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KMID : 1144520220340010034
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Knee Surgery & Related Research
2022 Volume.34 No. 1 p.34 ~ p.34
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Distal femoral osteotomy versus lateral unicompartmental arthroplasty for isolated lateral tibiofemoral osteoarthritis with intra-articular and extra-articular deformity: a propensity score-matched analysis
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Piovan Gianluca
Farinelli Luca
Screpis Daniele
Iacono Venanzio
Povegliano Lorenzo
Bonomo Marco
Auregli Ludovica
Zorzi Claudio
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Abstract
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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)?
Results: The DFO and lateral UKA groups consisted of 29 patients each. No statistically significant differences in gender, age, body mass index (BMI), length of follow-up, or limb deformity were reported between the two groups. In the DFO group, OKS was reported to improve from 27.51 to 38.59 (p??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.
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KEYWORD
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Opening-wedge distal femoral osteotomy, Lateral unicompartmental arthroplasty, Lateral knee osteoarthritis, Middle-aged patients
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