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Ehmann YJ, Esser T, Vieider RP, Rupp MC, Mehl J, Imhoff AB, Siebenlist S, Minzlaff P. Clinical Outcomes and Long-term Survivorship After Osteochondral Autologous Transfer Combined With Valgus High Tibial Osteotomy: An Analysis After 19 Years With 56 Patients. Am J Sports Med 2024:3635465241280231. [PMID: 39360335 DOI: 10.1177/03635465241280231] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/04/2024]
Abstract
BACKGROUND Osteochondral defects of the medial femoral condyle combined with varus malalignment in young and active patients are a debilitating condition, which can result in early osteoarthritis. Osteochondral autologous transfer (OAT) combined with valgus high tibial osteotomy (HTO) might therefore be a comprehensive solution to maintain long-term knee function. PURPOSE/HYPOTHESIS The purpose of this study was to report clinical results and survivorship after combined OAT and valgus HTO for symptomatic osteochondral defects of the medial femoral condyle in the setting of varus malalignment at a long-term follow-up. It was hypothesized that undergoing combined OAT and valgus HTO would produce favorable clinical results along with a low rate of conversion to arthroplasty. STUDY DESIGN Case series; Level of evidence, 4. METHODS All patients treated between 1998 and 2008 with combined valgus HTO and OAT for deep osteochondral defects of the medial femoral condyle and concomitant varus malalignment >2° without meniscal repair/transplantation, osteoarthritis, or ligamentous instability/reconstruction were included. The survival rates of this combined procedure were evaluated. Failure was defined as conversion to knee joint arthroplasty during the follow-up period. Patient-reported outcomes were collected pre- and postoperatively, including the Lysholm score, visual analog scale score, Knee injury and Osteoarthritis Outcome Score (KOOS), Tegner Activity Scale score, and subjective level of satisfaction (scale 0-10). RESULTS Of 74 patients who were included for 10-year follow-up, 3 had died. A total of 15 patients were lost to follow-up, so 56 patients could be reevaluated, for a follow-up rate of nearly 80%. The mean age at surgery was 38.8 ± 9.9 years (range, 19.9-62.4 years), and the mean follow-up time was 18.9 ± 3.0 years (median, 18.8 years; range, 14.1-24.8 years). The survival rates were 87% at 10 years, 86% at 15 years, and 77% at 19 years after surgery. At final follow-up, the Lysholm score showed a mean increase of 39 points (95% CI, 25.4-50.0 points; P < .001) from 40 points to 79 points, representing a significant improvement. Overall, 96% of patients surpassed the minimal clinically important difference (MCID) for the Lysholm score. The visual analog scale score decreased by a mean of 4.8 points (range, 5-10 points) from 7.5 points to 2.7 points (P < .001), and 80% of patients surpassed the MCID. The mean Tegner Activity Scale score was 4.5 ± 1.6, and the mean KOOS subscale scores at final follow-up were as follows: Pain: 81 ± 21 (range, 19-100), Symptoms: 80 ± 22 (range, 21-100), Activities of Daily Living: 85 ± 21 (range, 18-100), Sports: 68 ± 32 (range, 0-100), and Quality of Life: 67 ± 28 (range, 0-100). Overall, 78% of the patients were satisfied with the results of the operation. CONCLUSION The combination of OAT and valgus HTO presents a viable treatment option for patients affected by osteochondral defects of the medial femoral condyle and concurrent varus malalignment. A sustained and substantial improvement in clinical outcomes, significantly reduced pain severity, and a high rate of long-term survivorship can be anticipated in the long-term follow-up.
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Affiliation(s)
- Yannick J Ehmann
- Department of Sports Orthopaedics, Technical University of Munich, Munich, Germany
| | - Thekla Esser
- Department of Orthopedic Sports Medicine, Orthoclinic Agatharied, Agatharied, Germany
| | - Romed P Vieider
- Department of Sports Orthopaedics, Technical University of Munich, Munich, Germany
| | | | - Julian Mehl
- Department of Sports Orthopaedics, Technical University of Munich, Munich, Germany
| | - Andreas B Imhoff
- Department of Sports Orthopaedics, Technical University of Munich, Munich, Germany
| | - Sebastian Siebenlist
- Department of Sports Orthopaedics, Technical University of Munich, Munich, Germany
| | - Philipp Minzlaff
- Department of Sports Orthopaedics, Technical University of Munich, Munich, Germany
- Department of Orthopedic Sports Medicine, Orthoclinic Agatharied, Agatharied, Germany
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Mabrouk A, An JS, Kley K, Tapasvi K, Tapasvi S, Ollivier M. Combined knee osteotomy and cartilage procedure for varus knees: friend or foe? A narrative review of the literature. EFORT Open Rev 2024; 9:173-180. [PMID: 38457915 PMCID: PMC10958248 DOI: 10.1530/eor-23-0180] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 03/10/2024] Open
Abstract
Varus knees with associated cartilage pathologies are not uncommon scenarios that present to orthopaedic surgeons. There is no agreement on the ideal management of varus knees with concomitant cartilage pathology. Through a literature review, the authors tried to answer three main questions: On October 2022, OVID MEDLINE, EMBASE, and COCHRANE databases were searched. Clinical studies reporting on clinical, radiologic, or macroscopic cartilage regeneration following either isolated knee osteotomy or concomitant osteotomy and a cartilage procedure were reviewed. Despite controversies, the literature demonstrated favourable outcomes of combined knee osteotomy and a cartilage procedure in patients with substantial deformity and cartilage defects. Isolated high tibial osteotomy may induce cartilage regeneration in several scenarios and severities of concomitant malalignment and cartilage defects. There are recommendations that knee osteotomy should be added to a cartilage procedure when an extra-articular deformity of > 5° is detected. Some studies report good outcomes for combining a knee osteotomy with cartilage grafting, but they lack a control group of isolated osteotomy. There is still scarce of evidence on the influence of osteotomies on cartilage regeneration and the outcomes of concomitant osteotomy and different cartilage procedures vs isolated osteotomies. With advanced statistical evaluation (artificial intelligence, machine learning) of big datasets, more answers and better results will be delivered.
