{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,14]],"date-time":"2026-07-14T03:21:20Z","timestamp":1783999280498,"version":"3.55.0"},"reference-count":39,"publisher":"Wiley","issue":"2","license":[{"start":{"date-parts":[[2024,8,6]],"date-time":"2024-08-06T00:00:00Z","timestamp":1722902400000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Knee surg. sports traumatol. arthrosc."],"published-print":{"date-parts":[[2025,2]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:sec><jats:title>Purpose<\/jats:title><jats:p>This study aimed (1) to determine complications and survival rates of lateral opening wedge distal femoral osteotomy (LOW\u2010DFO) in the long term, (2) to assess their clinical outcomes in the long term and (3) to identify risk factors of failure.<\/jats:p><\/jats:sec><jats:sec><jats:title>Methods<\/jats:title><jats:p>Between 1991 and 2011, 62 LOW\u2010DFOs were performed in the same department. Inclusion criteria were all isolated LOW\u2010DFO performed for isolated lateral tibiofemoral osteoarthritis and valgus malalignment, with a minimum 10\u2010year follow\u2010up. Thirty\u2010eight patients were included, with a mean age of 48\u2009\u00b1\u20099 years. All patients had clinical and radiological assessments. The survival curves were calculated based on the following endpoints: unicompartmental or total knee arthroplasty.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>The mean follow\u2010up was 15.2\u2009\u00b1\u20094.4 [10\u201329] years. The mean preoperative mechanical FemoroTibial Axis (mFTA) was 188.8\u00b0\u2009\u00b1\u20093.2\u00b0 [184\u00b0\u2013197\u00b0], primarily due to femur deformity (mean lateral distal femoral axis [LDFA] 83.2\u00b0\u2009\u00b1\u20092.8\u00b0). Bone union was achieved in 89.5% of patients (<jats:italic>n<\/jats:italic>\u2009=\u200934) at a mean delay of 6.5\u2009\u00b1\u20096.7 months. The complication rate was 26% (five stiffness, one nonunion, three secondary displacements and one deep vein thrombosis). Nine revision surgeries (24%) were recorded. Survival rates at 5 and 10 years were 92.1% and 78.9%, respectively. The mean delay between DFO and total knee arthroplasty (TKA) was 11.6\u2009\u00b1\u20095.7 [1\u201327] years. Nineteen patients (50%) were free of TKA at the last follow\u2010up. KSS scores were improved significantly. Return to sports was obtained in 92% of cases (<jats:italic>n<\/jats:italic>\u2009=\u200935), with a mean delay of 11\u2009\u00b1\u20098 months. Seventy\u2010four per cent of patients were satisfied or very satisfied with the surgery. Eighty\u2010four per cent would be willing to undergo the surgery again. Older age (<jats:italic>p<\/jats:italic>\u2009=\u20090.032) was a significant risk factor for TKA conversion.<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusion<\/jats:title><jats:p>LOW\u2010DFO is an efficient procedure to manage lateral knee osteoarthritis in young patients with valgus deformity, with a good survival rate at 10 years and high patient satisfaction.<\/jats:p><\/jats:sec><jats:sec><jats:title>Level of Evidence<\/jats:title><jats:p>Level III.<\/jats:p><\/jats:sec>","DOI":"10.1002\/ksa.12404","type":"journal-article","created":{"date-parts":[[2024,8,6]],"date-time":"2024-08-06T06:34:36Z","timestamp":1722926076000},"page":"675-685","source":"Crossref","is-referenced-by-count":7,"title":["Ten\u2010year minimal follow\u2010up of lateral opening wedge distal femoral osteotomy for lateral femorotibial osteoarthritis: Good survivorship and high patient 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