摘要
目的检测记忆金属网球的生物力学性能,并探讨金属网球后凸成形装置应用于骨质疏松性椎体压缩骨折治疗的可行性。方法采用不同直径镍钛记忆合金丝编织高弹金属网球,将两端圆孔和周围固定后检测金属网球抵抗压缩力,并制作金属网球拉伸和挤压后凸成形装置,观察其进行后凸成形术的效果。结果随镍钛记忆合金丝直径的增大,其最大抵抗压缩力逐渐升高,直径0.38mm合金丝编织的金属网球抵抗压缩力达到162.39N,金属网球后凸成形装置可通过椎弓根进行后凸成形术。结论金属网球后凸成形装置是治疗骨质疏松性椎体压缩骨折的一种新方法,其临床治疗效果尚需进一步研究。
Objective To measure the biomechanics of memory alloy wire netting ball and investigate the application of the kyphoplasty instrument for osteoporosis vertebra compression fracture. Methods Super elasticity netting ball was made of memory alloy nickel-titanium wire with different diameter. The loading and unloading strength were measured after making the netting ball bipolar and two sides fixed. An instrument was made to extend and compress netting ball to investigate its kyphoplasty effect for osteoporosis vertebral compression fracture. Results The maximal loading strength increased along with the diameter of memory alloy wire and it could be 162.39 N when using 0.38 mm diameter wire to make netting ball. The kyphoplasty instrument of netting ball could work through pedicle of vertebral arch. Conclusion The kyphoplasty instrument of memory alloy wire netting ball could be a new method to treat osteoporosis vertebra compression fracture, and the clinical effect still need further study.
出处
《医用生物力学》
EI
CAS
CSCD
2006年第3期231-234,共4页
Journal of Medical Biomechanics
基金
国家自然科学基金资助(39670731)
