Table 2.
Comparison of mean pre- and post-operative parameters of patients
| Variable | Pre-injection | Last follow-up | P value |
|---|---|---|---|
| VAS | 7.1 ± 1.1 | 0.8 ± 0.9 | < 0.001 |
| DFK | 17.9 ± 4.8 | 9.7 ± 2.8 | < 0.001 |
| Range of motion (degree) | < 0.001 | ||
| Flexion | 97.1°± 5.4° | 117.2°± 7.5° | < 0.001 |
| Extension | 15.2°± 12.5 | 25.3°± 2.9° | < 0.001 |
| Internal rotation | 11.1°± 1.8 | 26.4°± 4.3° | < 0.001 |
| External rotation | 20.7°± 1.6° | 42.9°± 4.6° | < 0.001 |
| Abduction | 32.8°± 0.9° | 40.3°± 0.2 | < 0.001 |
| Adduction | 19.3°± 0.5° | 20.3°± 0.3° | 0.110 |
| HOOS | |||
| Symptom | 77.5 ± 8.6 | 88.8 ± 5.7 | < 0.001 |
| Pain | 78.3 ± 6.4 | 93.5 ± 5.3 | < 0.001 |
| ADL | 85.3 ± 6.1 | 96.2 ± 4.7 | < 0.001 |
| Sports | 80.1 ± 10.2 | 93.4 ± 9.7 | < 0.001 |
| QoL | 65.3 ± 13.4 | 86.8 ± 5.2 | < 0.001 |
*Data are provided as mean ± SD
ADL, activities of daily living; DFK, distance from floor to knee on sitting in cross-legged position; HOOS, hip disability and osteoarthritis outcome score; QoL, quality of life; VAS, visual analogue scale