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Low complication and revision rates found with use of Birmingham Hip Resurfacing implant
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According to the authors of this study, use of the Birmingham Hip Resurfacing implant had a low incidence of adverse metal reactions and excellent clinical results at 2 years to 4 years of follow-up, and showed complication and revision rates comparable to those of primary total hip arthroplasty.
Researchers retrospectively reviewed data for 1,271 hips treated with a Birmingham Hip Resurfacing (BHR) system (Smith & Nephew) between June 2006 and September 2008. They recorded demographic features, Harris Hip scores and radiographic findings, and asked all patients about complications, reoperations and implant failures. Researchers contacted patients by telephone if they did not have a 2-year follow-up visit.
Denis Nam
Overall, 90% of patients had 2 years minimum clinical follow-up. Researchers found an improvement in mean Harris Hip scores from 55.8 preoperatively to 97.4 at most recent follow-up. Results showed 1.4% of patients had revision to total hip arthroplasty for fracture, early dislocation, infection, femoral loosening, pseudotumor, or acetabular component malpositioning with pain. Researchers also found nine complications that did not require revision. These complications included two fractures, three nerve injuries, one pseudotumor and three dislocations treated with closed reduction. – by Casey Tingle
Disclosures: Nam holds stock in OrthoAlign Inc. Please see the full study for a list of all other authors’ relevant financial disclosures.
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