Table 1.

baseline information of the patients.

Parameters	UO (n = 15)	ALR (n = 36)	P value
Age (years)	6.1 ± 2.3	9.8 ± 2.8	<.001
Sex
male	7	21	.46
Female	8	15
Side
Left	6	14	.95
Right	9	22
Bado classification
Type I	14	36	.12
Type III	1	0
From initial injury to surgery (m)	8.6 ± 3.2	23.3 ± 12.6	<.001
Follow-up time (years)	3.5 ± 1.1	3.4 ± 1.0	.75
Pre-op ROM of elbow
Extension	−1.8 ± 1.8	−2.2 ± 1.9	.53
Flexion	108.1 ± 5.8	112.0 ± 6.1	.047
Pronation	69.3 ± 9.0	63.0 ± 8.7	.034
Supination	73.3 ± 4.3	71.9 ± 5.3	.34
Pre-op MEPI score	67.6 ± 5.0	66.6 ± 4.4	.51

ALR = annular ligament reconstruction, UO = ulnar osteotomy alone.