Article

OBJECTIVES: To determine the prevalence of a 1- to 2-year postsurgical pain-free
state and pain plus symptom-free state as well as functional restoration after
knee arthroplasty (KA) and to identify predictors of these outcomes. DESIGN:
Cohort study. SETTING: Communities of 4 sites. PARTICIPANTS: Consecutive
participants (N=383) who underwent KA on at least 1 knee during the first 8 years
of the study (mean age, 67.95+/-8.5y; 61.4% women; n=235). MAIN OUTCOME MEASURES: A composite pain score included the Western
Ontario and McMaster Universities Osteoarthritis Index (WOMAC) Pain scale and 2
generic pain rating scales. Composite pain plus other symptoms scores included 3
pain scales, a stiffness scale, and, in addition, the Knee injury and
Osteoarthritis Outcome Score Symptoms scale. The WOMAC Function scale was used to
quantify functional status. Prevalence estimates and predictors of a pain-free
state, symptom-free state, and a fully functioning state were determined.
RESULTS: A sample of 383 participants with KA was studied, and of these, 34.1%
(95% confidence interval [CI], 29.3%-39.2%; n=131) had a composite score of 0 for
pain. A total of 14.1% (95% CI, 10.8%-18.1%; n=54) had a composite score of 0,
indicating a symptom-free state, whereas 29.0% (95% CI, 24.4%-34.0%; n=111)
achieved a score of 0 on the WOMAC Function scale. CONCLUSIONS: The prevalence of
complete pain relief was 34%, the prevalence of complete pain and symptom relief
was 14%, and the prevalence of complete functional restoration was 29% after KA.
Participants who are older and with lower (better) WOMAC Pain scores were more
likely to be pain-free after surgery. These data collected from a community-based
sample have the potential to inform clinicians screening patients for KA
consultation in a shared decision-making discussion to better align patient
expectations with the most likely outcome.
CI - Copyright (c) 2018 American Congress of Rehabilitation Medicine. Published by
Elsevier Inc. All rights reserved.

Langue : ANGLAIS