Transfixing Kirshner wires for fixation of intertrochanteric valgus osteotomies in management of pediatric coxa vara

Journal of Orthopaedics and Traumatology

Official Journal of the Italian Society of Orthopaedics and Traumatology

Table 1 Characteristics of the studied cases

Parameters		Age (months)	Etiology	Previous surgery	Union time of the osteotomy (weeks)	Follow up period (months)	Comments
Patients	Cases	Age (months)	Etiology	Previous surgery	Union time of the osteotomy (weeks)	Follow up period (months)	Comments
1 (Male)	1	29	DCV	–	10	22	Gluteal heterotropic ossification
1 (Male)	2	29	DCV	–	10	22	–
2 (Male)	3	34	DCV	–	9	29	Medialization of the femur
2 (Male)	4	34	DCV	–	14	29	–
3 (Male)	5	31	DCV	Adductor tenotomy	13	15	–
3 (Male)	6	31	DCV	Adductor tenotomy	13	15	–
4 (Female)	7	44	DCV	Failed previous osteotomy	15	27	Medialization of the femur LLD 1 cm
5 (Male)	8	45	Healed rickets	–	11	102	Sunken wires
5 (Male)	9	45	Healed rickets	–	11	102	Sunken wires
6 (Male)	10	26	DCV	–	9	22	–
6 (Male)	11	26	DCV	–	9	22	–
7 (Male)	12	69	Atypical DCV	–	15	19	Premature closure of the epiphysis Medialization of the femur Gluteal heterotropic ossification.
8 (Female)	13	66	DCV	–	15	36	–
8 (Female)	14	66	DCV	–	14	36	–
9 (Female)	15	32	DCV	–	10	17	–
9 (Female)	16	32	DCV	–	10	17	–
Mean		39.9 ± 14.7			11.7 ± 2.2	33.3 ± 27.7

Parameters
Patients	Cases	Pre-op. IOWA score	Post-op. IOWA score	Pre-op. FNSA	Early post-op. FNSA	Last follow-up FNSA	Pre-op. HEA	Early post-op. HEA	Last follow-up HEA
1 (Male)	1	55	94	91	136	138	88	22	22
1 (Male)	2	55	94	91	135	138	88	24	22
2 (Male)	3	63	96	88	140	142	83	27	25
2 (Male)	4	60	95	89	139	139	84	26	22
3 (Male)	5	58	95	79	140	140	79	25	25
3 (Male)	6	58	95	79	140	140	80	27	27
4 (Female)	7	59	91	89	137	141	77	28	26
5 (Male)	8	60	95	117	132	135	61	23	20
5 (Male)	9	60	96	116	133	137	64	24	20
6 (Male)	10	53	97	88	134	134	88	27	27
6 (Male)	11	53	97	88	136	136	88	29	29
7 (Male)	12	62	96	86	130	130	87	26	Could not be accurately detected (premature physeal closure)
8 (Female)	13	52	96	76	142	144	85	23	21
8 (Female)	14	52	95	76	141	142	85	22	20
9 (Female)	15	58	97	90	141	141	84	29	29
9 (Female)	16	58	96	90	140	140	86	29	29
Mean		57.3 ± 3.5	95.3 ± 1.2^a	89.7 ± 11.7	137.3 ± 3.7^b	138.6 ± 3.5	81.6 ± 8.2	25.7 ± 2.5^c	24.3 ± 3.5
P value		<0.001		<0.001			<0.001
P value					NS			NS

FNSA femoral neck shaft angle, HEA hilgenreiner-epiphyseal angle, DCV developmental coxa vara, LLD limp length discrepancy, NS non-significant difference between early post-op. and last follow-up FNSA and HEA angles
^aSignificant difference between post-op. IOWA score and pre-op. IOWA score
^bSignificant difference between early post-op. FNSA and pre-op. FNSA
^cSignificant difference between early post-op. HEA and pre-op. HEA