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Sadoghi P, Widhalm HK, Fischmeister MF, Leitner L, Leithner A, Fischerauer SF. Delayed Meniscus Repair Lowers the Functional Outcome of Primary ACL Reconstruction. J Clin Med 2024; 13:1325. [PMID: 38592690 PMCID: PMC10931753 DOI: 10.3390/jcm13051325] [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: 12/22/2023] [Revised: 02/03/2024] [Accepted: 02/10/2024] [Indexed: 04/10/2024] Open
Abstract
BACKGROUND Our purpose was to evaluate whether the time of intervention and the type of meniscus surgery (repair vs. partial meniscectomy) play a role in managing anterior cruciate ligament (ACL) reconstructions with concurrent meniscus pathologies. METHODS We performed a prospective cohort study which differentiated between early and late ACL reconstructions with a cut-off at 3 months. Patients were re-evaluated after 2 years. RESULTS Thirty-nine patients received an operation between 2-12 weeks after the injury, and thirty patients received the surgery between 13-28 weeks after trauma. The strongest negative predictive factor of the International Knee Documentation Committee subjective knee form in a hierarchical regression model was older age (ß = -0.49 per year; 95% CI [-0.91; -0.07]; p = 0.022; partial R2 = 0.08)). The strongest positive predictive factor was a higher preoperative Tegner score (ß = 3.6; 95% CI [0.13; 7.1]; p = 0.042; partial R2 = 0.07) and an interaction between meniscus repair surgery and the time of intervention (ß = 27; 95% CI [1.6; 52]; p = 0.037; partial R2 = 0.07), revealing a clinical meaningful difference as to whether meniscus repairs were performed within 12 weeks after trauma or were delayed. There was no difference whether partial meniscectomy was performed early or delayed. CONCLUSIONS Surgical timing plays a crucial role when surgeons opt for a meniscus repair rather than for a meniscectomy.
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Affiliation(s)
- Patrick Sadoghi
- Department of Orthopaedics and Trauma, Medical University of Graz, Auenbruggerplatz 5, 8036 Graz, Austria; (P.S.); (L.L.); (A.L.)
| | - Harald K. Widhalm
- Clinical Division of Traumatology, Department of Orthopedics and Traumatology, Medical University of Vienna, 1090 Vienna, Austria;
| | | | - Lukas Leitner
- Department of Orthopaedics and Trauma, Medical University of Graz, Auenbruggerplatz 5, 8036 Graz, Austria; (P.S.); (L.L.); (A.L.)
| | - Andreas Leithner
- Department of Orthopaedics and Trauma, Medical University of Graz, Auenbruggerplatz 5, 8036 Graz, Austria; (P.S.); (L.L.); (A.L.)
| | - Stefan F. Fischerauer
- Department of Orthopaedics and Trauma, Medical University of Graz, Auenbruggerplatz 5, 8036 Graz, Austria; (P.S.); (L.L.); (A.L.)
