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The Journal of Arthroplasty, ISSN: 0883-5403, Vol: 24, Issue: 8, Page: 1292.e5-1292.e9
Knee
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Early Nontraumatic Fracture of the Polyethylene Tibial Post in a NexGen LPS-Flex Posterior Stabilized Knee Prosthesis
Lee, Chi-Sheng; Chen, Wei-Ming; Kou, Hung-Chan; Lo, Wai-Hee; Chen, Chien-LungKnee
Fracture of a polyethylene tibial post in a knee prosthesis after a total knee arthroplasty (TKA) is an uncommon but severe complication of polyethylene tibial post wear. A fractured tibial post results in an unstable and malfunctioning knee. Revision knee surgery is necessary to restore function of the affected knee. We report a case of a nontraumatic fracture of a tibial polyethylene post that occurred in a 63-year-old man with left-sided hemiparesis 3 years after he had undergone left TKA with a NexGen LPS-Flex total knee prosthesis. To our knowledge, this is the first report of a nontraumatic fracture to the tibial post with anterolateral to posterior breakage after a NexGen LPS-Flex TKA.
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