Long-term survival of semi-constrained total knee arthroplasty for revision surgery.

Abstract

Semi-constrained implants provide stability in the setting of soft-tissue deficiency in revision total knee arthroplasty (TKA). This study evaluated our institution's long-term survival results with a semi-constrained implant used in the revision TKA setting. 234 semi-constrained revision total knee arthroplasties were performed in 209 patients. The average follow-up was 9 years. Forty repeat revisions were performed. 5-year survival was 91% and 10-year survival was 81%. Male gender significantly increased the risk of revision. At 10 years the average range of motion, pain level, and Knee Society score improved significantly (P < 0.001). Ninety percent of patients reported an improvement in their knee. The semi-constrained implant used in revision knee arthroplasty has acceptable implant survival and functional outcomes in the long-term follow-up period.

• Authors: Benjamin K Wilke, Eric R Wagner, Robert T Trousdale
• Journal: The Journal of arthroplasty (J Arthroplasty) Vol. 29 Issue 5 Pg. 1005-8 (May 2014) ISSN: 1532-8406 [Electronic] United States
• PMID: 24393376 (Publication Type: Journal Article)
• Copyright: Copyright © 2014 Elsevier Inc. All rights reserved.

Topics

• Adult
• Aged
• Aged, 80 and over
• Arthroplasty, Replacement, Knee (methods)
• Female
• Humans
• Knee Joint (physiopathology, surgery)
• Knee Prosthesis
• Male
• Middle Aged
• Prosthesis Design
• Range of Motion, Articular
• Reoperation