The Biomechanical Test of Experimental Spinal Burst fracture

• Main Authors: Tzung-Hsiou Lee, 李宗修
• Other Authors: Y.L. Chou
• Format: Others
• Language: zh-TW
• Published: 1993
• Online Access: http://ndltd.ncl.edu.tw/handle/32166049117301626268

碩士 === 國立成功大學 === 醫學工程學系 === 81 === nce advent of three-column theory, burst fracture of the spinal n has long been recognized as the most common fracture of thecolumbar spine. In the literature recently, new information being e classification, concepts of stability and instability, needurgery, and selection of the most appropriate surgical implant.action force with kyphosis correction has been thought the mosttive way in reducing the retropulsed fragment, either during thetion by variable implants or by traction device preoperatively,as traction bow device. A number of biomechanical studies hasdone on the isolated lumbar spine under axial loads to determineoad distribution. Little study was performed on the whole spinetraction to determine the relative distribution of strain.urpose of this study is to use the whole spine of goat under theload in INSTRON machine and Traction Bow to investigate thechanical properties such as strain distribution, deformation ofand load-to-failure. Next, we try to reproduce a burst fracturefor further study in traction-reduction experiment.m the strain distribution diagram, the junction of thoracolumbarbears the larger strain. The strain in the thoracic region iste, in contrast, the strain in lower lumbar is smaller in ouriment. In this study, strain distributions of spinal columnTRON machine andion Bow are similar. However, the strain values from Tractions smaller. In conclusion, the junction of thoracolumbar spine iseffective in traction from its larger strain distribution. Henceng the appropriate traction force in intact cervical vertebraehave a better reduction effect to burst fracture of thoracolumbarbrae. The load-deformation diagram, total deformation, andum loading in this study will be helpful for related researchese future.