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Affiliation(s)
- Ahmed Mabrouk
- Mid Yorkshire Teaching Hospitals, Yorkshire, United Kingdom
- Institut du mouvement et de l’appareil locomoteur, Marseille, France
| | - Jae-Sung An
- Institut du mouvement et de l’appareil locomoteur, Marseille, France
| | | | | | | | - Matthieu Ollivier
- Institut du mouvement et de l’appareil locomoteur, Marseille, France
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Weishorn J, Bumberger A, Niemeyer P, Tischer T, Mueller-Rath R, Renkawitz T, Bangert Y. [The first decade of the DGOU's cartilage register-insights for clinical practice]. ORTHOPADIE (HEIDELBERG, GERMANY) 2023:10.1007/s00132-023-04386-2. [PMID: 37272990 DOI: 10.1007/s00132-023-04386-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Accepted: 04/11/2023] [Indexed: 06/06/2023]
Abstract
BACKGROUND Registry data provide valuable epidemiological insights that help to further improve process and outcome quality in patient care. The German Cartilage Registry (KnorpelRegister DGOU) was established in 2013 as an instrument for quality assurance after surgical cartilage regenerative procedures on hip, knee and ankle joints. DATA COLLECTION Participation in the German Cartilage Registry is optional for hospitals and practices. Currently, more than 160 institutions in Germany, Austria and Switzerland participate in the data collection. DATA COLLECTED AND INITIAL FINDINGS The implementation of PROMs ("patient related outcome measurement"), as well as the recording of surgery-related influencing factors, enable a differentiated scientific analysis and represent a key quality feature of the registry. Initial analyses of the registry data have already provided clinically relevant findings for immediate patient care. For example, patients who underwent focal cartilage therapy prior to ACT show a clinically relevant, significantly worse outcome than patients who underwent primary ACT. First conclusions could also be drawn regarding the relevance of concomitant cartilage therapy. For example, in patients with focal cartilage damage of the medial knee joint compartment, registry data indicate that leg axis correction is indicated even in cases of mild deviation of the mechanical leg axis. CONCLUSION The data and findings obtained from the Cartilage Registry represent an important aspect of clinical care research and serve as a complement to well-designed, clinically prospective cohort studies, RCTs, and meta-analyses.
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Affiliation(s)
- Johannes Weishorn
- Orthopädische Universitätsklinik Heidelberg, Ruprecht-Karls-Universität Heidelberg, Schlierbacher Landstr. 200a, 69118, Heidelberg, Deutschland
| | | | - Philipp Niemeyer
- OCM Orthopädische Chirurgie München, München, Deutschland
- Klinik für Orthopädie und Unfallchirurgie, Albert-Ludwigs-Universität Freiburg, Freiburg im Breisgau, Deutschland
| | - Thomas Tischer
- Malteser Waldkrankenhaus St. Marien, Erlangen, Deutschland
| | | | - Tobias Renkawitz
- Orthopädische Universitätsklinik Heidelberg, Ruprecht-Karls-Universität Heidelberg, Schlierbacher Landstr. 200a, 69118, Heidelberg, Deutschland
| | - Yannic Bangert
- Orthopädische Universitätsklinik Heidelberg, Ruprecht-Karls-Universität Heidelberg, Schlierbacher Landstr. 200a, 69118, Heidelberg, Deutschland.
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Niemeyer P, Albrecht D, Aurich M, Becher C, Behrens P, Bichmann P, Bode G, Brucker P, Erggelet C, Ezechieli M, Faber S, Fickert S, Fritz J, Hoburg A, Kreuz P, Lützner J, Madry H, Marlovits S, Mehl J, Müller PE, Nehrer S, Niethammer T, Pietschmann M, Plaass C, Rössler P, Rhunau K, Schewe B, Spahn G, Steinwachs M, Tischer T, Volz M, Walther M, Zinser W, Zellner J, Angele P. Empfehlungen der AG Klinische Geweberegeneration zur Behandlung von Knorpelschäden am Kniegelenk. ZEITSCHRIFT FUR ORTHOPADIE UND UNFALLCHIRURGIE 2023; 161:57-64. [PMID: 35189656 DOI: 10.1055/a-1663-6807] [Citation(s) in RCA: 19] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
The Working Group of the German Orthopedic and Trauma Society (DGOU) on Tissue Regeneration has published recommendations on the indication of different surgical approaches for treatment of full-thickness cartilage defects in the knee joint in 2004, 2013 and 2016. Based upon new scientific knowledge and new developments, this recommendation is an update based upon the best clinical evidence available. In addition to prospective randomised controlled clinical trials, this also includes studies with a lower level of evidence. In the absence of evidence, the decision is based on a consensus process within the members of the working group.The principle of making decision dependent on defect size has not been changed in the new recommendation either. The indication for arthroscopic microfracturing has been reduced up to a defect size of 2 cm2 maximum, while autologous chondrocyte implantation is the method of choice for larger cartilage defects. Additionally, matrix-augmented bone marrow stimulation (mBMS) has been included in the recommendation for defects ranging from 1 to 4.5 cm2. For the treatment of smaller osteochondral defects, in addition to osteochondral transplantation (OCT), mBMS is also recommended. For larger defects, matrix-augmented autologous chondrocyte implantation (mACI/mACT) in combination with augmentation of the subchondral bone is recommended.
