The Influence of Femoral Component Design in the Elimination of Patellar Clunk in Posterior-Stabilized Total Knee Arthroplasty
Patellar clunk occurs after posterior-stabilized total knee arthroplasty and is believed to be a design-related complication. This study was undertaken to define the incidence of patellar clunk with an optimized third-generation, posterior-stabilized prosthesis. One hundred ninety three patients wit...
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Published in | The Journal of arthroplasty Vol. 21; no. 2; pp. 167 - 171 |
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Main Authors | , , , , , |
Format | Journal Article |
Language | English |
Published |
United States
Elsevier Inc
01.02.2006
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Subjects | |
Online Access | Get full text |
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Summary: | Patellar clunk occurs after posterior-stabilized total knee arthroplasty and is believed to be a design-related complication. This study was undertaken to define the incidence of patellar clunk with an optimized third-generation, posterior-stabilized prosthesis. One hundred ninety three patients with 238 knees were evaluated at a minimum of 2 years after primary total knee arthroplasty with a cemented, NexGen Legacy Posterior-Stabilized prosthesis (Zimmer, Warsaw, Ind). The mean follow-up was 48 months (range, 24-72 months). No patient manifested symptoms of patellar clunk or underwent surgery for any patello-femoral problem. These results support prior evidence that femoral component design is the primary cause of patellar clunk and that modifications incorporated into this third-generation, posterior-stabilized prosthesis has eliminated the problem. |
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Bibliography: | ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23 |
ISSN: | 0883-5403 1532-8406 |
DOI: | 10.1016/j.arth.2005.05.024 |