Development and mechanical testing of a short intramedullary nail for fixation of femoral rotational osteotomy in cerebral palsy patients

Table 4 Torsion tests

Measure	Implant	Mean (SD)	Mean difference	CI 95%
				LL	UL	*p-value*
Torsional relative stiffness (Nm/degree)	Nail	0.35 (0.13)	-0.72	-0.88	-0.55	<0.001
	Plate	1.07 (0.36)
Angular dislocation (degree)	Nail	5.16 (2.18)	3.18	2.11	4.26	<0.001
	Plate	1.98 (0.65)

Mean (standard deviation), mean difference, and confidence interval of the mechanical parameters used in torsion tests for comparison among the two fixation groups.

ISSN: 1475-925X