Quantification of cephalomedullary nail fit in the femur using 3D computer modelling: a comparison between 1.0 and 1.5m bow designs

Table 1 Nail protrusion areas and distances

	Overall (N = 63)			Caucasian (n = 31)			Asian (n = 32)
	TFNA	Gamma3	P	TFNA	Gamma3	P	TFNA	Gamma3	P
Total surface area of nail protrusion (mm²)	915.8 (±948.6)	1181.6 (±1157.1)	<0.05	583.3 (±665.6)	792.4 (±914.9)	0.0009	1238.0 (±1073.8)	1558.6 (±1252.8)	0.000002
Maximum distance of nail protrusion (mm)	1.9 (±1.5)	2.1 (±1.8)	0.007	1.3 (±0.9)	1.5 (±1.2)	0.08	2.4 (±1.7)	2.7 (±2.1)	0.04

ISSN: 1749-799X