Revision of the unstable total knee arthroplasty: outcome predictors.
Publication/Presentation Date
12-1-2011
Abstract
Revision arthroplasty is often required for confirmed cases of symptomatic tibiofemoral instability after total knee arthroplasty (TKA). We evaluated the results of revision for TKA instability in a consecutive series of 67 patients (68 knees) between 2000 and 2006. Outcome measures were surgeon-based assessment of knee stability, Knee Society Score, and Short Form Health Survey 36. At an average of 39 months of follow-up, the mean Knee Society Score and Short Form Health Survey 36 physical and mental scores were 76, 53, and 67 points, respectively. Knee instability persisted in 14 patients (22%). Data at the 95% confidence level revealed that revising both the femoral and tibial components, the use of femoral augments, and smaller joint line elevation as measured on radiographs correlated significantly with achieving a stable knee. In revision surgery for TKA instability, revision of both components and the use of femoral augments seem to offer the most predictable outcome.
Volume
26
Issue
8
First Page
1139
Last Page
1144
ISSN
1532-8406
Published In/Presented At
Azzam, K., Parvizi, J., Kaufman, D., Purtill, J. J., Sharkey, P. F., & Austin, M. S. (2011). Revision of the unstable total knee arthroplasty: outcome predictors. The Journal of arthroplasty, 26(8), 1139–1144. https://doi.org/10.1016/j.arth.2011.02.028
Disciplines
Business Administration, Management, and Operations | Health and Medical Administration | Management Sciences and Quantitative Methods
PubMedID
21507608
Department(s)
Administration and Leadership
Document Type
Article