Biomechanical evaluation of peak reverse torque (PRT) in a dynamic compression plate-screw construct used in a goat tibia segmental defect model

Table 2 The prevalence of cortical fractures within each screw type for each screw position

	Screw Type
Position	NST			ST
	Total (n)	Intracortical Fracture (n)	Intracortical Fracture (% of total)	Total (n)	Intracortical Fracture (n)	Intracortical Fracture (% of total)
1	30	2	6.7	11	1	9.1
2	29	6	20.7	11	1	9.1
3	29	5	17.2	11	1	9.1
4	29	12	41.4	11	1	9.1
5	29	9	31.0	11	1	9.1
6	30	3	10.0	11	0	0

The intracortical fractures occurred in the trans cortex more frequently during the placement of the non-self-tapping screws [36] as compared with the self-tapping screws [5]. The position most commonly associated with the fractures were position no. 4 and position no. 5 in the NST screws group. In the ST screws group the fractures were more equally distributed between the positions

ISSN: 1746-6148