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

Table 3

The ranges of motion at different discs among the three groups (degrees).

Group		Flexion	Extension	Bending	Rotation
C4-5 disc	Group1	3.9	4.2	7.4	4.4
	Group2	4.6	4.7	8.5	6.3
	Group3	4.4	4.5	7.9	5.3
C5-6 disc	Group1	3.7	3.6	4.9	4.3
	Group2	0	0	0	0
	Group3	0.2	0.1	0.2	0.2
C6-7 disc	Group1	3.1	3.2	5.0	2.4
	Group2	4.2	3.7	6.3	5.3
	Group3	3.3	3.3	5.2	4.6

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