Improving Estimates of Annual Survival Rates for Medial Unicompartmental Knee Arthroplasty, a Meta-Analysis.
Autor: | Heaps BM; Department of Orthopaedic Surgery, Hospital for Special Surgery, New York, NY., Blevins JL; Department of Orthopaedic Surgery, Hospital for Special Surgery, New York, NY., Chiu YF; Department of Orthopaedic Surgery, Hospital for Special Surgery, New York, NY., Konopka JF; Department of Orthopaedic Surgery, Wentworth-Douglass Hospital, Dover, NH., Patel SP; Department of Orthopaedic Surgery, Southern California Permanente Medical Group, Irvine, CA., McLawhorn AS; Department of Orthopaedic Surgery, Hospital for Special Surgery, New York, NY. |
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Jazyk: | angličtina |
Zdroj: | The Journal of arthroplasty [J Arthroplasty] 2019 Jul; Vol. 34 (7), pp. 1538-1545. Date of Electronic Publication: 2019 Mar 06. |
DOI: | 10.1016/j.arth.2019.02.061 |
Abstrakt: | Background: Medial unicompartmental knee arthroplasty (mUKA) is an increasingly popular treatment option for medial compartment knee osteoarthritis. Published mUKA survival rates have varied. The purpose of this meta-analysis was to provide pooled estimates of mUKA survival 5 and 10 years postoperatively. Methods: We included studies in English within the last 15 years with a clear description of mUKA failure. Random-effects models were used to pool complementary log-log transformed implant survival estimates at 5 and 10 years postoperatively. Between-study variance was estimated using the restricted maximum likelihood method. Between-study heterogeneity was tested using the χ2 test and quantified using the I 2 statistic. I 2 values <25%, 25%-75%, and >75% were considered low, moderate, and high, respectively. Multivariable meta-regression was used to assess the potential association of mean patient age and study start year with survival estimates at 5 and 10 years. All analyses were performed using the metafor and meta packages implemented in R software version 3.3.4 (R Foundation for Statistical Computing, Vienna, Austria). Results: Twenty-six studies met inclusion criteria, representing 42,791 knees. Study-level and pooled 5- and 10-year mUKA survival estimates were 95.3% (95% confidence interval, 93.6-96.6) and 91.3% (88.9-93.3), respectively. Between-study heterogeneity was high (>88%) for all years. Mean patient age and study start year explained only 12.3% and 30.7% of between-study heterogeneity at 5 and 10 years, respectively. Conclusion: Five- and 10-year pooled mUKA survival estimates were 95.3% and 91.3%, respectively. These data establish better estimates of mUKA survivorship and can help when counseling patients considering mUKA. (Copyright © 2019 Elsevier Inc. All rights reserved.) |
Databáze: | MEDLINE |
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