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A locked knee in extension: a complication of a degenerate knee with patella alta.

Authors
  • McWilliams, T G
  • Binns, M S
Type
Published Article
Journal
The Journal of bone and joint surgery. British volume
Publication Date
Aug 01, 2000
Volume
82
Issue
6
Pages
890–890
Identifiers
PMID: 10990319
Source
Medline
License
Unknown

Abstract

We present a case of superior dislocation of the patella trapped by interlocked osteophytes. Unlike previous reports, in which the mechanism resulted from a blow to the inferior pole, it is postulated that increased load on the extensor mechanism, combined with patella alta and patellofemoral osteophytes, caused locking of the knee in extension.

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