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Mehl J, Feucht M, Achtnich A, Imhoff AB, Niemeyer P, Angele P, Zinser W, Spahn G, Loer I, Kniffler H, Schauf G, Schmitt A. Autologous chondrocyte implantation combined with anterior cruciate ligament reconstruction: similar short-term results in comparison with isolated cartilage repair in ligament intact joints. Knee Surg Sports Traumatol Arthrosc 2022; 30:3249-3257. [PMID: 34626229 PMCID: PMC9464143 DOI: 10.1007/s00167-021-06764-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/13/2021] [Accepted: 09/28/2021] [Indexed: 11/18/2022]
Abstract
PURPOSE Both acute ruptures of the anterior cruciate ligament (ACL) as well as chronic ACL insufficiency show a high association with focal cartilage defects of the knee. However, the results after combined ACL reconstruction and cartilage repair are not well investigated. The aim of the present study was to investigate the short-term outcomes after autologous chondrocyte implantation (ACI) in combination with ACL reconstruction and to compare the results with patients who underwent isolated ACI in ligament intact knees. METHODS All patients who were registered in the German Cartilage Registry with ACI for focal cartilage defects in the knee joint in combination with ACL reconstruction and who completed the 24 month follow-up were included in the study group. A matched-pair procedure according to gender, defect location, defect size, and age was used to create a control group of patients with isolated ACI in ACL intact joints. The Knee Injury and Osteoarthritis Outcome Score (KOOS) and the numeric analog scale for pain (NAS) were used to assess the preoperative state as well as the clinical outcomes 12 and 24 months after surgery. RESULTS A total of 34 patients were included in both the study group (age mean 33.3 ± SD 8.8 years) and the control group (33.6 ± 8.4 years) with a median defect size of 466 (25%-75% IQR 375-600) mm2 and 425 (IQR 375-600) mm2, respectively. In comparison with the preoperative state (median 67, IQR 52-75), the study group showed a significant increase of the total KOOS after 12 months (78, IQR 70-86; p = 0.014) and after 24 months (81, IQR 70-84; p = 0.001). The NAS for pain did not change significantly in the postoperative course. In comparison with the control group there was no significant difference for the total KOOS neither preoperative (control group median 67, IQR 52-73) nor at any postoperative time point (12 months: 82, IQR 67-93; 24 months: 81, IQR 71-91). CONCLUSION The clinical short-term outcomes after ACI at the knee joint in combination with ACL reconstruction are good and similar to the results after isolated ACI in ligament intact knees. LEVEL OF EVIDENCE III.
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Affiliation(s)
- Julian Mehl
- Department of Orthopaedic Sports Medicine, Klinikum rechts der Isar, Technical University, Ismaninger Strasse 22, 81675, Munich, Germany.
| | - Matthias Feucht
- Department of Orthopaedic Surgery, Paulinenhilfe, Diakonieklinikum, Stuttgart, Germany
| | - Andrea Achtnich
- grid.6936.a0000000123222966Department of Orthopaedic Sports Medicine, Klinikum rechts der Isar, Technical University, Ismaninger Strasse 22, 81675 Munich, Germany
| | - Andreas B. Imhoff
- grid.6936.a0000000123222966Department of Orthopaedic Sports Medicine, Klinikum rechts der Isar, Technical University, Ismaninger Strasse 22, 81675 Munich, Germany
| | | | - Peter Angele
- grid.411941.80000 0000 9194 7179Department for Traumatology, University Hospital Regensburg, Regensburg, Germany
| | - Wolfgang Zinser
- Department of Orthopaedic Surgery and Traumatology, St. Vinzenz Hospital, Dinslaken, Germany
| | - Gunter Spahn
- grid.275559.90000 0000 8517 6224Center of Trauma and Orthopaedic Surgery Eisenach, Jena University Hospital, Eisenach, Germany
| | - Ingo Loer
- Orthopaedie in Essen, Essen, Germany
| | | | | | - Andreas Schmitt
- grid.6936.a0000000123222966Department of Orthopaedic Sports Medicine, Klinikum rechts der Isar, Technical University, Ismaninger Strasse 22, 81675 Munich, Germany
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Lane JG. Return to Work After Autologous Chondrocyte Implantation of the Knee in Patients with Workers Compensation Insurance. Cartilage 2021; 13:829S-836S. [PMID: 31731886 PMCID: PMC8808798 DOI: 10.1177/1947603519888001] [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: 11/15/2022] Open
Abstract
OBJECTIVE This retrospective analysis aimed to evaluate patient and defect characteristics on return to work after autologous chondrocyte implantation (ACI) for all patients with workers compensation insurance in our clinic. METHODS Retrospective analysis of medical records of patients with workers compensation treated with ACI in our clinic over 10 years (August 2004 to November 2014). Data were collected on demographics, lesion size and location, number of defects, duration of symptoms, and outcomes. RESULTS A total of 28 patients with 30 ACI procedures were included in this analysis. Patients had a mean age of 40.0 years, were mostly male, and tended to be overweight (mean body mass index = 31.5 kg/m2). Most patients were employed in occupations with high physical demand (85.7%) compared with lower physical demand jobs (14.3%). The mean number of lesions per knee = 1.73. Overall, the mean total surface area of the defect was large (12.6 cm2), with large mean individual lesion size of 7.39 cm2. All 28 patients returned to work in some capacity, with a total of 22 (79%) returning to full work, and 6 (21%) returning to modified work. There were no significant differences in the comparison of patients who returned to full versus modified work, in mean age, body mass index, high versus low physical demand occupation, or lesion characteristics (size, chronicity, or location). CONCLUSIONS Our results demonstrate that in a challenging workers compensation cohort, in patients with multiple large defects, treatment with ACI allows a high percentage of patients to return to their normal vigorous work activities within 9 months to 1 year following cartilage restoration. This study is a level IV retrospective case series.
