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Archives of Orthopaedic and Trauma Surgery

Published in:

01-07-2010 | Orthopaedic Outcome Assessment

Bone remodeling in proximal HA-coated versus uncoated cementless SL-Plus^® femoral components: a 5-year follow-up study

Authors: W. Steens, A. G. Schneeberger, R. Skripitz, P. Fennema, C. Goetze

Published in: Archives of Orthopaedic and Trauma Surgery | Issue 7/2010

Abstract

Background and purpose

Bone resorption at the femoral stem due to stress shielding has been particularly observed secondary to cementless hip replacement. This prospective study of 126 total-hip replacements was performed to examine clinical outcomes and changes in peri-prosthetic bone density after implantation of a double-tapered cementless femoral component manufactured with versus without hydroxyapatite (HA) coating.

Methods

Sixty-seven femoral components with and 59 femoral components without proximal HA coating were implanted and examined after a mean follow-up of 5.8 (SD 1.1, 2.8–7.8) years. The Harris hip score (HHS) and plain radiographs were used for clinical and radiological follow-up evaluations. Possible changes in peri-prosthetic bone mineral density (BMD) were measured by dual-energy X-ray absorptiometry (DEXA).

Results

Clinical outcome, measured by HHS, was similar in both groups. On plain radiographs, significantly less radiolucent lines were observed for the coated implants. DEXA revealed a significant increase in BMD at the proximal zones, along the medial side, and at the stem tips in the coated compared with the non-coated implants.

Interpretation

Hydroxyapatite-coated implants yield favorable radiographic characteristics, but no greater clinical benefit after 5 years’ implantation.

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Title: Bone remodeling in proximal HA-coated versus uncoated cementless SL-Plus® femoral components: a 5-year follow-up study
Authors: W. Steens
A. G. Schneeberger
R. Skripitz
P. Fennema
C. Goetze
Publication date: 01-07-2010
Publisher: Springer-Verlag
Published in: Archives of Orthopaedic and Trauma Surgery / Issue 7/2010
Print ISSN: 0936-8051
Electronic ISSN: 1434-3916
DOI: https://doi.org/10.1007/s00402-009-1040-4

Keynote webinar | Spotlight on medication adherence

Springer Medicine

Bone remodeling in proximal HA-coated versus uncoated cementless SL-Plus^® femoral components: a 5-year follow-up study

Abstract

Background and purpose

Methods

Results

Interpretation

Keynote webinar | Spotlight on medication adherence

Springer Medicine

Abstract

Background and purpose

Methods

Results

Interpretation

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