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Lookup NU author(s): Dr Shahid Siddique,
Professor David Deehan,
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We carried out 60 revision procedures for failed porous coated anatomic total knee replacements in 54 patients, which were divided into two groups. The 14 knees in group I had a well-fixed femoral component at surgery which was retained, and in the 46 knees in group II both tibial and femoral components were loose and were revised using a variety of implants. Our review comprised clinical and radiological assessment. A total of 13 knees required a second revision. Six (42%) in group I failed very early (mean 2.1 years) when compared with seven (15%) in group II (mean 6.8 years). Failure was due to wear of the polyethylene insert by the abraded, retained femoral component (crude odds ratio 4.07; 95% CI 1.07 to 15.5). We recommend a complete change of primary bearing surfaces at the time of revision of an uncemented total knee replacement in order to prevent early wear of polyethylene.
Author(s): Siddique MS, Rao MC, Deehan DJ, Pinder IM
Publication type: Article
Publication status: Published
Journal: Journal of Bone and Joint Surgery: British Volume
ISSN (print): 0301-620X
Publisher: British Editorial Society of Bone and Joint Surgery
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