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Clinical Orthopaedics and Related Research®

, Volume 472, Issue 1, pp 105–110 | Cite as

Total Knee Arthroplasty After High Tibial Osteotomy: No Differences Between Medial and Lateral Osteotomy Approaches

  • Stephen Preston
  • James Howard
  • Douglas Naudie
  • Lyndsay Somerville
  • James McAuley
Symposium: 2013 Knee Society Proceedings

Abstract

Background

High tibial osteotomy (HTO) has long been accepted as an effective treatment for unicompartmental osteoarthritis of the knee in young, active adults. For varus knees, the two most commonly performed valgus-producing HTOs are the lateral closing wedge and the medial opening wedge. Regardless of technique, some HTOs fail and are converted to TKA. To our knowledge, no studies have directly compared TKAs done after lateral closing-wedge osteotomies to those done after medial opening-wedge osteotomies.

Questions/purposes

We compared pain- and function-related outcomes and survivorship of TKAs in patients who previously underwent medial opening-wedge and lateral closing-wedge HTOs.

Methods

We reviewed our institutional database to identify all patients having undergone a HTO with subsequent conversion to TKA and identified 188 lateral closing-wedge HTOs and 77 medial opening-wedge HTOs. Mean followup was 88 months (range, 3–264 months) for the lateral closing-wedge HTO cohort and 59 months (range, 3–180 months) for the medial opening-wedge cohort. SF-12, WOMAC, and Knee Society Scores, as well as survivorship at 5 years, were compared between the two groups. Statistical analysis was completed using the independent-samples t-test.

Results

No differences were found between groups in postoperative SF-12 scores (p = 0.77 for the mental component summary score and p = 0.21 for the physical component summary score), WOMAC scores (p = 0.67), or Knee Society Scores (p = 0.80). No difference was found in survivorship between groups at 5 years.

Conclusions

Our results suggest there is no difference in functional outcomes or survivorship of TKA in patients having previously undergone medial opening-wedge and lateral closing-wedge HTOs.

Level of Evidence

Level III, therapeutic study. See Instructions for Authors for a complete description of levels of evidence.

Keywords

High Tibial Osteotomy Knee Society Score Mental Component Summary Score Physical Component Summary Score WOMAC Score 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© The Association of Bone and Joint Surgeons® 2013

Authors and Affiliations

  • Stephen Preston
    • 1
  • James Howard
    • 1
  • Douglas Naudie
    • 1
  • Lyndsay Somerville
    • 1
  • James McAuley
    • 1
  1. 1.London Health Sciences Center-University HospitalLondonCanada

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