Contemporary Unicompartmental Knee Arthroplasty

Abstract Contemporary unicompartmental knee arthroplasty has shown resurgence in use partly because of studies reporting excellent long-term survivorship. Both fixed-bearing as well as mobile-bearing designs have shown comparable results. Fixed-bearing designs, in particular, implants with metal-bac...

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Bibliographic Details
Published inThe Journal of arthroplasty Vol. 23; no. 7; pp. 24 - 27.e2
Main Authors Bonutti, Peter M., MD, Dethmers, Daniel A., MD
Format Journal Article
LanguageEnglish
Published Elsevier Inc 01.10.2008
Subjects
fixed bearing
long-term results
mobile bearing
Orthopedics
unicompartmental knee
fixed bearing
long-term results
mobile bearing
unicompartmental knee
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Summary:Abstract Contemporary unicompartmental knee arthroplasty has shown resurgence in use partly because of studies reporting excellent long-term survivorship. Both fixed-bearing as well as mobile-bearing designs have shown comparable results. Fixed-bearing designs, in particular, implants with metal-backed tibial components have shown more consistent long-term survival, whereas fixed bearings with an all-polyethylene tibial component have had mixed results. Similar to the all-polyethylene tibial component designs, mobile-bearing designs have demonstrated mixed results. One concern with mobile bearings is the high rate of complete tibial radiolucent lines. The keys to long-term survival of both fixed and mobile-bearing designs in unicompartmental knee arthroplasty are patient selection, surgical technique, and surgical experience.
ISSN:0883-5403
1532-8406
DOI:10.1016/j.arth.2008.06.025