Applied Biomechanics Investigate Cervical Bowstring From The Vertebral Artery Cervical Spondylosis Transferred To The Relevant Factors,

Objective:Cervical Spondylopathy of Vertebral Artery(CSA)is the vertebral artery spasm caused by oppression or at the end of the vertebral artery insufficiency as the main symptoms of a type of cervical spondylosis (Cervical Spondsyosis,CS),the incidence rate after cervical nerve root disease,accounting for about 10 percent of cervical disease to 15 percent. Its symptoms are complex and changing,such as vertigo,dizziness, headaches,neck and shoulder pain,tinnitus,insomnia,visual impairment, memory obstacles,balance disorders.At present,treatment methods of Cervical Spondylopathy of Vertebral Artery are variable,and cervical traction therapy is a more effective one,but angle,weight,way of cervical spine traction now remain uncertain,and more concentrated in the neck type of cervical nerve root of the application,to which CSA is not necessarily suitable.This topic discusses the distributed rule of cervical vertebra curvature arc apex of the CSA patients and obtains CSA good to send the spot,and analyses the relations between arc apex distribution and the change of cervical physiological curvature index(CPCI),which uses Borden' s method to measure the mensuration;Discusses the influence of angle,weight and way of cervical spine traction on CPCI and prognosis of CSA and obtains suitable cervical traction therapy method to CSA.Methods:To study the distributional characteristic of location of cervical lordosis arc apex on lateral X-ray of 65 CSA patients.(2)60 CSA patients were divided into A group(GA,30 patients)using intermittent traction and B group(GB 30 patients)using continuous traction with the seat pillow jaw belt.GA,which towed 30S,intermittent 10S with altogether the time 15-20 minutes,was related to different position of pathology and X-ray: The physiological curvature which changed straight used traction of middle or flection;The counter-tune used traction of middle or extension; After on neck section C1-3 extended 5-10°,C4-5 remained 0°,C5-6 performed traction of flexion 5-10°,C6-7 performed traction of flexion 15°;GB using continuous traction with the seat pillow jaw belt underwent traction of middle.The weight of traction of each group was less than 15-20%of every patient body weight,of which the time was 20 minutes.Results:(1)In the distributed frequency of position of cervical vertebra curvature arc apex of 65 CSA patients,frequency of C4 was most(20.0%);C5 which distributes by C4 in was next(11.0%);next under C4 next(13.8%);C6 was least(1.5%).To carry on the variance analysis of the value of cervical physiological curvature index(CPCI)of each group,the result was P＞0.05,and there were non-statistics significance among the value of arc apex of cervical physiological curvature index(CPCI)of the different CSA patients.(2)The different way of traction had nonstatistics significance in changing the cervical physiological curvature index(CPCI)(P＞0.05);The different angle of traction had statistics significance in changing the cervical physiological curvature index (CPCI)(P＜0.05),and the middle position and the anteflexion had more important influence than extension in changing the cervical physiological curvature index(CPCI)after double comparisons;There was correlational dependent relation between weight and the cervical physiological curvature index(CPCI)(r=0.573,P＜0.01),when the patient making traction in own body weight 15-20%scopes,the change of the cervical physiological curvature index(CPCI)followed the changing weight;There was inverse correlational relation between the stiff posture operating time before the computer and the change of cervical physiological curvature index(CPCI)(b=-0.384,P＜0.05),when the stiff posture operating time before the computer was longer,the change of CPCI was smaller;There was correlational dependent relation between the treatment course and the CPCI(b=0.126,P＜0.05),when the treatment course was longer,the change of CPCI was bigger.There was inverse correlation between age and the prognosis of CSA(b=-0.147,P＜0.05),when the age was youger,the prognosis of CSA was better;The intermittent traction(P＜0.05)had more important influence than continuous traction(P＞0.05)in prognosis of CSA;There was correlational dependent relation between the change of CPCI and the prognosis(b=0.827,P＜0.01),when the change of CPCI was bigger, the curative effect was better.Conclusions:(1)The morbidity spot of CSA sends much in C3,C4,C5.(2)There was correlational dependent relation between the change of CPCI and the prognosis(3)The middle position and the anteflexion had more important influence than extension in changing the CPCI and the prognosis,the middle position and the flexion 5-10°may take the traction as the period for adaptation use.(4)The intermittent traction had more important influence than continuous tractionin prognosis of CSA.(5)the patient initial period traction with 4-6kg,when achieved the body weight finally 15-20%,there was correlational dependent relation between weight and the prognosis.(6) There was inverse correlation between age and the stiff posture operating time before the computer and the prognosis of CSA.