Abstract

follow-up) performed with a mobile-bearing TKA with cemented components with the same indications, implant, technique, and length of follow-up. Six of 73 cementless mobile-bearing TKA’s (8%) underwent tibial component revision for symptomatic subsidence and failure of ingrowth, compared to 0/66 revisions in the cemented group (p .05). Patients with cementless mobile bearing TKA also had a significantly lower KSCS (161 vs. 184, p .05), a significantly higher incidence of pain rated more than mild (23% vs. 7%, p .01) and a trend toward less arc of motion (1060 vs. 1150, p 0.2). The results do not support the hypothesis that mobile-bearing TKA imparts the advantage of reliable tibial bone ingrowth.

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