Table 1.
Demographic and surgical data of the cohort.
| Parameter | Whole cohort (n = 28) | RFNL group (n = 8) | RFNL + THR group (n = 20) | P value |
|---|---|---|---|---|
| Mean age @ RFNL, y ± SD (range) | 38.1 ± 11.4 (16-58) | 30.8 ± 10.1 (18-48) | 41.0 ± 10.8 (16-58) | .032b |
| Mean age @ THR, y ± SD (range) | 41.8 ± 10.6 (18-59) | - | 41.8 ± 10.6 (18-59) | - |
| Gender | .6c | |||
| Male (n, %) | 10 (35.7) | 3 (37.5) | 7 (35.0) | |
| Female (n, %) | 18 (64.3) | 5 (62.5) | 13 (65.0) | |
| Mean follow-up, y ± SD (range) | 4.0 ± 1.8 (1.9-8.7) | 4.2 ± 2.1 (2.0-6.6) | 3.9 ± 1.8 (1.9 ± 8.7) | .8b |
| Comorbidities | .5c | |||
| Obesity (BMI > 30), n (%) | 2 (7.1) | - | 2 (10.0) | |
| Cerebral palsy | 1 (3.6%) | - | 1 (5.0%) | |
| Ehlers-Danlos | 1 (3.6%) | - | 1 (5.0%) | |
| Achondroplasia | 1 (3.6%) | - | 1 (5.0%) | .5c |
| Previous hip surgery | ||||
| PAO, n (%) | 3 (10.7) | 1 (12.5) | 2 (10.0) | .7c |
| Shelf, n (%) | 3 (10.7) | 1 (12.5) | 2 (10.0) | .7c |
| VDRO, n (%) | 6 (21.4) | 1 (12.5) | 5 (25.0) | .6c |
VDRO, varus derotation osteotomy; PAO, periacetabular osteotomy.
b
Independent samples t-test.
c
Fisher’s exact test.