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

John G. Anderson, Richard L. Wixson*, Davis Tsai, S. David Stulberg, Rowland W. Chang

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

218 Scopus citations


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°. Based on this patient-assessed outcome analysis, total knee arthroplasty is a worthwhile and beneficial procedure in the elderly.

Original languageEnglish (US)
Pages (from-to)831-840
Number of pages10
JournalJournal of Arthroplasty
Issue number7
StatePublished - 1996


  • Elderly
  • Functional outcome
  • Questionnaire
  • Total knee arthroplasty

ASJC Scopus subject areas

  • Orthopedics and Sports Medicine

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