Table 3.

Stress distribution, peak and position analysis for internal fixation. *p<0.05 compared with PFNA 200 mm.

PFNA length	Evans Type IV				Type V
	Internal fixation proximal medial stress peak (MPa)	Proximal lateral stress peak	Distal medial stress peak	Distal lateral stress peak	Proximal medial stress peak	Proximal lateral stress peak	Distal medial stress peak	Distal lateral stress peak
200 mm	156.48±8.52	112.62±9.67	35.68±4.62	15.23±3.63	168.95±10.25	113.74±14.63	38.62±11.52	14.47±13.26
240 mm	112.36±6.54*	98.43±7.62	52.85±5.23	16.37±3.57	124.52±12.32	106.95±16.25	58.93±12.25	15.58±13.26
280 mm	108.51±6.38*	93.54±7.84	55.43±5.57	16.58±3.34	119.67±13.54	108.52±13.52	61.25±14.52	16.23±15.63