RESUMOAs complicações das artroplastias totais do joelho devidas ao material implantado são raras, exceto o desgaste do polietileno. O relato de migração de parafusos dentro da articulação do joelho é muito raro. Os autores relatam a migração intra-articular de um parafuso de segurança do polietileno numa artroplastia total do joelho com sacrifício do ligamento cruzado posterior (ATJ tipo Performance; Biomet, Warsaw, IN) que obrigou a nova cirurgia para remoção do parafuso, substituição do componente de polietileno e aplicação de novo parafuso de fixação.
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Complications from total knee arthroplasty caused by the implanted material are rare, with the exception of polyethylene wear. Descriptions of screw migration into the knee joint cavity are very rare. The authors report intra-articular migration of a polyethylene safety screw in a case of total knee arthroplasty, with sacrifice of the posterior cruciate ligament (TKA Performance; Biomet, Warsaw, IN, USA), which necessitated new surgery to remove the screw, replace the polyethylene insert and emplace a new fixation screw.
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