Computer navigation has been shown to decrease the variance of component positioning in primary THR. The cost of a navigation system in the U.S. however can exceed $200,000 in capital costs and $300–850 a case for disposables. Our objective was to assess the cost-utility of a hip navigation system. A review of the literature on costs and times for primary THR was done. Consecutive THR were done with an infrared navigation system. Total surgical time from incision to final skin closure and intra-operative time associated with the navigation process were recorded. Professional fees and the costs of revision surgery were estimated.INTRODUCTION
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