RESUMO
Objective To compare the effect of pulling and rotating manipulation in different cervical postures on intradiscal pressure of the cervical spinal cord.Methods Quantitative simulation of pulling and rotating manipulation was performed on 6 fresh corpse cervical samples by Mechanical Testing & Simulation(MTS) system in different cervical postures of 20 degrees of anteflexion,neutral position,and 20 degrees of posterior extension,and the changes of intramedullary pressure of intervertebral C3/4,C4/5 and C6/7 were measured.Results The intradiscal pressure of intervertebral C3/4 and C4/5 in the posture of 20 degrees of posterior extension at the end of pulling manipulation by 200N and when the posture returned to the primary after pulling and rotating manipulation was less than that in the posture of 20 degrees of anteflexion(P