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Table 2 Prospectively tabulated WOMAC hip and knee total scores

From: Patient-reported quality of life after primary major joint arthroplasty: a prospective comparison of hip and knee arthroplasty

WOMAC total score

N

THA

N

TKA

P

Preoperatively

174

61.3 ± 15.8

204

54.3 ± 14.4

<0.0001

6-wks post-op

174

47.1 ± 12.0

01

46.9 ± 15.9

0.9

3-m post-op

173

30.9 ± 10.2

198

26.7 ± 12.6

0.001

6 m post-op

172

18.1 ± 12.2

193

14.5 ± 12.1

0.007

12 m post-op

169

14.7 ± 9.7

184

9.6 ± 10.0

<0.0001

WOMAC total change score

     

 Pre-op – 12 monthsa

 

46.6(43.4–49.8)

 

44.7(41.3–48.0)

 

 ES Pre-op – 12 months

 

2.9

 

3.1

 
  1. WOMAC total score: 0–96, higher scores indicate greater difficulty
  2. ES = effect size
  3. aValues are mean (95 % confidence interval)