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Background:   Aneurysmal bone cyst (ABC) is an aggressive benign lesion that may sometimes be difficult to treat. Lesions that occur in the proximal femur require to be addressed aggressively because of the high rate of local recurrence and the risk of fracture. Few articles report the experience of management of ABC in the proximal femur. This location presents a surgical challenge due to its anatomical and biomechanical peculiarity.Methods:   We retrospectively reviewed 16 cases with ABC in the proximal femur that were treated in our institution between 2005 and 2014, utilizing extended curettage and liquid nitrogen as adjuvant therapy and reconstruction using nonvascularized autogenous fibular strut graft. The mean follow-up period was 50.5 months. Five cases presented as recurrent cases, while four cases presented with pathological fractures.Results:   The functional score ranged from 70 to 90 on modified Musculoskeletal Tumor Society score with a mean score of 81.25, which is considered to be excellent function. Time for graft incorporation ranged from 10 to 12 weeks. One case got local recurrence, and one case got early surgical site infection.Conclusions:   Extended curettage and cryotherapy represent a recommended approach for management of ABC in the proximal femur with favorable results.

journal of orthopaedic surgery

Review of 16 cases of aneurysmal bone cyst in the proximal femur treated by extended curettage and cryosurgery with reconstruction using autogenous nonvascularized fibula graft