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Affiliation(s)
- Philipp Niemeyer
- OCM Orthopädische Chirurgie München, München, Deutschland.,Klinik für Orthopädie und Unfallchirurgie, Albert-Ludwigs-Universität Freiburg, Freiburg im Breisgau, Deutschland
| | - Dirk Albrecht
- Chirurgie, Klinik im Kronprinzenbau, Reutlingen, Deutschland
| | - Matthias Aurich
- Department für Orthopädie, Unfall- und Wiederherstellungschirurgie, Universitätsklinikum Halle (Saale), Halle (Saale), Deutschland.,Klinik für Unfall- und Wiederherstellungschirurgie, BG Klinikum Bergmannstrost Halle, Halle (Saale, Deutschland
| | - Christoph Becher
- HKF - Internationales Zentrum für Hüft-, Knie- und Fußchirurgie, ATOS Klinik Heidelberg, Heidelberg, Deutschland
| | | | - Peter Bichmann
- Klinik für Unfallchirurgie und Orthopädie, Nordwest Krankenhaus Sanderbusch GmbH, Sande, Deutschland
| | - Gerrit Bode
- Klinik für Orthopädie und Unfallchirurgie, Albert-Ludwigs-Universität Freiburg, Freiburg im Breisgau, Deutschland
| | | | | | - Marco Ezechieli
- Klinik für Orthopädie, Unfallchirurgie und Sporttraumatologie, St. Josefs Krankenhaus Salzkotten, Salzkotten, Deutschland
| | - Svea Faber
- Orthopädische Chirurgie, OCM Klinik München, München, Deutschland
| | - Stefan Fickert
- University Medical Center Mannheim Medical Faculty Mannheim, Heidelberg University, Sportorthopaedicum Regensburg/Straubing, Straubing, Deutschland
| | - Jürgen Fritz
- Orthopädie und Unfallchirurgie, Orthopädisch Chirurgisches Centrum, Tübingen, Deutschland
| | - Arnd Hoburg
- Gelenk- und Wirbelsäulenzentrum, Gelenk- und Wirbelsäulenzentrum Steglitz-Berlin, Berlin, Deutschland
| | - Peter Kreuz
- Zentrum für Orthopädie und Unfallchirurgie, Asklepios Stadtklinik Bad Tolz, Bad Tölz, Deutschland
| | - Jörg Lützner
- Klinik und Poliklinik für Orthopädie, Universitätsklinikum Carl Gustav Carus Dresden, Dresden, Deutschland
| | - Henning Madry
- Zentrum für Experimentelle Orthopädie, Universitätsklinikum des Saarlandes, Homburg, Deutschland
| | - Stefan Marlovits
- Klinik für Unfallchirurgie, Medizinische Universität Wien, Wien, Österreich
| | - Julian Mehl
- Abteilung und Poliklinik für Sportorthopädie, Klinikum rechts der Isar, TUM, München, Deutschland
| | - Peter E Müller
- Orthopädische Klinik, Ludwig-Maximiliams-Universität München, München, Deutschland
| | - Stefan Nehrer
- Fakultät für Gesundheit und Medizin, Donau-Universität Krems, Krems, Österreich
| | - Thomas Niethammer
- Klinik und Poliklinik für Orthopädie, Physikalische Medizin und Rehabilitation, Ludwig-Maximilians-Universität, München, Deutschland
| | - Matthias Pietschmann
- Orthopädische Klinik, Ludwig-Maximiliams-Universität München, München, Deutschland
| | - Christian Plaass
- Diakovere Annastift, Klinik für Orthopädie, Medizinische Hochschule Hannover, Hannover, Deutschland
| | - Philip Rössler
- Klinik für Orthopädie und Unfallchirurgie, Universitätsklinikum Bonn, Bonn, Deutschland
| | - Klaus Rhunau
- Orthopedics, Viktoria Klinik Bochum, Bochum, Deutschland
| | - Bernhard Schewe
- Orthopädisch Chirurgisches Centrum, Orthopädisch Chirurgisches Centrum Tübingen, Tübingen, Deutschland
| | - Gunter Spahn
- Unfallchirurgie und Orthopädie, Praxisklinik für Unfallchirurgie und Orthopädie, Eisenach, Deutschland.,Klinik für Unfall,- Hand- und Wiederherstellungschirurgie, Universitätsklinikum Jena, Jena, Deutschland
| | - Matthias Steinwachs
- Zentrum für Orthobiologie und Knorpelregeneration, Schulthess Klinik, Zürich, Schweiz
| | - Thomas Tischer
- Orthopaedic Surgery, University Medicine Rostock, Rostock, Deutschland
| | - Martin Volz
- Orthopädie & Unfallchirurgie, Sportklinik Ravensburg, Ravensburg, Deutschland
| | - Markus Walther
- Foot and Ankle Surgery, Schön Klinik München Harlaching, München, Deutschland
| | - Wolfgang Zinser
- Klinik für Orthopädie und Unfallchirurgie, St. Vinzenz-Hospital Dinslaken, Dinslaken, Deutschland
| | | | - Peter Angele
- sporthopaedicum Regensburg, Regensburg, Deutschland.,Universitätsklinikum Regensburg, Regensburg, Deutschland
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Zellner J, Faber S, Spahn G, Zinser W, Niemeyer P, Angele P. Current practice of concomitant surgeries in cartilage repair of the femorotibial compartment of the knee: baseline data of 4968 consecutive patients from the German cartilage registry (KnorpelRegister DGOU). Arch Orthop Trauma Surg 2023; 143:571-581. [PMID: 34324039 PMCID: PMC9925572 DOI: 10.1007/s00402-021-04077-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/13/2021] [Accepted: 07/12/2021] [Indexed: 11/25/2022]
Abstract
