Management of Fibrous Dysplasia of Proximal Femur by Internal Fixation Without Grafting: A Retrospective Study of 19 Patients.

Introduction: This paper assesses whether treating patients with fibrous dysplasia of proximal femur by internal fixation with correction of the deformity, if present, without grafting is enough or not.

Methods: This study is a retrospective study using patient's medical records, including analysis of 19 patients with fibrous dysplasia of proximal femur treated by internal fixation only and followed up between 2000 and 2017 for at least 2 years. Epidemiologic data, clinical manifestations, radiologic and histologic investigations, surgery, functional outcomes, and complications in these patients were analyzed.

Results: The study included 12 male patients and 7 female patients, with a mean age of 20.74 years. Of these, two patients presented with pathologic fractures, two presented with shepherd's crook deformity, and the remaining presented with hip pain and limping. Implants used for internal fixation were intramedullary nail in four patients, dynamic hip screw in eight patients, cannulated screws in four patients, broad dynamic compression plate in two patients, and narrow dynamic compression plate in one patient. The mean follow-up period was 53.58 months. Four patients had postoperative complications. The mean Musculoskeletal Tumor Society score was 27.63 points.

Discussion: The optimal management option for fibrous dysplasia of proximal femur is debatable. We suggest that internal fixation without grafting has a good local control and satisfactory functional long-term outcome.