动态中和固定系统治疗腰椎退行性疾病的研究进展

摘要

动态固定技术治疗腰椎退行性疾病日益成为基础和临床研究的热点.动态中和固定系统(dynamic neutralization system,Dynesys)作为动态固定技术的一种,既能保持脊柱的活动能力,改善患者的临床症状,还在延缓邻近节段退变方面表现出一定的优势.Dynesys技术可作为腰椎融合之外治疗腰椎退行性疾病的另一最佳选择,主要适用于轻至中度的腰椎退变性疾病,但它缺乏保持和恢复腰椎前凸的机制需要患者主动伸展实现前凸.如何延长使用寿命、预防并发症发生等问题有待解决,其远期疗效及延缓邻近节段退变作用机制需进一步明确.%Dynamic stabilization technology has increasingly become the hot spot in basic and clinical research for treating lumbar degenerative diseases.As one kind of dynamic stabilization technology,dynamic neutralization system (Dynesys) keeps the spinal motion ability and improve clinical symptoms of patients,moreover,it shows a certain advantage in delaying the degeneration of adjacent segments.From the available documents,the preliminary biomechanical and clinical results of Dynesys were optimistically,it has become another choice in treating the lumbar degenerative diseases besides the lumbar fusion,and it primarily applies to the treatment of mild to moderate lumbar degenerative disease.However,it lacks a mechanism to maintain and restore the lumbar lordosis and patients need active stretching to achieve lordosis.What's more,how to extend the service life and prevent complications remain to be solved,the long-term effect and the mechanism of delaying the adjacent segment degeneration need further investigation.In this article,the design principle,biomechanical research,clinical outcome and clinical application of Dynesys was reviewed.