INTRODUCTION The treatment of underlying comorbidities is a field of rising interest in cartilage repair surgery. The aim of this study was to analyze the current practice of concomitant surgeries in cartilage repair of the knee especially in the medial or lateral femorotibial compartment. Type, frequency and distribution of additional surgeries for correction of malalignment, knee instability and meniscus deficiency should be evaluated. METHODS Baseline data of 4968 patients of the German Cartilage Registry (KnorpelRegister DGOU) were analyzed regarding the distribution of concomitant surgeries in addition to regenerative cartilage treatment. RESULTS Beyond 4968 patients 2445 patients with cartilage defects in the femorotibial compartment of the knee could be identified. Of these patients 1230 (50.3%) received additional surgeries for correction of malalignment, instability and meniscus deficiency. Predominant procedures were leg axis corrections (31.3%), partial meniscectomy (20.9%) and ACL reconstruction (13.4%). The distribution of the concomitant surgeries varied between cartilage defects according to the different defect genesis. Patients with traumatic defects were younger (36y) and received predominantly ACL reconstructions (29.2%) (degenerative: 6.7%), whereas patients with degenerative defects were older (43y) and underwent predominantly leg axis corrections (38.0%; traumatic: 11.0%). CONCLUSIONS This study shows the high frequency and distinct distribution of the concomitant surgeries in addition to regenerative cartilage treatment procedures. Understanding of the underlying cause of the cartilage defect and addressing the comorbidities as a whole joint therapy are of utmost importance for a successful regenerative cartilage treatment. These data provide a baseline for further follow up evaluations and long-term outcome analysis. LEVEL OF EVIDENCE II.
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Affiliation(s)
- Johannes Zellner
- Department of Trauma Surgery, University Medical Center of Regensburg, Franz Josef Strauss Allee 11, 93042, Regensburg, Germany.
- Sporthopaedicum Regensburg, Hildegard von Bingen Strasse 1, 93053, Regensburg, Germany.
| | - Svea Faber
- OCM, Orthopedic Surgery Munich, Steinerstrasse 6, 812306, Munich, Germany
| | - Gunter Spahn
- Praxisklinik Eisenach, Sophienstrasse 16, 99817, Eisenach, Germany
- Department of Trauma Surgery, University Medical Center Jena, Bachstrasse 18, 07743, Jena, Germany
| | - Wolfgang Zinser
- Department of Orthopedics and Trauma Surgery, St. Vinzenz Hospital, Dr.-Otto-Seidel-Strasse 31-33, 46535, Dinslaken, Germany
| | - Philipp Niemeyer
- OCM, Orthopedic Surgery Munich, Steinerstrasse 6, 812306, Munich, Germany
- Department of Orthopedics and Trauma Surgery, University Medical Center Freiburg, Hugstetter Strasse 55, 79106, Freiburg, Germany
| | - Peter Angele
- Department of Trauma Surgery, University Medical Center of Regensburg, Franz Josef Strauss Allee 11, 93042, Regensburg, Germany
- Sporthopaedicum Regensburg, Hildegard von Bingen Strasse 1, 93053, Regensburg, Germany
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Wu Z, Yuan D, Hua D, Yang L, Zou Q, Tian X, Ye C. Precise Patellar Tendon Insertion Protection and Osteotomy Surface Advantage of Transtibial Tuberosity-High Tibial Osteotomy. Orthop Surg 2022; 15:639-647. [PMID: 36419315 PMCID: PMC9891937 DOI: 10.1111/os.13562] [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: 02/21/2022] [Revised: 09/16/2022] [Accepted: 09/19/2022] [Indexed: 11/26/2022] Open
Abstract
OBJECTIVE Medial opening wedge high tibial osteotomy (HTO) is successful in the treatment of knee osteoarthritis with medial compartment stenosis and tibial varus deformity, but patella infera is the main complication. This study aims to design a new medial tibial open osteotomy scheme, transtibial tuberosity-high tibial osteotomy (TT-HTO), which can fully protect the patellar tendon insertion. In addition, the area of the osteotomy surface and wedge volume were evaluated in TT-HTO, biplanar distal tibial tuberosity osteotomy (biplanar-DTO), and uniplanar-DTO to evaluate the potential advantages of this technology in bone healing. METHODS The tibial tubercle was divided into four equal sections from proximal to distal, which were defined as zones A, B, C, and D. From September to December 2020, the imaging examinations of 200 patients (95 males and 105 females) with a mean age of 40.6 years (range 19-60 years) were evaluated to observe the zonation of the tibial tubercle where the insertion of the patellar tendon is located. Then, 59 patients (23 males and 36 females) with a mean age 59.6 years (range 43-77 years), for a total of 69 knees (32 right and 37 left), who underwent routine knee surgery were observed and verified. According to the position of the patellar tendon insertion, TT-HTO was designed. Fifteen tibial sawbones were divided equally into three groups: TT-HTO; biplanar-DTO; and uniplanar-DTO. The total area of the osteotomy surface was compared using the graph paper method. The wedge volume at wedge heights of 10 mm was compared among osteotomy types using the plasticine Archimedes principle. One-way repeated-measures analysis of variance was used to compare the total area of the osteotomy surface and the wedge volume. RESULTS The osteotomy line of TT-HTO passes through the boundary point of zones B and C of the tibial tubercle to fully protect the insertion point of the patellar tendon. The total area of the osteotomy surface in TT-HTO and biplanar-DTO was significantly larger than that in uniplanar-DTO (P < 0.05). The wedge volume in uniplanar-DTO was significantly smaller than that in TT-HTO and biplanar-DTO (P < 0.05). No significant differences in the osteotomy surface and the wedge volume were identified between TT-HTO and biplanar-DTO. CONCLUSION TT-HTO can protect the patellar tendon insertion and avoid postoperative patella infera. The osteotomy surface is large and located in an area of cancellous bone, which ensures its good healing characteristics.
