Optimum Configuration of Cannulated Compression Screws for the Fixation of Unstable Femoral Neck Fractures: Finite Element Analysis Evaluation

Table 5

Maximum stress (Mpa) on each CCS of five models.

	Triangle			Inverted triangle			Anterior triangle			Posterior triangle			Vertical model
	S	IP	IA	SP	SA	I	S	A	I	S	P	I	S	M	I
500N	224	197	212	260	276	225	218	207	204	257	182	223	217	186	217
1000N	444	400	426	524	543	451	437	416	419	511	372	454	432	368	441
1500N	659	608	643	797	803	675	657	625	642	759	568	692	643	543	670
2100N	865	819	860	1068	1068	899	872	837	872	990	768	934	846	709	902