Functional outcome and patient satisfaction in total knee patients over the age of 75

J Arthroplasty. 1996 Oct;11(7):831-40. doi: 10.1016/s0883-5403(96)80183-5.


Seventy-four patients, age 75 or older, who had undergone 98 primary total knee arthroplasties were evaluated in a retrospective cohort study, with validated questionnaires that assessed self-reported pain, physical function, mental health, and satisfaction. Average follow-up period was 34 months (range, 12-67 months). Overall, 90.8% reported improvement, 88.8% were satisfied with the results of surgery, and 91.8% felt they had made the right decision. Dissatisfaction with the results correlated with poorer mental health scores, decreased physical function, and increased bodily pain scores (P < .05). Satisfaction was correlated with better pain scores on the Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC) and SF-36 (P < .05) but not with Hospital for Special Surgery scores (P = .328). Poor surgical results leading to revision surgery (5%) were associated with preoperative deformity greater than 20 degrees. Based on this patient-assessed outcome analysis, total knee arthroplasty is a worthwhile and beneficial procedure in the elderly.

Publication types

  • Research Support, Non-U.S. Gov't
  • Research Support, U.S. Gov't, P.H.S.

MeSH terms

  • Age Factors
  • Aged
  • Cohort Studies
  • Follow-Up Studies
  • Humans
  • Knee Joint / physiology*
  • Knee Prosthesis*
  • Outcome Assessment, Health Care
  • Patient Satisfaction*
  • Postoperative Complications
  • Reoperation
  • Retrospective Studies
  • Surveys and Questionnaires
  • Treatment Outcome