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Affiliation(s)
- Zhanyu Wu
- Department of OrthopaedicsThe Affiliated Hospital of Guizhou Medical UniversityGuiyangChina,Department of Medical‐Industrial IntegrationNational‐Local Joint Engineering Laboratory of Cell Engineering and BiomedicineGuiyangChina
| | - Daizhu Yuan
- Department of OrthopaedicsThe Affiliated Hospital of Guizhou Medical UniversityGuiyangChina,Department of Medical‐Industrial IntegrationNational‐Local Joint Engineering Laboratory of Cell Engineering and BiomedicineGuiyangChina
| | - Dawei Hua
- Department of OrthopaedicsThe Affiliated Hospital of Guizhou Medical UniversityGuiyangChina
| | - Long Yang
- Department of OrthopaedicsThe Affiliated Hospital of Guizhou Medical UniversityGuiyangChina,Department of Medical‐Industrial IntegrationNational‐Local Joint Engineering Laboratory of Cell Engineering and BiomedicineGuiyangChina
| | - Qiang Zou
- Department of OrthopaedicsThe Affiliated Hospital of Guizhou Medical UniversityGuiyangChina,Department of Medical‐Industrial IntegrationNational‐Local Joint Engineering Laboratory of Cell Engineering and BiomedicineGuiyangChina
| | - Xiaobin Tian
- Department of OrthopaedicsThe Affiliated Hospital of Guizhou Medical UniversityGuiyangChina
| | - Chuan Ye
- Department of OrthopaedicsThe Affiliated Hospital of Guizhou Medical UniversityGuiyangChina,Department of Medical‐Industrial IntegrationNational‐Local Joint Engineering Laboratory of Cell Engineering and BiomedicineGuiyangChina,China Orthopaedic Regenerative Medicine Group (CORMed)HangzhouChina
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Faber S, Niemeyer P, Fickert S. Knorpelersatzverfahren und Regeneration am Knie- und
Hüftgelenk. PHYSIKALISCHE MEDIZIN, REHABILITATIONSMEDIZIN, KURORTMEDIZIN 2022. [DOI: 10.1055/a-1821-7068] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
Die operative Therapie von Knorpelschäden am Kniegelenk hat sich in den
letzten Jahren von vorsichtigen Anfängen mit innovativen
Therapieansätzen zu einem festen und etablierten Baustein der
gelenkerhaltenden Therapie entwickelt. Hingegen hat sich am Hüftgelenk
erst in den letzten 10 Jahren, basierend auf einem erweiterten
Verständnis grundlegender mechanischer Pathomechanismen, die
gelenkerhaltende Hüftchirurgie und insbesondere die Knorpeltherapie
etabliert. Der Beitrag stellt die zur Verfügung stehenden Techniken
vor.
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8
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Aktuelle Therapieempfehlungen zur operativen Knorpeltherapie am Kniegelenk. ARTHROSKOPIE 2022. [DOI: 10.1007/s00142-022-00556-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Preoperative joint line convergence angle correction is a key factor in optimising accuracy in varus knee correction osteotomy. Knee Surg Sports Traumatol Arthrosc 2022; 31:1583-1592. [PMID: 35994079 PMCID: PMC10049955 DOI: 10.1007/s00167-022-07092-2] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/03/2022] [Accepted: 07/24/2022] [Indexed: 10/15/2022]
Abstract
PURPOSE This study aimed to identify and prevent preoperative factors that can be influenced in preoperative planning to reduce postoperative malcorrections. METHODS The method used in this study was a retrospective two-centre analysis of 78 pre and postoperative fully weight-bearing radiographs of patients who underwent valgus osteotomy correction due to symptomatic medial compartment osteoarthritis. A computer software (TraumaCad®) was used to aim for an intersection point of the mechanical tibiofemoral axis (mTFA) with the tibia plateau at 55-60% (medial = 0%, lateral = 100%). Postoperative divergence ± 5% of this point was defined as over- and undercorrection. Preoperative joint geometry factors were correlated with postoperative malcorrection. Planning was conducted using the established method described by Miniaci (Group A) and with additional correction of the joint line convergence angle (JLCA) using the formula JLCA-2/2 (Group B). Additionally, in a small clinical case series, planning was conducted with JLCA correction. Statistical analysis was performed using (multiple) linear regression analysis and analysis of variance (ANOVA) with p < 0.05 considered significant. RESULTS In 78 analysed cases, postoperative malcorrection was detected in 37.2% (5.1% undercorrection, 32.1% overcorrection). Linear regression analysis revealed preoperative body mass index (BMI, p = 0.04), JLCA (p = 0.0001), and osteotomy level divergence (p = 0.0005) as factors correlated with overcorrection. In a multiple regression analysis, JLCA and osteotomy level divergence remained significant factors. Preoperative JLCA correction reduced the planned osteotomy gap (A 9.7 ± 2.8 mm vs B 8.3 ± 2.4 mm; p > 0.05) and postoperative medial proximal tibial angle (MPTA: A 94.3 ± 2.1° vs B 92.3 ± 1.5°; p < .05) in patients with preoperative JLCA ≥ 4°. The results were validated using a virtual postoperative correction of cases with overcorrection. A case series (n = 8) with a preoperative JLCA > 4 revealed a postoperative accuracy using the JLCA correction of 3.4 ± 1.9%. CONCLUSION Preoperative JLCA ≥ 4° and tibial osteotomy level divergence were identified as risk factors for postoperative overcorrection. Preoperative JLCA correction using the formula JLCA-2/2 is proposed to better control ideal postoperative correction and reduce MPTA. The intraoperatively realised osteotomy level should be precisely in accordance with preoperative planning. LEVEL OF EVIDENCE III, cross-sectional study.