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Affiliation(s)
- John G. Lane
- Musculoskeletal and Joint Research
Foundation, San Diego, CA, USA
- John G. Lane, Musculoskeletal and Joint
Research Foundation, 3750 Convoy Street #116, San Diego, CA 92111, USA.
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Rambaud AJ, Neri T, Dingenen B, Parker D, Servien E, Gokeler A, Edouard P. The modifying factors that help improve anterior cruciate ligament reconstruction rehabilitation: A narrative review. Ann Phys Rehabil Med 2021; 65:101601. [PMID: 34757010 DOI: 10.1016/j.rehab.2021.101601] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2020] [Revised: 10/04/2021] [Accepted: 10/08/2021] [Indexed: 01/11/2023]
Abstract
BACKGROUND The goal of a rehabilitation programme after anterior cruciate ligament (ACL) reconstruction is to manage a patient's goals and expectations (i.e., returning to physical activities and sports) while minimizing the risk of new injury, particularly a new ACL injury. Although general rehabilitation programmes have been proposed, some factors can lead to adapting each programme to each patient. OBJECTIVE To describe how different variables, including surgical techniques, sports participation, psycho-social and contextual factors can modify the rehabilitation programme. METHODS We performed a narrative review with input from experts in the field (level of evidence 5). CONCLUSIONS Modifying factors of the ACL rehabilitation programme are related to the initial lesion or surgery, to sports, or to psychological or social aspects. Regarding the type of graft, the rehabilitation is mainly different in the early postoperative phase; the other phases are not graft-based but rather goal-based rehabilitation. Depending on the meniscal or cartilage repair, the rehabilitation protocol will initially take priority over the anterior cruciate ligament reconstruction protocol. The ACL reconstruction rehabilitation programme should meet the requirements of the anticipated sports, to optimize the athlete's ability to return to the expected level and minimize the risk of reinjury. Psycho-social and contextual factors must also be considered in rehabilitation care to individualize and optimize each patient's programme.
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Affiliation(s)
- Alexandre Jm Rambaud
- Univ Lyon, UJM-Saint-Etienne, Laboratoire Interuniversitaire de Biologie de la Motricité, EA 7424, F-42023 Saint-Etienne, France; Motion Analysis Lab, Physiotherapy and Sports Medicine Department, Swiss Olympic Medical Center, La Tour Hospital, Meyrin, Switzerland; SFMKS-Lab, Société Française des Masseurs-kinésithérapeutes du Sport, Pierrefitte/Seine, France.
