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Erschienen in: Clinical Orthopaedics and Related Research® 12/2010

01.12.2010 | Symposium: Papers Presented at the 2009 Closed Meeting of the International Hip Society

What is the Midterm Survivorship and Function After Hip Resurfacing?

verfasst von: Luthfur Rahman, MRCS, Sarah K. Muirhead-Allwood, FRCS, Muhannad Alkinj, MBBS

Erschienen in: Clinical Orthopaedics and Related Research® | Ausgabe 12/2010

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Abstract

Background

Hip resurfacing arthroplasty is a common procedure that improves functional scores and has a reported survivorship between 95% and 98% at 5 years. However, most studies are reported from the pioneering rather than independent centers or have relatively small patient numbers or less than five years followup. Various factors have been implicated in early failure.

Questions/purposes

Our purposes were to determine: (1) the midterm survival of the BHR; (2) the function in patients treated with hip resurfacing; and (3) whether age, gender, BMI, or size of components related to failure.

Methods

We reviewed the first 302 patients (329 hips) on whom we performed resurfacing arthroplasty. We assessed the survivorship, change in functional hip scores (HHS, OHS, WOMAC, UCLA), and analyzed potential risk factors (age, gender, BMI, component size) for failure. The mean age at the time of surgery was 56.0 years (range, 28.2–75.5 years). The minimum followup was 5 years (mean, 6.6 years; range, 5–9.2 years).

Results

Kaplan-Meier analysis showed survival of 96.5% (95% CI, 94.7–98.4) at 9 years taking revision for any cause as the endpoint. All functional hip scores (HHS, OHS, WOMAC, UCLA) improved. Survivorship was higher in men compared with women. The component sizes and body mass index were smaller in the revised group compared with the nonrevised group.

Conclusions

Medium-term survivorship and functional scores of hip resurfacing are comparable to those from the pioneering center. Hip resurfacing remains a good alternative to THA, particularly in the younger male population with relatively large femoral head sizes.

Level of Evidence

Level IV, therapeutic study. See the Guidelines for Authors for a complete description of levels of evidence.
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Metadaten
Titel
What is the Midterm Survivorship and Function After Hip Resurfacing?
verfasst von
Luthfur Rahman, MRCS
Sarah K. Muirhead-Allwood, FRCS
Muhannad Alkinj, MBBS
Publikationsdatum
01.12.2010
Verlag
Springer-Verlag
Erschienen in
Clinical Orthopaedics and Related Research® / Ausgabe 12/2010
Print ISSN: 0009-921X
Elektronische ISSN: 1528-1132
DOI
https://doi.org/10.1007/s11999-010-1438-x

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