Knee Surgery & Related Research (Jul 2022)

Distal femoral osteotomy versus lateral unicompartmental arthroplasty for isolated lateral tibiofemoral osteoarthritis with intra-articular and extra-articular deformity: a propensity score-matched analysis

  • Gianluca Piovan,
  • Luca Farinelli,
  • Daniele Screpis,
  • Venanzio Iacono,
  • Lorenzo Povegliano,
  • Marco Bonomo,
  • Ludovica Auregli,
  • Claudio Zorzi

DOI
https://doi.org/10.1186/s43019-022-00164-0
Journal volume & issue
Vol. 34, no. 1
pp. 1 – 9

Abstract

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Abstract Purpose Lateral unicompartmental arthroplasty (UKA) and distal femoral osteotomy (DFO) represent surgical solutions in cases of valgus malalignment and isolated lateral osteoarthritis (OA) of the knee. The aim of the present study was to assess the clinical results, complications, and the overall postoperative alignment of a series of DFO and lateral UKA with a minimum 2-year follow-up in active middle-aged patients. Methods Patients with valgus knee and isolated lateral OA who underwent opening-wedge DFO or UKA from 2017 to 2019 were reviewed. Each patient was characterized by a joint line convergence angle (JLCA) > 3° and mechanical lateral distal femoral angle (mLDFA) 3. Conclusion UKA and DFO represent an effective treatment in lateral knee OA with intra-articular and extra-articular deformity. Both surgeries were able to provide a significant and comparable clinical improvement. Level of evidence: III, comparative retrospective cohort study.

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