| | - Thomas Neri
- Univ Lyon, UJM-Saint-Etienne, Laboratoire Interuniversitaire de Biologie de la Motricité, EA 7424, F-42023 Saint-Etienne, France; Department of Orthopaedic Surgery, University Hospital of Saint-Etienne, Faculty of medicine Saint-Etienne, France
| | - Bart Dingenen
- Reval Rehabilitation Research Center, Faculty of Rehabilitation Sciences, Hasselt University, Agoralaan A, 3590 Diepenbeek, Belgium
| | - David Parker
- Sydney Orthopaedic Research Institute, Sydney, Australia; The University of Sydney, Sydney, Australia
| | - Elvire Servien
- Univ Lyon, Laboratoire Interuniversitaire de Biologie de la Motricité, EA 7424, F-42023 Lyon, France; Department of orthopaedic surgery and sports medicine, FIFA medical center of excellence, Lyon University Hospital, Lyon, France
| | - Alli Gokeler
- Exercise Science & Neuroscience Unit, Department Exercise & Health, Faculty of Science, Paderborn University, Paderborn, Germany
| | - Pascal Edouard
- Univ Lyon, UJM-Saint-Etienne, Laboratoire Interuniversitaire de Biologie de la Motricité, EA 7424, F-42023 Saint-Etienne, France; Department of Clinical and Exercise Physiology, Sports Medicine Unity, University Hospital of Saint-Etienne, Faculty of medicine, Saint-Etienne. France
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Kaibara T, Kondo E, Matsuoka M, Iwasaki K, Onodera T, Momma D, Seito N, Mikami S, Iwasaki N. Large osteochondral defect in the lateral femoral condyle reconstructed by Atelocollagen-associated autologous chondrocyte implantation combined with anterior cruciate ligament reconstruction. BMC Musculoskelet Disord 2020; 21:494. [PMID: 32718337 PMCID: PMC7385883 DOI: 10.1186/s12891-020-03531-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/13/2020] [Accepted: 07/21/2020] [Indexed: 01/10/2023] Open
Abstract
BACKGROUND Articular surface damage commonly associated with rupture of the anterior cruciate ligament (ACL). Large osteochondral defect, which consists of a severe depression fracture and a large cartilage defect, need to be treated due to deformation of the articular surface as it can impact the clinical outcome of ACL reconstruction. Although autologous chondrocyte implantation is one of the useful options in such cases, it can be questioned whether the reconstruction of the ACL and osteochondral defect should be performed in one procedure alone. CASE PRESENTATION We report a case of a 38-year-old male with a deep depression fracture extending to the edge of the lateral femoral condyle associated with ACL injury after twisting his right knee while skiing. The patient was successfully treated with tissue-engineered cartilage transplantation covered by the periosteum with an iliac bone graft combined with anatomic double-bundle ACL reconstruction. Histopathological examination of the transplanted cartilage taken at second-look arthroscopy showed a cartilage-like tissue in the middle to deep zone in which the extracellular matrix was largely stained with Safranin O. The patient was able to return to his previous level of skiing activity without any experience of knee pain. Magnetic resonance imaging at 4 years after surgery showed that the graft integrated to the border zone and subchondral bone. The operated knee showed negative Lachman test and had a full range of motion. CONCLUSIONS To our knowledge, this is the first report of anatomic double-bundle ACL reconstruction with tissue-engineered cartilage transplantation and an iliac bone graft to restore the lateral edge of the femoral condyle.
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Affiliation(s)
- Takuma Kaibara
- Department of Orthopaedic Surgery, Hokkaido University Graduate School of Medicine, Kita-15, Nish-7, Kita-ku, Sapporo, Hokkaido, 060-8638, Japan
| | - Eiji Kondo
- Center for Sports Medicine, Hokkaido University Hospital, Kita-15, Nish-7, Kita-ku, Sapporo, Hokkaido, 060-8638, Japan.
| | - Masatake Matsuoka
- Department of Orthopaedic Surgery, Hokkaido University Graduate School of Medicine, Kita-15, Nish-7, Kita-ku, Sapporo, Hokkaido, 060-8638, Japan
| | - Koji Iwasaki
- Department of functional reconstruction for the knee joint, Hokkaido University, Kita-15, Nish-7, Kita-ku, Sapporo, Hokkaido, 060-8638, Japan
| | - Tomohiro Onodera
- Department of Orthopaedic Surgery, Hokkaido University Graduate School of Medicine, Kita-15, Nish-7, Kita-ku, Sapporo, Hokkaido, 060-8638, Japan
| | - Daisuke Momma
- Center for Sports Medicine, Hokkaido University Hospital, Kita-15, Nish-7, Kita-ku, Sapporo, Hokkaido, 060-8638, Japan
| | - Naoki Seito
- Department of Orthopaedic Surgery, Hokkaido University Graduate School of Medicine, Kita-15, Nish-7, Kita-ku, Sapporo, Hokkaido, 060-8638, Japan
| | - Susumu Mikami
- Department of Orthopaedic Surgery, Hokkaido Orthopaedic Memorial Hospital, 5-22, 7-Jo 13-Chome, Hiragishi, Toyohira-ku, Sapporo, Hokkaido, 062-0937, Japan
| | - Norimasa Iwasaki
- Department of Orthopaedic Surgery, Hokkaido University Graduate School of Medicine, Kita-15, Nish-7, Kita-ku, Sapporo, Hokkaido, 060-8638, Japan
