Table 1.

Procedures for each patient

Case no.	Sex	Age at Operation (y.mo)	Trauma‐to‐surgery interval (mo)	Ulnar lengthening at osteotomy site (cm)	Ulnar angulation at osteotomy site (°)	Follow‐up (mo)	Postoperative complications	Additional treatment	Kim score
1	M	4	8	0.5	30	36	–	–	100
2	F	4.8	36	0.5	30	24	Loss of extension (20°)	K‐wire fixing	80
3	M	3.11	2	0.7	30	43	–	–	95
4	M	8	2	0.5	20	29	–	–	100
5	M	7	4	0.6	25	25	–	–	95
6	M	5	12	0.8	30	19	–	–	100
7	M	7	3	1.2	30	17	Delayed union 5 mo healed. Loss of extension (35°)	Plaster casts	85
8	F	2.2	13	0.6	25	38	–	–	100
9	M	4.4	17	0.7	30	16	–	–	95
10	M	5	27	1.2	30	20	Delayed union 6 mo healed. Loss of extension (30°) Cubitus valgus (30°)	Plaster casts	80
11	M	7	4	0.8	25	17	Skin irritation. Delayed union 6 mo healed.	Plaster casts	95
12	M	10	9	0.7	30	44	–	–	100
13	M	7	15	0.8	25	24	–	–	90
Mean	–	5.8	12	0.7	28	27	–	–	93

F, female; M, male; mo, months; y, years.