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Undercorrection: the undesired effect of compression on the osteotomy gap of the medial opening wedge high tibial osteotomy and its clinical significance. Arch Orthop Trauma Surg 2022; 142:937-946. [PMID: 33417032 DOI: 10.1007/s00402-020-03717-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/06/2020] [Accepted: 12/06/2020] [Indexed: 10/22/2022]
Abstract
INTRODUCTION Undercorrection is a common problem in opening wedge high tibial osteotomy (OWHTO). We investigated the compression effect of cortex screw on the osteotomy gap and its clinical significance. MATERIALS AND METHODS A standard OWHTO using the TomoFix plate was conducted on 20 bone models in two groups to get a 10-mm medial osteotomy gap. A cortex screw was used temporarily in a neutral (at the center) and an eccentric position (near the inclined plane) of the dynamic hole in group 1 and group 2, respectively. The mean of undercorrection observed in the two groups was compared using an independent t test. Also, the effect of compression on the gap between the plate and medial tibial cortex, and the osteotomy gap was evaluated using a Sine rule. Besides, the mean undercorrection observed was assessed for clinical significance based on the effect on the weight-bearing axis (WBA) using a Cosine Rule. RESULTS The mean undercorrection was 1.3 ± 0.6 mm and 2.6 ± 0.6 mm in group 1 and group 2, respectively. A significantly greater undercorrection was observed in group 2 (p < 0.001). The correction loss in group 2 has resulted from combinations of the sliding effect of the dynamic hole and oblique compression effect over the gap between the plate and medial tibial cortex whereas in group 1 it has only resulted from the oblique compression effect. The observed undercorrection in group 2 has resulted in clinically significant WBA shift (10%) over the width of the tibial plateau. CONCLUSIONS In OWHTO, compression is important for the stability and healing of osteotomy, but it can also cause loss of correction. In patients requiring large correction, the surgeon should control the amount of compression required and consider making extra osteotomy gap to avoid undercorrection. Furthermore, the placement of cortex screws in neutral is essential to lower the risk of undercorrection.
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Ferner F, Lutter C, Schubert I, Schenke M, Strecker W, Dickschas J. Perioperative complications in osteotomies around the knee: a study in 858 cases. Arch Orthop Trauma Surg 2022; 142:769-775. [PMID: 33417020 DOI: 10.1007/s00402-020-03696-w] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/22/2020] [Accepted: 12/03/2020] [Indexed: 12/13/2022]
Abstract
INTRODUCTION Eight hundred and fifty-eight consecutive osteotomies around the knee joint were analyzed retrospectively to detect intra- and early postoperative complications in a period of 4 weeks postoperative. Indications for osteotomy were unilateral gonarthritis or torsional deformities resulting in femoropatellar instability or anterior knee pain. MATERIALS AND METHODS Etiology of deformity, technique and mode of correction and level of osteotomy were registered. Complications were detected and divided in minor complication (superficial wound infection, and deep-vein thrombosis) and major complication (compartment syndrome, deep infection, and vascular lesion). RESULTS Fifteen major (1.7%) and 17 minor complications (2.0%) were detected: 5 vascular lesions (0.58%), 4 compartment syndromes (0.47%) and 6 deep infections (0.70%), 14 superficial wound infections (1.6%) and 3 deep-vein thrombosis (0.35%). In posttraumatic osteotomies and continuous corrections, risk for a superficial wound infection was significantly higher and with osteoclasia risk for vascular lesion was higher compared to osteotomy with oscillating saw. No difference was found for anatomical level of osteotomy and for the other complications in terms of etiology of deformity, technique of osteotomy and mode of correction. CONCLUSION Osteotomy around the knee is a safe procedure in the treatment of unicompartmental gonarthritis in terms of intra- and postoperative complications. Major complications are rare. Pit falls for compartment syndromes (LCW and torsional corrections) have to kept in mind. There is no difference in frequency of complications between HTO and supracondylar osteotomies. Risk for superficial wound infection is higher in posttraumatic osteotomies and with continuous corrections. Osteoclasia contains a higher risk for vascular lesion compared to oscillating saw.
