CASE: A 60-year-old woman presented 18 years following a conservatively managed right tibial proximal metaphyseal fracture, with knee osteoarthritis and an extra-articular tibial varus deformity. During total knee arthroplasty, excessive lateral laxity was noted in both extension and flexion. Lateral femoral epicondylar osteotomy (LFEO) was performed
the bone block was duly transported and secured. Optimal gap balance was attained. The osteotomy site showed radiologic union 6 months postoperatively. At the 3-year follow-up, her Knee Society Score and functional score were 92 and 90, respectively. CONCLUSION: LFEO is a valuable tool for arthroplasty surgeons and can result in good outcomes.