Biomechanical Comparison of a New Memory Compression Alloy Plate versus Traditional Titanium Plate for Anterior Cervical Discectomy and Fusion: A Finite Element Analysis

Table 4

The maximum von Mises stresses at the adjacent endplates in the three groups (MPa).

Group		Flexion	Extension	Left bending	Right bending	Left rotation	Right rotation
C5 inferior endplate	Group1	11.64	14.57	13.30	11.47	9.76	7.41
	Group2	16.58	29.39	18.67	16.50	11.90	28.31
	Group3	30.23	53.33	41.10	35.12	16.55	52.13
C6 superior endplate	Group1	4.76	9.28	7.28	5.88	7.81	4.48
	Group2	5.01	14.08	9.25	11.02	29.43	10.31
	Group3	18.67	21.76	21.91	19.54	51.83	15.57

Note: Group1 refers to the intact group, Group2 refers to the traditional plate group, and Group3 refers to the new prosthesis.