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Affiliation(s)
- Felix Ferner
- Klinik Für Orthopädie Und Unfallchirurgie Sozialstiftung Bamberg, Buger Str. 80, 96049, Bamberg, Germany.
| | - Christoph Lutter
- Klinik für Orthopädie, Universität Rostock, Schillingallee 35, 18057, Rostock, Germany
| | - Ilona Schubert
- Klinik Für Orthopädie Und Unfallchirurgie Sozialstiftung Bamberg, Buger Str. 80, 96049, Bamberg, Germany
| | - Maximilian Schenke
- Klinik Für Orthopädie Und Unfallchirurgie Sozialstiftung Bamberg, Buger Str. 80, 96049, Bamberg, Germany
| | - Wolf Strecker
- Klinik Für Orthopädie Und Unfallchirurgie Sozialstiftung Bamberg, Buger Str. 80, 96049, Bamberg, Germany
| | - Joerg Dickschas
- Klinik Für Orthopädie Und Unfallchirurgie Sozialstiftung Bamberg, Buger Str. 80, 96049, Bamberg, Germany
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Faber S, Seiferth N, Angele P, Spahn G, Buhs M, Zinser W, Niemeyer P. Factors correlating with patients' satisfaction after undergoing cartilage repair surgery-data from the German Cartilage Registry (KnorpelRegister DGOU). INTERNATIONAL ORTHOPAEDICS 2021; 46:457-464. [PMID: 34877608 PMCID: PMC8840917 DOI: 10.1007/s00264-021-05274-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/27/2020] [Accepted: 11/24/2021] [Indexed: 12/01/2022]
Abstract
Subjective patient satisfaction is the most relevant parameter for assessing the success of treatment after orthopaedic surgery. The aim of the present study was to correlate patient-reported outcome parameters (i.e., absolute KOOS, KOOS increase) and revision-free survival with patient’s satisfaction. Furthermore, the study aimed on the identification of pre-operative factors that are associated with patient’s satisfaction after the surgery. For the present study, 6305 consecutive patients from the German Cartilage Registry (KnorpelRegister DGOU) were analyzed. Patient characteristics and outcome were correlated with patients’ satisfaction after a follow-up of three years by Spearman correlation. P values < 0.05 were considered statistically significant. Mean age was 37 ± 12.5 years, 59.7% patients were male, and 40.3% female. Most patients (46.7%) were treated with an autologous chondrocyte implantation (ACI). The strongest correlation of subjective satisfaction and the subscore quality of life (r = 0.682; p < 0.001) was found, whereas the post-operative increase in KOOS from the pre-operative value showed only a moderate correlation (r = 0.520; p < 0.001). There was also a significant correlation with the absolute KOOS value (r = 0.678; p < 0.001), the subscores pain (r = 0.652; p < 0.001), quality of life (r = 0.682; p < 0.001), and sports (r = 0.633; p < 0.001), whereas symptoms (r = 0.504, p < 0.001) and activities of daily life (r = 0.601; p < 0.001) showed a weaker correlation. Pain also correlated highly significant with the patient satisfaction 24 months after surgery (r = − 0.651, p < 0.001). The correlation between satisfaction after the 2nd and 3rd year (r = 0.727; p < 0.001) is stronger than correlation after six months and three years (r = 0.422, p < 0.001). All pre-operative parameters show a very weak correlation (r < 0.1). The use of standardized measuring instruments (KOOS and Pain) is a relevant outcome parameter in science and clinical practice, whereas absolute values represent satisfaction better than the individual increase. The subscores “pain,” “quality of life,” and “sports” represent satisfaction better than the subscores “symptoms” and “activity of daily life.” Early satisfaction has only a moderate predictive value for satisfaction after 3 years, which is of great practical relevance in particular for the assessment of potential treatment failures. It is remarkable to note that a revision surgery is only very mildly associated with increased dissatisfaction. Pre-operative factors are not reliable prediction factors for post-operative patient satisfaction.
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Affiliation(s)
- Svea Faber
- OCM | Orthopädische Chirurgie München, Steinerstrasse 6, 812306, München, Germany
| | - Nick Seiferth
- OCM | Orthopädische Chirurgie München, Steinerstrasse 6, 812306, München, Germany
- Klinik Für Orthopädie Und Traumatologie, Universitätsklinikum Freiburg, Freiburg im Breisgau, Germany
| | - Peter Angele
- Sporthopaedicum Berlin, Berlin, Germany
- Sporthopaedicum Straubing, Straubing, Germany
- Sporthopaedicum Regensburg, Regensburg, Germany
- Klinik Für Unfallchirurgie, Universitätsklinikum Regensburg, Regensburg, Germany
| | - Gunter Spahn
- Praxisklinik Eisenach, Eisenach, Germany
- Klinik Für Unfall-, Hand- und Wiederherstellungschirurgie, Universitätsklinikum Jena, Jena, Germany
| | - Matthias Buhs
- Norddeutsches Knorpelcentrum, COVZ Quickborn, Quickborn, Germany
| | | | - Philipp Niemeyer
- OCM | Orthopädische Chirurgie München, Steinerstrasse 6, 812306, München, Germany.
- Klinik Für Orthopädie Und Traumatologie, Universitätsklinikum Freiburg, Freiburg im Breisgau, Germany.
