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H-Reflex Study In Patients With C7 Radiculopathy, Sau-Chin Mei, I-Ping Liu, Rai-Chi Chan, Tao-Chang Hsu

Rehabilitation Practice and Science

H-reflexes of the flexor carpi radialis muscle were studied in 60 controls and 42 patients with C7 radiculopathy. Reflex parameters were compared to normal standards and correlated with clinical evaluations, radiologic and other electrophysiologic findings. The surface recording technique used was similar to that described in the previous report for the study of normal subjects.The present data reveled: 1) Patients with C7 radiculopathy showed an abnormally prolonged latency of the FCR H-reflex. It increased from an average of 16.8±1.9 msec in normal subjects to 22.4±1.7 msec, p＜0.05. 2) The peak-to-peak amplitude of the H-reflex was significantly decreased from a normal …