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Published in: BMC Musculoskeletal Disorders 1/2011

Open Access 01-12-2011 | Research article

Closing-wedge high tibial osteotomy: survival and risk factor analysis at long-term follow up

Authors: Turgay Efe, Gafar Ahmed, Thomas J Heyse, Ulrich Boudriot, Nina Timmesfeld, Susanne Fuchs-Winkelmann, Bernd Ishaque, Stefan Lakemeier, Markus D Schofer

Published in: BMC Musculoskeletal Disorders | Issue 1/2011

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Abstract

Background

Closing-wedge high tibial osteotomy (HTO) is successful for the treatment of medial osteoarthritis with varus malalignment. Preoperative risk factors for HTO failure are still controversial. The aim of this study was to elucidate the outcome and assess the influence of risk factors on long term HTO survival.

Methods

199 patients were retrospectively studied with a mean follow-up period of 9.6 years after HTO. HTO failure was defined as the need for conversion to TKA. Survival was analyzed with the Kaplan-Meier method. Knee function was evaluated by the Hospital for Special Surgery (HSS) score. HTO-associated complications were also assessed. Univariate, multivariate, and logistic regression analysis were performed to evaluate the influence of age, gender, BMI, preoperative Kellgren-Lawrence osteoarthritis grade, and varus angle on HTO failure.

Results

39 complications were recorded. Thus far, 36 HTOs were converted to TKA. The survival of HTO was 84% after 9.6 years. Knee function was considered excellent or good in 64% of patients. A significant preoperative risk factor for HTO failure was osteoarthritis, Kellgren-Lawrence grade >2.

Conclusion

HTO provides good clinical results in long-term follow-up. Preoperative osteoarthritis Kellgren-Lawrence grade >2 is a significant predictive risk factor for HTO failure. Results of HTO may be improved by careful patient selection. Complications associated with HTO should not be underestimated.
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Metadata
Title
Closing-wedge high tibial osteotomy: survival and risk factor analysis at long-term follow up
Authors
Turgay Efe
Gafar Ahmed
Thomas J Heyse
Ulrich Boudriot
Nina Timmesfeld
Susanne Fuchs-Winkelmann
Bernd Ishaque
Stefan Lakemeier
Markus D Schofer
Publication date
01-12-2011
Publisher
BioMed Central
Published in
BMC Musculoskeletal Disorders / Issue 1/2011
Electronic ISSN: 1471-2474
DOI
https://doi.org/10.1186/1471-2474-12-46

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