Table 3.
Results of the morphologic examinations of the iliocapsularis muscle
| Parameters | Location | All | p Value | Men | p Value | Women | p Value | |||
|---|---|---|---|---|---|---|---|---|---|---|
| Group I | Group II | Group I | Group II | Group I | Group II | |||||
| Depth (cm) | A | 1.6 ± 0.4 (1.0–2.8) | 1.4 ± 0.4 (0.8–2.4) | 0.01 | 1.7 ± 0.4 (1.1–2.8) | 1.5 ± 0.3 (1.1–2.4) | 0.15 | 1.5 ± 0.3 (1.0–2.5) | 1.3 ± 0.3 (0.8–1.8) | < 0.001 |
| Diameter (cm) | A | 2.7 ± 0.6 (1.7–4.0) | 2.0 ± 0.5 (0.9–3.9) | < 0.001 | 2.9 ± 0.6 (2.1–4.0) | 2.2 ± 0.3 (1.8–2.7) | < 0.001 | 2.6 ± 0.5 (1.7–3.6) | 1.8 ± 0.5 (0.9–3.1) | < 0.001 |
| Circumference (cm) | A | 7.2 ± 1.3 (5.1–11.5) | 5.5 ± 1.1 (2.7–7.5) | < 0.001 | 7.7 ± 1.6 (5.4–11.5) | 6.1 ± 0.7 (5.0–7.5) | < 0.001 | 6.9 ± 1.2 (5.1–10.0) | 5.0 ± 1.2 (2.7–7.2) | < 0.001 |
| CSA (cm2) | A | 2.5 ± 0.9 (1.2–5.2) | 1.8 ± 0.6 (0.6–3.0) | < 0.001 | 3.0 ± 1.1 (1.3–5.2) | 2.2 ± 0.4 (1.6–3.0) | 0.01 | 2.3 ± 0.7 (1.2–4.5) | 1.5 ± 0.6 (0.6–2.6) | < 0.001 |
| Fatty infiltration [11] | ||||||||||
| Grade 0 | A | 35 (78%) | 23 (58%) | 0.04 | 18 (78%) | 13 (72%) | 0.79 | 17 (77%) | 10 (45%) | 0.03 |
| Grade 1–4 | 10 (22%) | 17 (42%) | 5 (22%) | 5 (28%) | 5 (23%) | 12 (55%) | ||||
| Depth (cm) | B | 2.1 ± 0.4 (1.2–2.9) | 1.7 ± 0.4 (1.0–2.7) | < 0.001 | 2.3 ± 0.4 (1.8–2.9) | 2.0 ± 0.3 (1.3–2.7) | 0.01 | 1.9 ± 0.4 (1.2–2.9) | 1.4 ± 0.3 (1.0–2.1) | < 0.001 |
| Diameter (cm) | B | 2.6 ± 0.5 (1.7–3.7) | 2.2 ± 0.5 (1.1–3.1) | < 0.001 | 2.9 ± 0.5 (2.1–3.7) | 2.4 ± 0.4 (1.7–3.1) | < 0.001 | 2.5 ± 0.4 (1.7–3.4) | 1.9 ± 0.4 (1.1–3.0) | < 0.001 |
| Circumference (cm) | B | 7.7 ± 1.3 (5.6–11.4) | 6.2 ± 1.2 (4.0–8.2) | < 0.001 | 8.6 ± 1.3 (6.5–11.4) | 7.0 ± 0.7 (6.0–8.2) | < 0.001 | 7.3 ± 1.1 (5.6–10.4) | 5.5 ± 1.0 (4.0–7.3) | < 0.001 |
| CSA (cm2) | B | 3.1 ± 1.0 (1.7–5.9) | 2.3 ± 0.9 (0.9–4.4) | < 0.001 | 4.0 ± 1.1 (2.4–5.9) | 2.9 ± 0.8 (1.5–4.4) | < 0.001 | 2.7 ± 0.7 (1.7–4.2) | 1.8 ± 0.6 (0.9–2.8) | < 0.001 |
| Fatty infiltration [11] | ||||||||||
| Grade 0 | B | 32 (71%) | 20 (50%) | 0.04 | 17 (74%) | 11 (61%) | 0.30 | 15 (68%) | 9 (41%) | 0.06 |
| Grade 1–4 | 13 (29%) | 20 (50%) | 6 (26%) | 7 (39%) | 7 (32%) | 13 (59%) | ||||
| Volume (cm3) | – | 9.7 ± 3.2 (4.8–18.1) | 6.6 ± 2.6 (2.2–12.2) | < 0.001 | 12.2 ± 3.7 (6.8–18.1) | 8.7 ± 1.9 (6.1–12.2) | < 0.001 | 8.5 ± 2.3 (4.8–15.9) | 5.0–1.9 (2.2–8.3) | < 0.001 |
CSA = cross-sectional area; Location A = 4 cm inferior to the AIIS; Location B = first section of the MRI inferior to the femoral head.