Finite element analysis for Cross-link Device ’ s effect in posterior approach for congenital scoliosis of ;hemi-vertebra
Abstract：Objective To explore the effect of Cross-link Device ( CLD) in posterior spinal approach by establishing finite element model through simulating spine flexion , extension, lateral bending and rotation after motion.Methods The finite element model of T12 vertebrae with Cobb’ angle of 42 degrees was established to simulate the spine flexion,extension,lateral bending and rotation .There were two groups in the study ,one was CLD group and the other one was NCLD group without cross-link,then burden was loaded on the surface of T 9 centrum in the model of both groups to simulate spine flexion , extension , lateral bending and rotation after motion , and angular displacement was recorded and statistically analyzed .Results With the loading force increasing ,angular displacement of the model in T 10-L2 of both groups was increased gradually , which showed a linear increase basically.However there was no significant difference between CLD group and NCLD group ( P >0.05). Conclusion There is no need to use CLD after the patient is performed pedicle fixation in adjacent two vertebra for semi-vertebrae resection .
Keywords：finite elementcongenital scoliosiscross-link devicehemi-vertebraebiomechanics
Publication Date：2013-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：3( 3212-3214 )