Functional Outcomes and Survivorship of Distal Femoral Osteotomy with Cartilage Restoration of the Knee

Abstract Introduction Few studies have reported on functional outcome and survivorship of simultaneous distal femoral osteotomy (DFO) and cartilage restoration techniques, including lateral femoral condyle osteochondral allograft transplantation (OCA). Objectives The purpose of this investigation is therefore to evaluate short-term outcomes, mid-term outcomes and satisfaction in patients receiving OCA and DFO. Methods A registry of consecutive patients undergoing DFO with concomitant OCA between 2004 and 2017 was retrospectively reviewed. Patient records meeting inclusion criteria were reviewed to collect baseline demographic data; both pre-and post-operative radiographs were reviewed. Patients were contacted to complete post-operative outcome questionnaires. Subsequent surgical history and patient satisfaction were also assessed. The post-operative outcomes obtained were compared to prospectively collected pre-operative outcome scores.  Outcomes were compared using paired t-testing, with statistical significance defined as p Results A total of 24 patients were identified, of which 17 (70.8%) completed follow-up at a mean of 7.13 years (range, 2-14.2 years) after surgery. At final follow-up, there were significant improvements in IKDC (p Conclusion In young, active patients with valgus deformity and lateral chondral defects of the knee, DFO with concomitant OCA can significantly improve functional scores compared to baseline at a minimum of two years after surgery. Study Design Case Series, Level of Evidence IV