- 期刊
Fracture of the Polyethylene Tibial Spine in NexGen Posterior Stabilized Flex Knee Prosthesis: A Case Report
NexGen後穩定式高彎曲度人工膝關節之聚乙稀墊片脛骨棘斷裂：一病例報告
並列摘要
We report a case of fracture of the polyethylene tibial spine of a NexGen posterior stabilized UPS-Flex total knee (Zimmer, Warsaw, IN, U.S.A.) 3 years after total knee arthroplasty. Wear of the polyethylene was noted over the medial and lateral surfaces with burnishing and around the broken site of the tibial spine. Anterior tibial spine impingement in the posterior stabilized total knee arthroplasty is the possible mechanism of failure. Since the patient was obese and had medial instability, revision with constrained total knee arthroplasthy was done. After surgery the patient obtained an uneventful recovery with complete relief of previous symptoms. To our nowledge, this is the first report of polyethylene tibial spine fracture in NexGen UPS high flexion total knee prosthesis.
延伸閱讀
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