O2481 HYDROXYAPATITE TOTAL HIP REPLACEMENT: 4–5 YEAR REVIEW OF A PROSPECTIVE RANDOMISED TRIAL COMPARING PARTIAL AND FULLY COATED STEMS

Hussein Rami; A. Smith; J. Shepperd; H. Apthorp; A. Butler-Manuel

doi:10.1302/0301-620X.86BSUPP_III.0860320a

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O2481 HYDROXYAPATITE TOTAL HIP REPLACEMENT: 4–5 YEAR REVIEW OF A PROSPECTIVE RANDOMISED TRIAL COMPARING PARTIAL AND FULLY COATED STEMS

Hussein Rami
A. Smith
J. Shepperd
H. Apthorp
A. Butler-Manuel

O2481 HYDROXYAPATITE TOTAL HIP REPLACEMENT: 4–5 YEAR REVIEW OF A PROSPECTIVE RANDOMISED TRIAL COMPARING PARTIAL AND FULLY COATED STEMS

Rami H, Smith A, Shepperd J, Apthorp H, Butler-Manuel A. O2481 HYDROXYAPATITE TOTAL HIP REPLACEMENT: 4–5 YEAR REVIEW OF A PROSPECTIVE RANDOMISED TRIAL COMPARING PARTIAL AND FULLY COATED STEMS. Orthop Procs. 2004;86-B(SUPP_III):320-320. doi:10.1302/0301-620X.86BSUPP_III.0860320a

Rami, Hussein, et al. “O2481 HYDROXYAPATITE TOTAL HIP REPLACEMENT: 4–5 YEAR REVIEW OF A PROSPECTIVE RANDOMISED TRIAL COMPARING PARTIAL AND FULLY COATED STEMS.” Orthopaedic Proceedings, vol. 86-B, no. SUPP_III, 2004, pp. 320-320., https://doi.org/10.1302/0301-620X.86BSUPP_III.0860320a

Rami, H., Smith, A., Shepperd, J., Apthorp, H., & Butler-Manuel, A. (2004). O2481 HYDROXYAPATITE TOTAL HIP REPLACEMENT: 4–5 YEAR REVIEW OF A PROSPECTIVE RANDOMISED TRIAL COMPARING PARTIAL AND FULLY COATED STEMS. Orthopaedic Proceedings, 86-B(SUPP_III), 320-320. https://doi.org/10.1302/0301-620X.86BSUPP_III.0860320a

Rami, H., Smith, A., Shepperd, J., Apthorp, H. and Butler-Manuel, A. (2004) “O2481 HYDROXYAPATITE TOTAL HIP REPLACEMENT: 4–5 YEAR REVIEW OF A PROSPECTIVE RANDOMISED TRIAL COMPARING PARTIAL AND FULLY COATED STEMS.” Orthopaedic Proceedings, 86-B(SUPP_III), pp. 320-320. Available at: https://doi.org/10.1302/0301-620X.86BSUPP_III.0860320a

Rami, Hussein, A. Smith, J. Shepperd, H. Apthorp, and A. Butler-Manuel. “O2481 HYDROXYAPATITE TOTAL HIP REPLACEMENT: 4–5 YEAR REVIEW OF A PROSPECTIVE RANDOMISED TRIAL COMPARING PARTIAL AND FULLY COATED STEMS.” Orthopaedic Proceedings 86-B, no. SUPP_III (2004): 320-320. https://doi.org/10.1302/0301-620X.86BSUPP_III.0860320a

Rami H, Smith A, Shepperd J, Apthorp H, Butler-Manuel A. O2481 HYDROXYAPATITE TOTAL HIP REPLACEMENT: 4–5 YEAR REVIEW OF A PROSPECTIVE RANDOMISED TRIAL COMPARING PARTIAL AND FULLY COATED STEMS. Orthop Procs. 2004 Mar 1;86-B(SUPP_III):320-320. https://doi.org/10.1302/0301-620X.86BSUPP_III.0860320a

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Abstract

Aims: To determine the optimum hydroxyapatite-coating pattern of the femoral component in cement-less hip arthroplasty. Methods: Between January 1996 and May 1997, the þrst 65 patients (73 hips) of a single center prospective trial were randomised to receive a proximally coated Osteonics or a fully coated JRI Furlong stem. 30 Osteonics and 43 JRI stems were implanted. Clinical assessment was carried out using the modiþed Merle DñAubigne and Postel (MDP) system and the visual analogue scale (VAS). Radiological evaluation included measurement of subsidence, bone resorbtion, pedestal formation and implant-bone interface assessment. All live patients were reviewed. The average follow up was 50.3 months in the JRI group and 51.8 months in the Osteonics group. Results: There was one cup revision in both groups for aseptic loosening and one excision arthroplasty in the JRI group for sepsis. Clinical evaluation revealed an MDP of 16.3 (8–18) and a VAS of 0.55 (0–7) for the JRI group. The MDP for the Osteonics group was 16.31 (8–18) and the VAS 0.62 (0–4). Radiological evaluation revealed resorbtion in zone 7A in 16 of the JRI hips and 5 of the Osteonics. There was a reactive line around the distal part of the Osteonics stem in 17 patients, which was not correlated with symptoms. Conclusion: Both hips performed well. There was no difference in revision rate for loosening (p> 0.84). Clinical evaluation showed no signiþcant difference in outcome (p> 0.83). Radiology revealed different patterns, which did not represent a clinical importance at this stage.

Theses abstracts were prepared by Professor Dr. Frantz Langlais. Correspondence should be addressed to him at EFORT Central Office, Freihofstrasse 22, CH-8700 Küsnacht, Switzerland.