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J Arthroplasty. 1998 Jun;13(4):409-13.

Results of 1,000 Performance knees: cementless versus cemented fixation.

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  • 1Valley Baptist Medical Center, Harlingen, Texas 78550, USA.


A total of 893 patients with 1,000 Performance total knee prostheses were retrospectively studied. The mean follow-up was 5.2 years. In 584 cases, the femoral and tibial components were implanted using cementless techniques, and in 416 knees the femoral and tibial components were cemented. All patients received a cemented all polyethylene patellar replacement. Tibial bone density determined fixation type. The average age of patients with cementless fixation was 64.3 years versus 76.2 years for patients with cemented implants. The average subjective and functional Knee Society scores were 91.2 and 90.1 for patients with cementless knees and 89.6 and 83.5 for those with cemented replacements. A surprising absence of osteolysis around screw fixation was noted, and at 5 years, there was 99% implant survival.

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