Abstract
Purpose
A varus-producing medial closing wedge high tibial osteotomy (MCWHTO) is an uncommon procedure. The aim of this retrospective study was to assess the survivorship and prevalence of post-operative subjective knee laxity and satisfaction in a large cohort of patients with a MCWHTO performed without a MCL-reefing procedure.
Methods
All patients (n = 176) who underwent a MCWHTO in our clinic between 2008 and 2016 were approached to participate. After review of patient charts, questionnaires were sent to willingly patients. Primary outcome was the survivorship of the MCWHTO; secondary outcome was patient-reported instability and satisfaction.
Results
One-hundred and thirteen patients participated in the study. The 5-year survival rate of the MCWHTO was almost 80%. A total of 77% of the patients was satisfied with the treatment. With regard to post-operative subjective knee laxity, 26% of the patients experienced instability of the knee post-operation. Instability was significantly correlated with the KOOS domains, the Lysholm score, the IKDC knee function score and the Physical and Mental Health Domains of the SF-36.
Conclusion
Medial closing wedge high tibial osteotomy provides good results regarding survivorship and patient satisfaction for patients with a valgus deformity which is located in the proximal tibia. Clinically relevant is that in the surgical technique without MCL-reefplasty instability is significantly correlated with worse patient-reported outcome measures. The addition of a MCL reefing procedure will improve outcome in selected patients.
Level of evidence
III.
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Abbreviations
- BMI:
-
Body mass index
- HKA:
-
Hip–knee–ankle
- HTO:
-
High tibial osteotomy
- IKDC:
-
International Knee Documentation Committee
- KOOS:
-
Knee Injury and Osteoarthritis Outcome Score
- MCL:
-
Medial collateral ligament
- MCWHTO:
-
Medial closing wedge high tibial osteotomy
- NRS:
-
Numeric rating scale
- PROMS:
-
Patient-reported outcome measurement scores
- SF-36:
-
Short Form 36
- TKA:
-
Total knee arthroplasty
- QoL:
-
Quality of life
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WvL was responsible for data collection and interpretation, assisted in the study design and drafted the manuscript; BvG conducted the telephone calls, was responsible for data acquisition and performed the statistical analysis and wrote the method and results section; GK revised the manuscript and assisted with study design and result interpretations; RvH was the project supervisor and responsible for the study design, performed most of the surgeries, assisted in writing and revised the manuscript. All authors read and approved the final manuscript.
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The first author has received a contribution from the Marti Keuning-Eckhardt Stichting (Stichting MKE) to conduct this research. None of the other authors have anything to declare.
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van Lieshout, W.A.M., van Ginneken, B.J.T., Kerkhoffs, G.M.M.J. et al. Medial closing wedge high tibial osteotomy for valgus tibial deformities: good clinical results and survival with a mean 4.5 years of follow-up in 113 patients. Knee Surg Sports Traumatol Arthrosc 28, 2798–2807 (2020). https://doi.org/10.1007/s00167-019-05480-9
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DOI: https://doi.org/10.1007/s00167-019-05480-9