Unicompartmental Knee Arthroplasty. A Multicenter Investigation With Long-Term Follow-Up Evaluation

Clin Orthop Relat Res. 1993 Jan;(286):154-9.


Nonmental-backed, cemented, unicompartmental knee arthroplasty has a survivorship rate in this multicenter investigation at ten years of 91.4% (+/- 2.8). High levels of patient weight were associated with increased need for revision arthroplasty. Overall, men had a lower revision rate (2.4%) compared with women (3.9%). Valgus postoperative alignment was minimally associated with progression of disease as a cause for revision. No difference in revision rates between medial and lateral compartmental arthroplasty was noted. The theoretical clinical benefits of the use of metal-backed tibial components will need to be reevaluated in light of these findings.

Publication types

  • Multicenter Study

MeSH terms

  • Adult
  • Aged
  • Aged, 80 and over
  • Anthropometry
  • Arthroplasty / methods
  • Body Mass Index
  • Female
  • Follow-Up Studies
  • Humans
  • Knee Prosthesis* / statistics & numerical data
  • Male
  • Middle Aged
  • Prosthesis Design
  • Sex Factors
  • Survival Rate