- •Composite scores of multiple measures to fully reflect pain outcomes in addition to pain plus other symptoms outcomes were developed for patients undergoing knee arthroplasty.
- •Complete resolution of pain in the index knee occurs in about a third of the time after knee replacement surgery recovery.
- •Complete pain plus other symptoms resolution is much less frequent, ∼14% of the time.
- •Complete functional restoration occurred in ∼29% of subjects.
- •These findings can more fully inform shared decision-making discussions with patients.
Main Outcome Measures
List of abbreviations:CI (Confidence interval), KA (Knee arthroplasty), KOOS (Knee injury and Osteoarthritis Outcome Score), OAI (Osteoarthritis Initiative), WOMAC (Western Ontario and McMaster Universities Osteoarthritis Index)
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Supported by the Osteoarthritis Initiative (OAI), a public a public-private partnership composed of 5 contracts (contract nos. N01-AR-2-2258, N01-AR-2-2259, N01-AR-2-2260, N01-AR-2-2261, and N01-AR-2-2262) funded by the National Institutes of Health, a branch of the Department of Health and Human Services, and conducted by the OAI Study Investigators. Private funding partners include Merck Research Laboratories, Novartis Pharmaceuticals Corporation, GlaxoSmithKline, and Pfizer. Private sector funding for the OAI is managed by the Foundation for the National Institutes of Health. This article was prepared using an OAI public use data set and does not necessarily reflect the opinions or views of the OAI Study Investigators, the National Institutes of Health, or the private funding partners.