腰椎牵引的力学机制与相关问题的探讨(英文)

Mechanical mechanism and relative problems of lumbar traction

[目的]探讨腰椎牵引的力学机制与相关问题。[方法]根据本院治疗资料，结合文献进行回顾性分析。[结果]牵引重量为：40kg＋体重15％-20％，治疗1606例。按病程分析：3年及其以下者优良率90．1％，3年以上者优良率68．2％。[结论]在重力牵引下，腰骶神经根松弛、移位，偏离了突出髓核的高峰，建立了新的、和谐的“根-盘”关系。压迫或牵引减轻或消失，腰腿痛缓解或痊愈。适宜的牵引重量和正确的体位是提高疗效的关键。

[ Objective] To discuss the mechanism and relative problems of lumbar traction. [ Method] Relevant articles and retrospect clinical data in the author＇s hospital were reviewed. Review relevant articles and retrospect clinical data of our hospital. [Result] Traction force： 40 kg ＋ 15% - 20% of body weight, fineness rate reached 83.5% in 1606 patients being treated. According to course of disease, fineness rate was 90. 1% in the group of less than 3 years, 68.2% in the group of more than 3 years. [ Conclusion] Lumbosacral nerve root leave the peak of the protruding nucleus and establish a new harmonious ＂root-disc＂ relationship after traction. The pressure and tension to the nerve root reduces or disappears, meanwhile, the pain of low back and leg is alleviated or eradicated. Appropriate traction weight and correct traction body posture are key factors of good therapeutic effect.