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Faber S, Angele P, Zellner J, Bode G, Hochrein A, Niemeyer P. Comparison of Clinical Outcome following Cartilage Repair for Patients with Underlying Varus Deformity with or without Additional High Tibial Osteotomy: A Propensity Score-Matched Study Based on the German Cartilage Registry (KnorpelRegister DGOU). Cartilage 2021; 13:1206S-1216S. [PMID: 33371734 PMCID: PMC8808839 DOI: 10.1177/1947603520982347] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
BACKGROUND Even though realignment procedures have gained popularity as concomitant techniques in cartilage repair approaches with underlying malalignment, the clinical efficacy has not been proven to full extent. METHODS Out of 5474 patients from the German Cartilage Registry, 788 patients with focal cartilage defects on the medial femoral condyle having received either no accompanying surgery or high tibial osteotomy (HTO) were identified. After a 1:1 propensity score matching, outcome of 440 patients was evaluated using KOOS (Knee Injury and Osteoarthritis Outcome Score), VAS (visual analogue scale), and satisfaction during the 3-year follow-up. RESULTS Patients having received a concomitant HTO had significantly higher postoperative KOOS values (12 months: 67.26 ± 15.69 vs.75.10 ± 16.12, P = 0.001; 24 months: 67.14 ± 23.85 vs. 77.11 ± 16.50, P = 0.010; 36 months: 74.40 ± 16.57 vs. 81.75 ± 14.22, P = 0.023) and lower pain levels (6 months: 3.43 ± 2.18 vs. 2.89 ± 2.15, P = 0.009; 12 months: 3.64 ± 2.20 vs. 2.17 ± 1.96, P < 0.001; 24 months: 4.20 ± 3.12 vs. 2.94 ± 2.45, P = 0.005; 36 months: 3.20 ± 2.18 vs. 2.02 ± 1.98, P = 0.003). One and 3 years postoperatively, concomitant HTO led to significantly higher satisfaction in patients. These advantages of accompanying HTO were also seen in the group of patients with a varus deformity of 5° or more, in which pain levels without concomitant HTO even increased during the 3-year follow-up. CONCLUSION The results of the present study underline the importance and safety of concomitant HTO in patients with cartilage defects and varus deformity. HTO should therefore be considered and recommended generously in patients with focal cartilage defects of the medial femoral condyle and varus deformity.
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Affiliation(s)
- Svea Faber
- OCM
- Orthopädische Chirurgie München,
Munich, Germany
| | - Peter Angele
- Sporthopaedicum, Berlin, Germany,Sporthopaedicum, Straubing,
Germany,Sporthopaedicum, Regensburg,
Germany,Klinik für Unfallchirurgie,
Universitätsklinikum, Regensburg, Bayern, Germany
| | - Johannes Zellner
- Klinik für Unfallchirurgie,
Caritas-Krankenhaus St. Josef Regensburg, Bayern, Germany
| | - Gerrit Bode
- Sporthopaedicum, Berlin, Germany,Sporthopaedicum, Straubing,
Germany,Sporthopaedicum, Regensburg,
Germany,Klinik für Orthopädie und Traumatologie,
Universitätsklinikum Freiburg, Baden-Württemberg, Germany
| | | | - Philipp Niemeyer
- OCM
- Orthopädische Chirurgie München,
Munich, Germany,Klinik für Orthopädie und Traumatologie,
Universitätsklinikum Freiburg, Baden-Württemberg, Germany,Philipp Niemeyer, OCM
- Orthopädische
Chirurgie München, Steinerstrasse 6, Munich, 812306, Germany.
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Lee SJ, Kim JH, Choi W. Factors related to the early outcome of medial open wedge high tibial osteotomy: coronal limb alignment affects more than cartilage degeneration state. Arch Orthop Trauma Surg 2021; 141:1339-1348. [PMID: 33502575 DOI: 10.1007/s00402-021-03769-4] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/15/2020] [Accepted: 01/04/2021] [Indexed: 02/06/2023]
Abstract
INTRODUCTION This study aimed to identify possible factors influencing the early outcome after medial open wedge high tibial osteotomy (MOWHTO). MATERIALS AND METHODS A total of 87 MOWHTO cases with a minimum of 2-year follow-up and second-look arthroscopic results available were enrolled. The cartilage degeneration state was evaluated by the International Cartilage Repair Society (ICRS) grading. Radiographic parameters including the hip-knee-ankle axis (HKA), medial proximal tibia angle (MPTA), posterior tibial slope, patellar height, mechanical lateral distal femoral angle (LDFA), joint line convergence angle (JLCA), joint line obliquity (JLO), and weight-bearing line ratio (WBLR) were measured. The pre-operative arthritic change was evaluated by Kellgren-Lawrence (KL) classification. According to the post-operative HKA, knees were divided into three (Under/Optimal/Over-correction) subgroups. Subjective International Knee Documentation Committee (IKDC) scores were evaluated and factors related to post-operative IKDC scores were analyzed. RESULTS The pre-operative HKA (P = 0.002), post-operative HKA (P = 0.007), pre-operative MPTA (P = 0.011), and pre-operative WBLR (P = 0.031) were significantly related to the post-operative IKDC score. Cartilage degeneration states evaluated from first and second-look arthroscopy were not associated with post-operative IKDC score. Subgroup analysis revealed that the Under-correction group had significantly lower post-operative IKDC scores compared to the Optimal and Over-correction group (P = 0.012 and P = 0.030, respectively). CONCLUSION Our result suggests that a sub-optimal correction of coronal limb alignment negatively affects the early outcome of MOWHTO. On the other hand, the effect of the degree of cartilage degeneration was not significant.
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Affiliation(s)
- Sang-June Lee
- Department of Orthopaedic Surgery, CHA Bundang Medical Center, CHA University School of Medicine, 59 Yatap-ro, Bundang-gu, Seongnam, 13496, Korea
| | - Jae-Hwa Kim
- Department of Orthopaedic Surgery, CHA Bundang Medical Center, CHA University School of Medicine, 59 Yatap-ro, Bundang-gu, Seongnam, 13496, Korea
| | - Wonchul Choi
- Department of Orthopaedic Surgery, CHA Bundang Medical Center, CHA University School of Medicine, 59 Yatap-ro, Bundang-gu, Seongnam, 13496, Korea.
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