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Abstract
BACKGROUND Cartilage defects around the knee joint frequently occur in the region of the medial femoral condyle and the retropatellar cartilage surface. The distinction between local cartilage defects and large area degenerative cartilage lesions is very important for both prognosis and surgical therapy. The size and position of the lesion, the underlying pathomechanism and the age of the patient are very important factors which should be considered in the therapy algorithm for optimal cartilage defect restoration. Important cofactors such as stability, long leg axis and muscle balance should be taken into account. AIM Current procedures for cartilage repair of the knee joint and their results are summarized in this article. In addition, the necessity of precise and comprehensive preoperative clinical and radiological diagnostics is displayed to be able to treat co-pathologies in order to enable a successful repair of the cartilage defect. RESULTS AND CONCLUSIONS Preoperative planning of cartilage-repair techniques usually includes x‑ray images and a magnetic resonance imaging (MRI) examination. If MRI is not available, an arthro-computed tomography could be an alternative. Modern and routinely used procedures for cartilage repair at the knee joint are microfracture, autologous matrix-induced chondrogenesis, autologous chondrocyte transplantation, matrix-induced autologous chondrocyte implantation and osteochondral transplantation. Successful surgical cartilage-repair surgeries require a correct and individualized indication, addressing of copathologies and a standardized rehabilitation that is adapted to the surgical procedure. Evidence-based criteria for an exact time point for the return to sports according to individually operative cartilage repair techniques currently do not exist.
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Ogura T, Bryant T, Mosier BA, Minas T. Autologous Chondrocyte Implantation for Bipolar Chondral Lesions in the Tibiofemoral Compartment. Am J Sports Med 2018. [PMID: 29533678 DOI: 10.1177/0363546518756977] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
BACKGROUND Treating bipolar chondral lesions in the tibiofemoral (TF) compartment with cartilage repair procedures is challenging, and a suitable treatment remains unclear. PURPOSE To evaluate clinical outcomes after autologous chondrocyte implantation (ACI) for the treatment of bipolar chondral lesions in the TF compartment. STUDY DESIGN Case series; Level of evidence, 4. METHODS We evaluated 57 patients who underwent ACI for the treatment of symptomatic bipolar chondral lesions in the TF compartment by a single surgeon between October 1995 and June 2014. One patient did not return for follow-up. Thus, 56 patients (58 knees) were included with a minimum of 2 years' follow-up. A mean of 3.1 lesions per knee were treated, representing a mean total surface area of 16.1 cm2 (range, 3.2-44.5 cm2) per knee. Bipolar lesions were present in the medial compartment (32 knees) and in the lateral compartment (26 knees). Patients were evaluated with the modified Cincinnati Knee Rating Scale, visual analog scale for pain, Western Ontario and McMaster Universities Osteoarthritis Index, and Short Form-36. Patients also answered questions regarding self-rated knee function and satisfaction with the procedure. Standard radiographs were evaluated with the Kellgren-Lawrence grading system. RESULTS The survival rate was 80% at 5 years and 76% at 10 years. A significantly better survival rate was found in patients with the use of a collagen membrane than periosteum (97% vs 61% at 5 years, respectively; P = .0014). Of 46 knees with retained grafts, all functional scores significantly improved postoperatively, with a very high satisfaction rate (91%) at a mean of 8.3 ± 5.1 years (range, 2-20 years) after ACI. At last follow-up, 24 of 46 successful knees were radiographically assessed (mean, 5.5 ± 4.0 years [range, 2.0-18.7 years]) and showed no significant osteoarthritis progression ( P = .3173). Outcomes for 12 patients were considered as failures at a mean of 4.1 years. Of these, 9 patients were converted to partial or total knee arthroplasty at a mean of 4.4 years. Two patients underwent revision ACI at 5 and 17 months. The other 1 patient did not require revision surgery. CONCLUSION Our study showed that ACI for the treatment of bipolar chondral lesions in the TF compartment provided successful clinical outcomes in patients with retained grafts and possibly prevented or delayed osteoarthritis progression at midterm to long-term follow-up. A collagen membrane is more encouraging than periosteum for bipolar lesions in the TF compartment. While addressing the predisposing factors affecting cartilage repair, ACI could be an adequate salvage procedure for bipolar chondral lesions in the TF compartment for the relatively young arthritic patient who wishes to avoid arthroplasty.
