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Table 2 Overall changes in WOMAC and SF-36 scores of the study participants from before surgery to 6 months after total knee arthroplasty (n = 138)

From: Determinants of pain, functional limitations and health-related quality of life six months after total knee arthroplasty: results from a prospective cohort study

  Mean score before TKA(SD) Mean score 6 months after TKA (SD) Change in score (SD) 95% CI pvalue
WOMAC      
 Pain 44.2 (17.1) 77.3 (17.2) 33.1 (21.8) 29.5 to 36.8 <0.001
 Function 42.1 (15.5) 71.9 (18.1) 29.8 (20.5) 26.3 to 33.2 <0.001
SF-36      
 Physical functioning 18.5. (15.3) 40.9 (21.7) 22.4 (22.6) 18.6 to 26.2 < 0.001
 Role physical 36.5 (21.7) 56.6 (25.6) 20.1 (28.9) 15.3 to 25.0 < 0.001
 Bodily pain 27.6 (10.7) 52.1 (11.2) 24.5 (19.1) 21.3 to 27.7 < 0.001
  1. TKA: Total knee arthroplasty.
  2. SD: standard deviation.
  3. CI: confidence interval.
  4. Scores presented as %. Higher scores always sign a better condition.
  5. Positive changes in score sign an improvement of the condition.