The Study Of The Dependablity Of C6 Radiculopathy Or C7 Radiculopathy By The Examination Of The H-reflex Of Flexor Cardi Radialis

ObjectiveH-reflex plays an important role in the estimation of radiculopathy, but its utility limits in lower limb,rarely in upper limb.After using needle electrode,the probability of finding the H-reflex of flexor cardi radialis(FCR) raised a lot.FCR is dominated by C₆ and C₇ nerve root. Through studying the probability of the abnormalities of the H-reflex of FCR in the patients of C₆ radiculopathy or C₇ radiculopathy,discuss the H-reflex of FCR is more relative to C₆ radiculopathy or C₇ radiculopathy.MethodsThe patients who have no other peripheral neuropathy by examed ordinary EMG and diagnosis with asymmetry C₆ radiculopathy or C₇ radiculopathy have been checked by the H-reflex of FCR.A R/L difference of the reflex latencies of 1.2 msec pr more and a failure to record the reflex ar definded as abnormal.ResultsIn 11 C₆ radiculopathy subjects,8 males and 3 females,the ages of 44 to 65(mean 56 years),in 10 The C₇ radiculopathy subjects,6 males and 4 females,the ages of 17 to 61(mean 43 years) were studied. Examination yielded abnormalities in 52.4%of 21 patients who have asymmetry C₆ radiculopathy or C₇ radiculopathy,in 90.9%of 7 patients who diagnosis with asymmetry C₆ radiculopathy,and only one is found in the patients who diagnosis with asymmetry C₇ radiculopathy.ConclusionsIt indicates that the FCR H-reflex examination may be relative to the diagnosis of C₆ radiculopathy.