Clinical Evaluation And Consideration On Finite Element Modeling:Backward Pulling And Extension Manipulation In Treating Lumbar Intervertebral Disc Protrusion

Objective:Lumbar intervertebral disc protrusion (LIDP) is common clinical disease.The morbidity of LIDP is about15%-30%. This paper is based on systematic analysis of the clinical literature This study aims to evaluate the Clinical evaluation by Tuina model of Backward Pulling and Extension Manipulation in Treating Lumbar Intervertebral Disc Protrusion.How to constructe3D finite element model of L4-5segments based on normal lunbar MRI images is considerd.Method:90patients suffering from LIDP were randomly divided into three groups:Treatment Group (treated with both basic manipulation and backward pulling and extension manipulation),Control Group1(treated with both basic manipulation and oblique Traction)and Control Group2(treated with basic manipulation).Evaluated by Sign Symptom Score and McGill pain questionnaire score are used to be Outcomes.3D finite element model of L4-5segments were constructed based on normal lunbar MRI images.Results:1.The scores in both groups decreased significantly after respetive treatment. It shows that both model was salutary.The total effective rate backward pulling and extension manipulation group was higher than basic manipulation group after comparison among three groups.2. A reliable3D entity model established by the human lumbar MRI images has the totally same anatomical relationship with the entity of the lumbar spine. The model can be used to mechanical analysis for the next step.Conclusion:backward pulling and extension manipulation, an effective Tuina method in the treatment Lumbar intervertebral disc protrusion,has positive curative effects and is superior to other routine conservative methods. It has higher value in clinical application.