Dissertation > Medicine, health > Surgery > Orthopaedic Surgery ( movement system diseases,orthopedic surgery ) > Orthopedic surgery and surgery > Bone surgery

Partial resection of the posterior longitudinal ligament into the treatment of disc herniation Cage biomechanical analysis

Author WangZuo
Tutor HuangXueZuo
School Yanbian University
Course Anesthesiology
Keywords cervical vertebra cage fusion finite element biomechanics
CLC R687.3
Type Master's thesis
Year 2011
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Objective:To analyze the biomechanical influences on cervical vertebra after the removal of nucleus going with the cervical disc degradation, and to inspect the immediate stability and bone fusion rate with artificial double Cage fusion setting into intervertebral disc.Methods:to establish precisely with CAE method four finite element models as followed:C3-6 normal height disc model、C4-5 height decreased disc model、C5-6 height decreased disc model、C4-5&C5-6 height decreased disc model.With these models,we can examine the biomechanical parameters of decreased disc models and Cage fusion model in anterior bent、posterior extent、lateral bent、axial rotary state.Results:To a great extent, the applications of double Cage fusion debases the s C4, C5 & C6 vertebral body maximum Von Mises stress which is close to the stress values in C3-6 normal height disc model. Conclusion:Double Cage fusion has good mechanical strength to rebuild the stability of the cervical spine, and can meet the needs of clinical cervical interbody fusion requirements.

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