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Publications > Arthoplastie > Factors affecting acetabular bone loss during primary hip arthroplasty – A quantitative analysis using computer simulation

Factors affecting acetabular bone loss during primary hip arthroplasty – A quantitative analysis using computer simulation

Background. Although, various factors may affect the degree of acetabular bone loss during primary hip arthroplasty, they have not been quantified previously. Methods. We assessed the influence of using various reamer diameters, designs and reaming depth on the amount of bone removed during acetabular preparation by simulated reaming in a three-dimensional pelvic model, using computer software. Findings. The least amount of bone loss (6185 mm3) providing optimal bone contact with the acetabular articular surface occurred with a 165° reamer design. Increase in reamer diameter, reaming depth and subtending angle of the reamer resulted in disproportionately large increase in the amount of bone resected compared to the relatively small increase in the reamer-bone contact area. Interpretation. Surgeons must be aware of the relative influence of the reaming technique and the implant design on the amount of acetabular bone resection to optimize acetabular bone preservation during primary hip arthroplasty.

© 2008 Elsevier Ltd. All rights reserved. Keywords: Hip arthroplasty; Bone resection; Bone loss; Acetabular preparation; Acetabular reaming; Three-dimensional computer model

Keywords: Hip arthroplasty; Bone resection; Bone loss; Acetabular preparation; Acetabular reaming; Three-dimensional computer model

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