Temporary hemiepiphysiodesis using an eight‐plate implant for coronal angular deformity around the knee in children aged less than 10 years: efficacy, complications, occurrence of rebound and risk factors

Table 4 Risk factors for rebound by univariate analysis and logistic regression analyses

Influencing factors	Rebound (N = 3)	Non-rebound (N = 98)	P	Logistic regression Odds ratio (95% CI^a)	P
Age	6.67 ± 2.52	4.64 ± 2.60	0.297	2.03 (0.89–4.61)	0.092
Weight	22.17 ± 6.29	21.20 ± 7.52	0.817	0.83 (0.62–1.12)	0.231
Unilateral	2 (67)	30 (31)	0.235	0.18 (0.01–3.98)	0.279
Genu valgus	3 (100)	60 (61)	0.289
Idiopathic	1 (33)	47 (48)	1.000	0.83 (0.04–16.52)	0.902
Screw location			0.518	0.45 (0.06–3.24)	0.430
Distal femur alone	2 (67)	39 (40)
Proximal tibia alone	0 (0)	26 (26)
Both sites	1 (33)	33 (34)
Location of the centre of the mechanical axis preoperatively^b			0.596	0.93 (0.05–16.23)	0.962
2	2 (67)	45 (46)
3	1 (33)	53 (54)

^aCI indicates confidence interval
^babsolute value of the location of the centre of the knee mechanical axis preoperatively (zones 1, 2, 3, -1, -2 and -3)
Values are presented as the mean±SD (range) or frequency (percentage)
Bold values are statistically significant, P < 0.05

ISSN: 1471-2474