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Affiliation(s)
- Takahiro Ogura
- Cartilage Repair Center, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts, USA.,Sports Medicine Center, Funabashi Orthopaedic Hospital, Funabashi, Japan
| | - Tim Bryant
- Cartilage Repair Center, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Brian A Mosier
- Cartilage Repair Center, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts, USA.,Allegheny Health Network, Monroeville, Pennsylvania, USA
| | - Tom Minas
- Cartilage Repair Center, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts, USA
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Pestka JM, Luu NH, Südkamp NP, Angele P, Spahn G, Zinser W, Niemeyer P. Revision Surgery After Cartilage Repair: Data From the German Cartilage Registry (KnorpelRegister DGOU). Orthop J Sports Med 2018; 6:2325967117752623. [PMID: 29450205 PMCID: PMC5808974 DOI: 10.1177/2325967117752623] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
Abstract
Background: Various operative strategies have been introduced to restore the integrity of articular cartilage when injured. The frequency of revision surgery after cartilage regenerative surgery remains incompletely understood. Purpose/Hypothesis: The purpose of this study was to identify the reasons for revision surgery after cartilage regenerative surgery of the knee. We hypothesized that in a large patient cohort, revision rates would differ from those in the current literature. Study Design: Case-control study; Level of evidence, 3. Methods: A total of 2659 complete data sets from the German Cartilage Registry were available for analyses. In brief, baseline data were provided by the attending physician at the time of index surgery. Follow-up data were collected using a web-based questionnaire inquiring whether patients had needed revision surgery during follow-up, which was defined as the endpoint of the present analysis. Results: A total of 88 patients (3.3%) reported the need for revision surgery as early as 12 months postoperatively. Among the most common causes were arthrofibrosis (n = 27) and infection (n = 10). Female patients showed a significantly greater complication rate (4.5%) when compared with male patients (2.6%; P = .0071). The majority of cartilage lesions were located at the medial femoral condyle (40.2%), with a mean defect size of 3.5 ± 2.1 cm2. Neither the location nor defect size appeared to lead to an increased revision rate, which was greatest after osteochondral autografts (5.2%) and autologous chondrocyte implantation (4.6%). Revision rates did not differ significantly among surgical techniques. Chi-square analysis revealed significant correlations between the number of previous joint surgeries and the need for revision surgery (P = .0203). Multivariate regression analysis further confirmed sex and the number of previous surgeries as variables predicting the need for early revision surgery. Conclusion: The low early revision rates found in this study underline that today’s cartilage repair surgeries are mostly safe. Although invasiveness and techniques differ greatly among the procedures, no differences in revision rates were observed. Specific factors such as sex and the number of previous surgeries seem to influence overall revision rates and were identified as relevant risk factors with regard to patient safety.
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Affiliation(s)
- Jan M Pestka
- Department of Orthopedics and Trauma Surgery, University Medical Center, Albert Ludwigs University of Freiburg, Freiburg, Germany
| | - Nam H Luu
- Department of Orthopedics and Trauma Surgery, University Medical Center, Albert Ludwigs University of Freiburg, Freiburg, Germany
| | - Norbert P Südkamp
- Department of Orthopedics and Trauma Surgery, University Medical Center, Albert Ludwigs University of Freiburg, Freiburg, Germany
| | - Peter Angele
- Department of Traumatology, Regensburg University Hospital, Regensburg, Germany
| | - Gunther Spahn
- Center of Trauma and Orthopaedic Surgery, Jena University Hospital, Eisenach, Germany
| | - Wolfgang Zinser
- Department of Orthopedic Surgery and Traumatology, St Vinzenz Hospital, Dinslaken, Germany
| | - Philipp Niemeyer
- Department of Orthopedics and Trauma Surgery, University Medical Center, Albert Ludwigs University of Freiburg, Freiburg, Germany.,OCM Clinic, Munich, Germany
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