Fracture of the polyethylene tibial post in a NexGen posterior-stabilized knee prosthesis.

Yen Shuo Chiu, Wei Ming Chen, Ching Kuei Huang, Chao Ching Chiang, Tain Hsiung Chen

Research output: Contribution to journalArticlepeer-review

79 Citations (Scopus)

Abstract

We reported a case of fracture of a polyethylene tibial post in a 44-year-old woman after 3 years of NexGen posterior-stabilized total knee arthroplasty (Zimmer, Warsaw, IN). Burnishing and delamination of the polyethylene was found around the breakage site of the post, especially over the anterior aspect of the post base. It indicated that the possible failure mechanism was the repeated anterior impingement between the metal femoral cam and polyethylene tibial post. After replacement of the broken insert, the patient obtained complete relief of previous symptoms. To our knowledge, this is the first report of post breakage of a NexGen posterior-stabilized knee prosthesis.

Original languageEnglish
Pages (from-to)1045-1049
Number of pages5
JournalThe Journal of arthroplasty
Volume19
Issue number8
DOIs
Publication statusPublished - Dec 2004
Externally publishedYes

ASJC Scopus subject areas

  • Orthopedics and Sports Medicine

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