Retention group (39 hips) | Progression group (14 hips) | p value | |
---|---|---|---|
Age (years) | 11.9 | 11.6 | 0.420* |
BMI | 24.2 | 26.1 | 0.118* |
PTA at ISF (degrees) | 33.7 | 32.6 | 0.944* |
PTA at physeal closure (degrees) | 34.6 | 39.5 | 0.077* |
Progression of PTA (degrees) | 0.9 | 6.9 | 0.001* |
SCFE type (acute: acute on chronic: chronic) | 9:12:18 | 3:0:11 | 0.043¶ |
Stability (stable: unstable) | 35:4 | 13:1 | 1.000§ |
Screw position (1:2:3)† | 22:14:3 | 7:5:2 | 0.759¶ |
Distribution of threads (1:2)‡ | 17:22 | 3:11 | 0.203§ |
Point of insertion (lateral:medial) | 25:14 | 3:11 | 0.011§ |
Time for full-weight bearing (weeks) | 4.8 | 3.4 | 0.165* |
Time for physeal closure (months) | 12.1 | 15.4 | 0.088* |