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lüll Role of abrasion of the femoral component in revision knee arthroplasty Siddique MS; Rao MC; Deehan DJ; Pinder IMJ Bone Joint Surg Br 2003[Apr]; 85 (3): 393-8We 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.|*Knee Prosthesis[MESH]|*Polyethylenes[MESH]|Adult[MESH]|Aged[MESH]|Aged, 80 and over[MESH]|Arthralgia/etiology[MESH]|Arthritis, Juvenile/surgery[MESH]|Arthritis, Rheumatoid/*surgery[MESH]|Arthroplasty, Replacement, Knee/*methods[MESH]|Female[MESH]|Humans[MESH]|Male[MESH]|Middle Aged[MESH]|Osteoarthritis, Knee/*surgery[MESH]|Pain Measurement[MESH]|Prosthesis Failure[MESH]|Reoperation[MESH] |