Abstract
Summary: Changes in the design and manufacturing of hip resurfacing arthroplasty implants have led to resurgence in their use, despite poor results and high failure rates of earlier prostheses. Contemporary implants use a metal-on-metal design that has shown promising midterm survivorship. Hip resurfacing arthroplasty provides appropriately selected patients with a highly functional hip, with the advantage of preserving proximal femoral bone. Hip resurfacing arthroplasty is a technically challenging surgery, the success of which is partially dependent on proper implant position and alignment. Computer-assisted surgery can help the surgeon attain these goals by providing real-time assessment of the position of the joint and implant, permitting intraoperative adjustments to ensure optimal alignment of the final fixed implant. We describe the surgical technique as well as the radiographic and clinical outcomes of 148 implants in 134 patients who underwent computer-assisted hip resurfacing arthroplasty.
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