Table 4 Preoperative and postoperative range of motion and patient-reported outcomes
From: Staged replacement of both hips and both knees in patients with rheumatoid arthritis
Variable | Before surgery | Last follow-up | P value |
|---|---|---|---|
Hip | |||
Flexion, ° | 66.5 (0–110) | 114.5 (80–135) | <0.001 |
Flexion contracture, ° | 7.8 (0–60) | 0 (0–0) | <0.001 |
Abduction, ° | 10.4 (0–40) | 40.2 (25–50) | <0.001 |
WOMAC score | |||
Pain | 10.8 (8–13) | 0.2 (0–3) | <0.001 |
Function | 50.2 (30–68) | 16.8 (6–52) | <0.001 |
Total | 63.3 (39–85) | 16.9 (6–52) | <0.001 |
HHS score | |||
Pain | 11.3 (0–20) | 43.8 (40–44) | <0.001 |
Function | 6.2 (0–16) | 32.6 (7–44) | <0.001 |
Total | 23.2 (4–44) | 84.5 (58–96) | <0.001 |
Satisfaction score | |||
Overall | 92.5 (50–100) | ||
Pain | 98.8 (75–100) | ||
Function | 86.3 (25–100) | ||
Recreation | 84.6 (25–100) | ||
Knee | |||
Flexion, ° | 83.7 (0–130) | 104.1 (35–130) | <0.001 |
Flexion contracture, ° | 19.6 (0–77) | 0.5 (0–10) | <0.001 |
WOMAC score | |||
Pain | 10.6 (8–14) | 0.3 (0–3) | <0.001 |
Function | 47.7 (32–68) | 17.8 (7–53) | <0.001 |
Total | 60.3 (42–86) | 18.2 (7–55) | <0.001 |
KSS clinical score | |||
Pain | 11.4 (0–20) | 48.7 (40–50) | <0.001 |
Total | 33.6 (8–57) | 94.5 (81–100) | <0.001 |
KSS function score | |||
Total | 5.4 (0–25) | 74.5 (0–100) | <0.001 |
Satisfaction score | |||
Overall | 89.6 (50–100) | ||
Pain | 96.3 (75–100) | ||
Function | 85 (25–100) | ||
Recreation | 82.5 (25–100) | ||
Combined flexion, ° | 150.2 (0–220) | 218.6 (125–260) | <0.001 |