TABLE 1.
Demographics and Patient-Reported Outcomesa
| FAI (n = 16) | FAD (n = 18) | CTRL (n = 18) | |
|---|---|---|---|
| Presence of cam deformity | Yes | Yes | No |
| Positive impingement test result | Yes | No | No |
| Sex, male/female, n | 14/2 | 15/3 | 16/2 |
| Height, m | 1.74 ± 0.07 | 1.77 ± 0.09 | 1.74 ± 0.09 |
| Age,b y | 38.5 ± 8.0 | 32.5 ± 7.1 | 32.8 ± 7.0 |
| Body mass index, kg/m2 | 26.8 ± 5.0 | 25.7 ± 1.9 | 25.5 ± 3.3 |
| Axial alpha angle, deg | 57 ± 6 | 58 ± 7 | 43 ± 4 |
| Radial alpha angle, deg | 67 ± 5 | 70 ± 7 | 52 ± 5 |
| Femoral neck-shaft angle,b deg | 123 ± 3 | 127 ± 3 | 127 ± 2 |
| HOOS | |||
| Symptomsb | 65.6 ± 14.4 | 95.3 ± 7.2 | 97.8 ± 5.7 |
| Painb | 66.3 ± 16.3 | 98.2 ± 4.6 | 98.8 ± 4.2 |
| Activities of daily livingb | 75.7 ± 17.9 | 99.6 ± 1.2 | 100.0 ± 0.0 |
| Sport/recreationb | 56.3 ± 22.0 | 97.9 ± 6.4 | 99.7 ± 1.5 |
| Quality of lifeb | 39.5 ± 19.3 | 95.8 ± 8.3 | 98.6 ± 4.6 |
aData are reported as mean ± SD unless otherwise indicated. CTRL, control; FAD, femoroacetabular deformity; FAI, femoroacetabular impingement; HOOS, Hip disability and Osteoarthritis Outcome Score.
bThe FAI group differed significantly from the FAD and CTRL groups (P < .001).