Surgical treatment of fibrous dysplasia in the proximal femur

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Abstract
The aim of this study was to summarize oncological and functional results and to investigate surgical treatment methods and efficacies by conducting a retrospective study of patients with fibrous dysplasia (FD) in the proximal femur. A total of 15 patients with FD in the proximal femur were selected. Among them, 12 cases were monostotic and 3 cases were polyostotic. In addition, 2 cases were accompanied by shepherd's crook deformity. All cases received internal fixation following focus curettage and impaction grafting. Among them, valgus osteotomy was conducted for 2 cases of shepherd's crook deformity. All patients were followed up for 12‑32 months. For 2 patients with shepherd's crook deformity in the proximal femur, the collodiaphysial angle was recovered after an orthopedic procedure following osteotomy. In addition, no patient presented with postoperative recurrent lesions. At 3 months following surgery, local bone resorption was visible in the bone grafting area. Between 8 and 12 months after surgery, the bones in the bone grafting area had healed, pain had disappeared and gaits were nearly normal. An effective internal fixation following thorough focus curettage and allograft bone transplantation is an effective method of treating FD in the proximal femur. For patients with shepherd's crook deformity, it is also necessary to perform valgus osteotomy to recover hip joint function.

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