Computer navigated hip resurfacing for patients with abnormal femoral anatomy.

Hip resurfacing is a technically demanding alternative to total hip arthroplasty. The use of traditional jigs for placement of the femoral guidewire can lead to preparatory errors that may predispose the resurfacing construct to premature failure. Computer navigation is a tool that can be used to minimize the incidence of inadequate to detrimental preparation of the femoral head and improve the accuracy of component placement. Computer navigation not only shows promise in routine cases of hip resurfacing but also in those cases that are technically challenging. The current study demonstrated the utility of imageless computer navigation in placement of the femoral component for patients presenting with abnormal femoral anatomy.