title: One-third of total knee replacements classified "inappropriate". But interpret findings cautiously, authors warn.
mesh_terms: D019645:Arthroplasty, Replacement, Knee / Q000706:statistics & numerical data*; D006801:Humans; D020370:Osteoarthritis, Knee / Q000601:surgery*; D017063:Outcome Assessment, Health Care; D019564:Unnecessary Procedures / Q000706:statistics & numerical data*