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Resurfacing arthroplasty of the hip in osteopetrosis

¹ Department of Orthopaedic Surgery, Maisonneuve-Rosemont Hospital, 5345 Boul L’Assomption, Suite 55, Montréal, Québec, Canada H1T 4B3.

Correspondence should be sent to Dr P.-A. Vendittoli; e-mail: pa.vendittoli{at}videotron.ca

A 34-year-old woman with a benign form of osteopetrosis developed osteoarthritis of the hip. In order to avoid the difficulties associated with inserting the femoral component of a conventional total hip arthroplasty, a hybrid metal-on-metal resurfacing was performed. There were several technical challenges associated with the procedure, including the sizing of the component, press-fit fixation of the acetabular component and femoral head preparation, as well as trying to avoid a fracture. No surgical complication occurred. After more than a year following surgery, the patient showed excellent clinical function and remained satisfied with the outcome. We conclude that the hybrid metal-on-metal resurfacing arthroplasty represents a valuable option for the treatment of patients with osteopetrosis and secondary hip osteoarthritis.