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The Bone & Joint Journal
Vol. 95-B, Issue 4 | Pages 467 - 471
1 Apr 2013
Sandiford N Doctor C Rajaratnam SS Ahmed S East DJ Miles K Butler-Manuel A Shepperd JAN

We present the extended follow-up (≥ 20 years) of a series of fully hydroxyapatite-coated femoral components used in 72 primary total hip replacements (THRs). Earlier results of this cohort have been previously published. All procedures were performed between 1986 and 1991. The series involved 45 women and 15 men with 12 bilateral procedures. Their mean age at the time of surgery was 60 years (46 to 80) and the mean duration of follow-up was 22.5 years (20 to 25). At final follow-up, the mean Merle d’Aubigné and Postel hip scores were 5.5 (4.5 to 6), 3.8 (3.5 to 5) and 3.3 (3.0 to 5.0) for pain, mobility and function, respectively. Of the patients 92% were very satisfied at the time of final follow-up.

There were seven revisions: six of the acetabular component for aseptic loosening and one of both the stem and the acetabular component for loosening due to deep infection. The survival of this prosthesis at 22.5 years with revision for any reason as the endpoint was 91.7% (95% confidence interval (CI) 84 to 99). Survival with aseptic loosening of the stem as the endpoint was 100% (95% CI 90 to 100).

This prosthesis provides pain relief in the long term. Survival of this component is comparable to the best results for primary THR with any means of fixation.

Cite this article: Bone Joint J 2013;95-B:467–71.


The Journal of Bone & Joint Surgery British Volume
Vol. 86-B, Issue 7 | Pages 958 - 961
1 Sep 2004
Dreinhöfer KE Féron J Herrera A Hube R Johnell O Lidgren L Miles K Panarella L Simpson H Wallace WA