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The Journal of Bone & Joint Surgery British Volume
Vol. 74-B, Issue 4 | Pages 518 - 522
1 Jul 1992
Kroon P Freeman M

We studied two groups of femoral hip prostheses: 43 TiAlV ridged press-fit stems, and 26 with similar stems coated with hydroxyapatite on the proximal half. At one year, radiological measurement showed a mean downward migration of 0.99 mm for the TialV prostheses and 0.12 mm for the HA-coated prostheses (p = 0.0002). Hydroxyapatite coating appeared to provide effective bio-active supplementary fixation.