ISSN: 1859 - 2872
The correlation between clinical characteristics and H reflex in sciatica patients due to lumbar disc herniation
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Abstract
Summary
Objective: To investigate the correlation between clinical characteristics, herniated types and H reflex in sciatica patients. Subject and method: A cross-sectional study at the Department of Neurology and Neurosurgery, 175 Military Hospital from December 2018 to May 2019. Result: 63% of the studied population had H reflex abnormality; the percentage of abnormality in one-sided pain group was 65.5% and in bilateral pain group was 58.8%. Differences in latency, amplitude and H/M ratio of H reflex when comparing two legs in both bilateral and one-sided pain were not statistically significant. The correlation between H reflex and clinical characteristics was higher and statistically significant in the bilateral pain group. The correlation between H reflex with abnormal sensory was low (0.232) but higher with ankle reflex (0.491) and Lasègue sign (0.537) (p<0.05). The correlation between H reflex and two clinical characteristics was tighter with correlation coefficient ranging from 0.528 to 0.648 (p<0.05). The correlation between H reflex and abnormalities of all three clinical characteristics including sensation, ankle reflex and Lasègue sign was the most correlated with 0.653 (p<0.05). Conclusion: H reflex abnormalities were seen nearly two-thirds of patients in this study. The correlation between H-reflex abnormalities with at least two of three clinical characteristics including Lasègue sign, ankle reflex and sensation was higher with regard to each factor.
Keywords: H reflex, sciatica, lumbar disc herniation.
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References
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