Table 2. Changes in hip pain at rest, and during maximal contractions and performance-based function.
| Category | Pre-surgery | Day 2 | Day 8 |
| (n = 30) | (n = 30) | (n = 30) | |
| Resting pain, VAS-mm | 10.0 (2.3–18.3) | 11 (0–22.0) | 1.5 (0–9.0)*‡$ |
| Hip-flexion MVC pain, VAS-mm | 21 (4.8–39.0) | 21 (10.0–38.5) | 14.5 (4.0–22.3) |
| Hip-abduction MVC pain, VAS-mm | 20 (4.8–40.0) | 20.5 (8.8–40.0) | 10.5 (3.0–27.3)*‡$ |
| Hip-adduction MVC pain, VAS-mm | 18.5 (3.0–31.3) | 21.5 (11.5–41.3) | 8.5 (3.8–17.3)*$ |
| Leg-press power pain, VAS-mm | 23.5 (5.0–34.3) | 20.0 (6.8–42.0) | 10 (2.3–18.0)*‡$ |
| “Timed Up & Go” pain, VAS-mm | 21 (5.5–30.0) | 15.5 (5.0–30.3) | 5.0 (0–23.5)*‡$ |
| “10 m walk” pain, VAS-mm | 20.5 (6.0–40.0) | 20.0 (3.8–33.0) | 5.5 (1.5–18.3)*‡$ |
*Main effect of time, ‡Day 8 significantly different from Pre-surgery, and $Day 8 significantly different from Day 2. Data are medians (inter-quartile range). MVC, Maximal voluntary contraction; VAS, Visual Analog Scale