Early experience with the Depuy Proxima short stem in total hip arthroplasty.

Bone saving hip athroplasty is a reasonable option for younger active patients, as they are potential candidates for subsequent revision arthroplasty. In this clinical and radiological study we have evaluated our first 41 consecutive cases of total hip arthroplasty including a DePuy Proxima short stem. Harris Hip Scores (HHS) were calculated preoperatively, and 6,12 and 24 months postoperatively. Mean age at surgery was 49 years (range : 35 to 60), mean follow-up was 26 months (range: 13 to 44). Mean Harris Hip scores increased by 39 and 50 points respectively at 6 and 24 months follow-up. No radiological loosening or migration was observed. In carefully selected young patients when resurfacing is contraindicated, use of the Proxima short stem appears as a simple and effective option for THA. However, longer follow-up time is required to analyse the results and to confirm the durability of the observed clinical out-comes.