title: [Three-dimensional Finite Element Analysis of Biomechanical Effect of Rigid Fixation and Elastic Fixation on Lumbar Interbody Fusion].
abstract: This study was aimed to compare the mechanical characteristics under different physiological load conditions with three-dimensional finite element model of rigid fixation and elastic fixation in the lumbar. We observed the stress distribution characteristics of a sample of healthy male volunteer modeling under vertical, flexion and extension torque situation. The outcomes showed that there existed 4-6 times pressure on the connecting rod of rigid fixation compared with the elastic fixations under different loads, and the stress peak and area of force on elastic fixation were much higher than that of the rigid fixations. The elastic fixation has more biomechanical advantages than rigid fixation in promoting interbody lumbar fusion after surgery.
authors.forename: Jiangbo
authors.initials: J
authors.lastname: Wei
authors.forename: Yueming
authors.initials: Y
authors.lastname: Song
authors.forename: Limin
authors.initials: L
authors.lastname: Liu
authors.forename: Chunguan
authors.initials: C
authors.lastname: Zhou
authors.forename: Xi
authors.initials: X
authors.lastname: Yang
mesh_terms: D001696:Biomechanical Phenomena; D020342:Finite Element Analysis; D006801:Humans; D008159:Lumbar Vertebrae / Q000601:surgery*; D008297:Male; D008962:Models, Theoretical; D011312:Pressure; D016059:Range of Motion, Articular; D013123:Spinal Fusion