제 1천추 신경근 병증 환자에서 H 반사와 침근전도 소견
H Reflex and It´s Relation to the Findings of Needle Electromyography in S1 Radiculopathy
채수한, 권희규, 윤대원, 이항재,
소속 상세정보
채수한 ( Chae Su-Han )
고려대학교 의과대학 재활의학교실
권희규 ( Kwon Hee-Kyu )
고려대학교 의과대학 재활의학교실
윤대원 ( Yoon Dae-Won )
고려대학교 의과대학 재활의학교실
이항재 ( Lee Hang-Jae )
고려대학교 의과대학 재활의학교실
KMID : 0860920040060020156
Abstract
Objective:0 To evaluate the relation between H reflex and findings of needle electromyography in
patients with S1 radiculopathy.
Method: Electrophysiologic data of 41 patients (male 23, female 18, average age 53±17.2) who had
been diagnosed as S1 radiculopathy were obtained. The S1 radiculopathy was confirmed by H reflex and
needle electromyography study. The H reflex findings were classified into 3 groups: absent, delayed, normal.
Needle electromyography findings were classified into 3 groups: normal; type 1 abnormality, abnormal
spontaneous activities and abnormal motor unit potentials; type 2 abnormality, abnormal motor unit
potentials only. The Mann-Whitney U test was used for statistical analysis.
Results: Out of 41 patients with S1 radiculopathy, H reflex was unobtainable in 20 patients, of delayed
latency in 7 patients and of normal findings in 14 patients. Type 1, 2 abnormalities and normal needle
electromyography findings were shown in 7, 12, 1 cases in 20 patients with absent H reflex, respectively,
and 2, 3, 2 cases in 7 patients with delayed H reflex, respectively. Even in 14 patients with normal H
reflex, 7 patients showed type 1 abnormality and 7 patients showed type 2 abnormality. Based on the
results, there is no relation between H reflex and needle electromyography. (p>0.05)
Conclusion: Abnormal H reflex is not always present in S1 radiculopathy. Abnormality of H reflex
might be related to the involvement of motor or sensory root according to the degree or direction of herniated
nucleus pulposus.
키워드
S1 radiculopathy;H reflex;Needle electromyography
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