observed in one patient (4.5%). A shorter time interval between index stabilization surgery and hardware removal significantly corresponded to immediate loss of reduction (11.0 ± 5.6 vs. 30.0 ± 20.8 months; p = 0.007), as hardware removal within one year following index stabilization was significantly associated with immediate loss of reduction (p = 0.027; relative risk 3.4; odds ratio 11.67). CONCLUSIONS Substantial loss of reduction after hardware removal of a high-tensile suture tape suspensory fixation system was rare, indicating that the postoperative result of AC stabilization is not categorically at risk when performing this procedure. Even though radiological assessment of the patients showed a statistically significant immediate superior clavicular displacement after this rarely required procedure, with an increased incidence in the first year following stabilization, this may not negatively influence the results of ACJ stabilization in a clinically relevant way. LEVEL OF EVIDENCE IV.
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Affiliation(s)
- Marco-Christopher Rupp
- grid.6936.a0000000123222966Department of Orthopaedic Sports Medicine, Technical University of Munich, Ismaninger Str. 22, 81675 Munich, Germany
| | - Pavel M. Kadantsev
- grid.6936.a0000000123222966Department of Orthopaedic Sports Medicine, Technical University of Munich, Ismaninger Str. 22, 81675 Munich, Germany ,European Clinic of Sports Traumatology and Orthopaedics (ECSTO), Moscow, Russian Federation ,grid.77642.300000 0004 0645 517XPeoples Friendship University of Russia, Moscow, Russian Federation
| | - Sebastian Siebenlist
- grid.6936.a0000000123222966Department of Orthopaedic Sports Medicine, Technical University of Munich, Ismaninger Str. 22, 81675 Munich, Germany
| | - Maximilian Hinz
- grid.6936.a0000000123222966Department of Orthopaedic Sports Medicine, Technical University of Munich, Ismaninger Str. 22, 81675 Munich, Germany
| | - Matthias J. Feucht
- Orthopaedic Clinic Paulinenhilfe, Diakonie-Hospital, Stuttgart, Germany ,grid.5963.9Department of Orthopaedics and Trauma Surgery, Medical Center, Faculty of Medicine, Albert-Ludwigs-University of Freiburg, Freiburg, Germany
| | - Jonas Pogorzelski
- grid.6936.a0000000123222966Department of Orthopaedic Sports Medicine, Technical University of Munich, Ismaninger Str. 22, 81675 Munich, Germany
| | - Bastian Scheiderer
- grid.6936.a0000000123222966Department of Orthopaedic Sports Medicine, Technical University of Munich, Ismaninger Str. 22, 81675 Munich, Germany
| | - Andreas B. Imhoff
- grid.6936.a0000000123222966Department of Orthopaedic Sports Medicine, Technical University of Munich, Ismaninger Str. 22, 81675 Munich, Germany
| | - Lukas N. Muench
- grid.6936.a0000000123222966Department of Orthopaedic Sports Medicine, Technical University of Munich, Ismaninger Str. 22, 81675 Munich, Germany
| | - Daniel P. Berthold
- grid.6936.a0000000123222966Department of Orthopaedic Sports Medicine, Technical University of Munich, Ismaninger Str. 22, 81675 Munich, Germany
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9
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Funk L, Littlewood C. Letter to the Editor. Knee Surg Sports Traumatol Arthrosc 2021; 29:2727-2728. [PMID: 32915261 DOI: 10.1007/s00167-020-06268-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/24/2020] [Accepted: 08/31/2020] [Indexed: 11/30/2022]
Affiliation(s)
- Lennard Funk
- Wrightington, Wigan and Leigh NHS Foundation Trust, Wigan, UK.
| | - Chris Littlewood
- Department of Health Professions, Faculty of Health, Psychology and Social Care, Manchester Metropolitan University, Manchester, UK
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10
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Feichtinger X, Dahm F, Schallmayer D, Boesmueller S, Fialka C, Mittermayr R. Surgery improves the clinical and radiological outcome in Rockwood type IV dislocations, whereas Rockwood type III dislocations benefit from conservative treatment. Knee Surg Sports Traumatol Arthrosc 2021; 29:2735-2736. [PMID: 33420808 DOI: 10.1007/s00167-020-06423-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/29/2020] [Accepted: 12/15/2020] [Indexed: 11/30/2022]
Affiliation(s)
- Xaver Feichtinger
- AUVA Trauma Center Vienna - Meidling, Kundratstrasse 37, Vienna, Austria.
| | - Falko Dahm
- AUVA Trauma Center Vienna - Meidling, Kundratstrasse 37, Vienna, Austria
| | - Daniel Schallmayer
- AUVA Trauma Center Vienna - Meidling, Kundratstrasse 37, Vienna, Austria
| | - Sandra Boesmueller
- AUVA Trauma Center Vienna - Meidling, Kundratstrasse 37, Vienna, Austria
| | - Christian Fialka
- AUVA Trauma Center Vienna - Meidling, Kundratstrasse 37, Vienna, Austria
- Center for the Musculoskeletal System, Medical Faculty, Sigmund Freud University, Vienna, Austria
| | - Rainer Mittermayr
- AUVA Trauma Center Vienna - Meidling, Kundratstrasse 37, Vienna, Austria
- Center for the Musculoskeletal System, Medical Faculty, Sigmund Freud University, Vienna, Austria
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