Table 2.
Clinical and functional results of THA according to the Harris hip rating system [14]
| Followup | Pain | Function | Deformity | Range of motion (degrees) | Total hip score (points) | WOMAC score (points) | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Preoperative | Pain | Gait | Support | Distance walked | Stairs | Socks/tie shoes | Sitting | Enter public transportation | Total | Absence of deformity | Permanent flexion | Flexion | Abduction | Adduction | External rotation | Internal rotation | ||
| Average | 19.7 | 0.7 | 10.4 | 7.5 | 1.9 | 2.7 | 4.9 | 0.8 | 28.9 | 2.7 | −13.5 | 94.8 | 21.0 | 32.2 | 27.4 | 21.6 | 55.4 | 65 |
| Minimum | 10 | 0 | 0 | 2 | 1 | 0 | 3 | 0 | 16 | 0 | −47 | 30 | −35 | 0 | 0 | −25 | 31 | 58 |
| Maximum | 24 | 5 | 11 | 11 | 4 | 4 | 5 | 1 | 41 | 4 | 5 | 135 | 60 | 60 | 60 | 100 | 72 | 70 |
| SD | 12.3 | 1.8 | 2.2 | 2.9 | 0.8 | 1.1 | 0.3 | 0.4 | 5.2 | 1.9 | 15.9 | 31.7 | 23.0 | 18.0 | 17.6 | 23.9 | 16.2 | 5.7 |
| Final followup | ||||||||||||||||||
| Average | 42.4 | 7.3 | 8.7 | 9.7 | 2.9 | 3.2 | 5.0 | 1.0 | 37.7 | 4.0 | 0.0 | 105.3 | 44.9 | 34.4 | 52.5 | 38.2 | 89.1 | 42 |
| Minimum | 10 | 0 | 0 | 2 | 0 | 0 | 5 | 1 | 11 | 4 | 0 | 40 | 20 | 10 | −20 | −20 | 30 | 28 |
| Maximum | 44 | 11 | 11 | 11 | 4 | 4 | 5 | 1 | 47 | 4 | 0 | 135 | 60 | 60 | 60 | 60 | 100 | 59 |
| SD | 6.3 | 3.0 | 4.1 | 2.7 | 1.5 | 1.4 | 0.0 | 0.0 | 11.0 | 0.0 | 0.0 | 21.4 | 10.4 | 11.2 | 16.6 | 22.4 | 14.9 | 12.7 |
| t test | < 0.001 | < 0.001 | 0.04 | 0.002 | 0.001 | 0.080 | 0.320 | 0.010 | 0.0001 | 0.0002 | < 0.001 | 0.113 | < 0.001 | 0.55 | < 0.001 | 0.004 | < 0.001 | 0.023 |
SD = standard deviation.