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The Bone & Joint Journal

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The Journal of Bone & Joint Surgery British Volume
Vol. 79-B, Issue 4 | Pages 603 - 608
1 Jul 1997
Massoud SN Hunter JB Holdsworth BJ Wallace WA Juliusson R

We have studied aseptic loosening of the femoral component in 76 patients with primary total hip replacement using the Capital prosthesis. The mean follow-up was 26 months (10 to 37).

Twelve femoral components (16%) were definitely and eight (10%) were possibly loose. They were characterised by a thin cement mantle (p < 0.001) and excessive residual cancellous bone in the proximomedial region (p < 0.01).

We recommend that the cement mantle around the prosthesis should be 2 to 3 mm and that further long-term studies are needed to evaluate the wear properties of titanium-nitride-coated titanium femoral heads.