摘要
目的 观察兔腰神经根慢性压迫后次日开始应用超短波共治疗 1 0次的效果。方法 纯种新西兰成年兔 2 8只 ,4只作神经定位解剖 ,其余 2 4只全部做手术造成腰神经慢性压迫 ,随机分成 2组 ,未处理组和超短波组 ,每组又分 1 0d组、30d组和 1 80d组。压迫模型 :将硅胶管从椎间外孔缓慢塞入椎间管内 ,压迫腰 6和腰 7左侧神经根直到实验兔被处死 ,右侧为自身对照侧。电生理测定潜伏时 (latency,Lat)和神经传导速度 (nerveconductionvelocity,NCV)。脉冲超短波于手术后的次日开始应用 ,无热量 ,1 0min,对置 ,治疗间隙 3cm ,每日一次 ,共 1 0次。结果 未处理组中 1 0d组神经根手术侧与非手术侧比较 ,潜伏时和神经传导速度均无差异 ;而 30d组与 1 80d组的潜伏时显著延长、神经传导速度显著减慢。超短波治疗的神经传导速度 1 0d组的 1 2 .31± 2 .41m/s逐渐恢复到 1 80d组的 1 6.78± 1 .36m/s(t=3 .2 4 ,P <0 .0 5) ,与非手术侧的 1 7.69± 1 .2 4m/s基本无差异 (t=0 .1 8,P <0 .0 5)。而未处理组的神经传导速度为 1 1 .2 6±1 .2 5m/s,虽有逐渐恢复的趋势但仍明显慢于非手术侧的1 8.0 7± 1 .36m/s(t=3 .65,P <0 .0 5)。结论 腰神经根慢性受压后 ,由于其可塑性 ,存在自行恢复的能力。若早期应用超短波治疗能及?
Objective To observe the effect of ultrashort wave on the chronic lumbar spinal nerve root compression. Methods Twenty eight pure New Zealand rabbits were used, of which four were for nerve localization and the rest were randomized into untreatment group and ultrashort wave groups, after the establishment of the nerve root compression models by inserting a silastic tube into the intervertebral canal to compress the sixth and seventh left lumbar nerve roots. Electrophysiological tests including latency and nerve conduction velocity were analyzed.On 10,30, and 180 days after the operation, respectively, the data obtained from the non operated rabbits and that from the contralateral sides served as control. Results In the untreatment group, the latency was significantly longer and the nerve conduction velocity was significantly slower than those observed on the 10th day, after 30 days and 180 days post operation. In the ultrashort wave group (once a day for 10 days), the nerve conduction velocity was gradually recovered from 12.31±2.41m/s at 10 days to 16.78 ±1.36m/s at 180 days( t =3.24, P <0.05),which was close to the value of 17.69±1.24m/s obtained on the non operated side. Conclusion Early application of ultrashort wave is helpful to relieve the edema and aseptic inflammatory changes after nerve root compression, and beneficial to enhance the recovery of nerve function.
出处
《中华物理医学与康复杂志》
CAS
CSCD
北大核心
2002年第6期342-344,共3页
Chinese Journal of Physical Medicine and Rehabilitation
基金
山东省自然科学基金 (No .Y2 0 0 1c2 2 )
山东省科委课题 (No .9730 0 0 0 55)
