Bony morphology measures of the pelvis. Acetabular index, neck shaft angle, pelvic and greater trochanter widths. Results by group (mean, 95% CI)
| Measure | ASC (n=20) | GTPS (n=28) | GTR (n=21) | OA (n=20) | ANOVA (p values) |
|---|---|---|---|---|---|
| Neck-shaft angle° | 137.2 (135.1 to 139.4) | 137.1 (135.2 to 139.0) | 133.1 (131.0 to 135.2) | 137.0 (134.8 to 139.1) | 0.021* |
| Acetabular index° | 41.3 (39.8 to 42.9) | 39.9 (38.6 to 41.3) | 39.7 (38.2 to 41.3) | 41.9 (40.3 to 43.5) | 0.129 |
| Acetabular width (A:B) | 1.14 (1.10 to 1.17) | 1.14 (1.08 to 1.20) | 1.16 (0.93 to 1.40) | 1.14 (1.00 to 1.27) | 0.737 |
| Superior GT width (A:C) | 0.87 (0.83 to 0.91) | 0.91 (0.89 to 0.93) | 0.90 (0.0.86 to 0.94) | 0.87 (0.82 to 0.92) | 0.208 |
| Lateral GT width (A:D) | 1.30 (1.25 to 1.35) | 1.32 (1.27 to 1.37) | 1.36 (1.29 to 1.43) | 1.31 (1.26 to 1.36) | 0.455 |
| Superior to lateral GT (C:D) | 1.49 (1.44 to 1.54) | 1.45 (1.41 to 1.49) | 1.50 (1.47 to 1.53) | 1.52 (1.44 to 1.60) | 0.221 |
ACS, asymptomatic control group; ANOVA, analysis of variance; GTPS, greater trochanteric pain syndrome group; GTR, gluteal tendon reconstruction group; OA, hip osteoarthritis group.
↵* Posthoc analysis found that the GTR group has a lower neck-shaft angle than the OA group (p=0.012), the GTPS group (p=0.005) and the ASC group (p=0.007). No other group comparisons approached significance.
A is the distance from the midline to the AIIS. B is the distance from the midline to the lateral acetabulum. C is the distance from the midline to the most superior point of the greater trochanter. D is the distance from the midline to the most lateral aspect of the greater trochanter.