AI Article Synopsis
- The study examined polyethylene socket wear in two groups of hip prostheses: one with a rotating ceramic head and another with a fixed ceramic head.
- The average follow-up period was 12 years, and results showed a significant difference in wear, with the rotating group experiencing a mean annual wear of 0.034 mm, compared to 0.069 mm in the fixed group.
- The findings suggest that using a rotating bearing in hip prostheses can significantly reduce socket wear compared to fixed designs.
Article Abstract
We measured radiographically the polyethylene socket wear in 34 hip prostheses with a 32 mm Al2O3-ceramic head with a rotating bearing and in 37 prostheses with a "fixed" ceramic head. The mean follow-up was 12 years in both groups. The mean annual linear wear of the polyethylene was 0.034 and 0.069 mm, respectively, (Mann-Whitney U-test p < 0.0001) in the "rotation" and the "fixed" group. A rotating bearing between the head and neck in a modular total hip system seems to reduce socket wear as compared to fixed taper junctions.
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| http://dx.doi.org/10.3109/17453679809000924 | DOI Listing |
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