Acetabular Bone Conservation

Daniel, Joseph; Ziaee, Hena; McMinn, Derek J. W.

doi:10.1007/978-1-84800-088-9_11

Cited by 1 publication

(1 citation statement)

References 3 publications

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“…The coverage angle, which represents the coverage of the femoral head by the acetabular component, is also less in the BHR relative to conventional hip arthroplasties. The relative coverage of the femoral head decreases as the size of the components decrease; this results in a reduction in peripheral cover for the femoral head and is less forgiving of minor surgical errors in component positioning and can lead to edge wear and device failure [12]. Furthermore, smaller component sizes have also been directly associated with higher wear rates [30].…”

Section: Discussionmentioning

confidence: 99%

What is the Midterm Survivorship and Function After Hip Resurfacing?

Rahman¹,

Muirhead-Allwood²,

Alkinj³

2010

Clinical Orthopaedics &Amp; Related Research

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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

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Section: Discussionmentioning

confidence: 99%