Finite Element Analysis and Comparative Study of 4 Kinds of Internal Fixation Systems for Anterior Cervical Discectomy and Fusion in Children

Table 1

The motion range of the four internal fixation systems in different motion states (, mm).

Motion	ACOP	ACVLP	ACSLP	ACBLP
Ante flexion		^a	^ab	^ab
Backward flexion		^a	^ab	^ab
Left flexion		^a	^ab	^ab
Right flexion		^a	^ab	^ab
Left rotation		^a	^ab	^ab
Right rotation		^a	^ab	^ab

Note: compared with the ACOP group, ^a; compared with the ACVLP group, ^b; and compared with the ACSLP group, ^c.