Journal of the Korean Association of EMG-electrodiagnostic Medicine (대한근전도 전기진단의학회지), Vol.3(2) : 64~68, 2001
Journal of the Korean Association of EMG-electrodiagnostic Medicine (대한근전도 전기진단의학회지)
Objectives: To determine the optimal electromyographic screening examination of the upper limb that ensures detection of those cervical radiculopathies, which can be electrodiagnostically confirmed, yet minimize the number of muscles studies.
Methods: We analyzed the electrodiagnostic data of 104 patients who were diagnosed cervical radiculopathy at the department of Rehabilitation Medicine of Yongdong Severance hospital. The Electrodiagnostic data of each patients was reconstructed by three muscle group, four muscle group, five muscle group which were including all nerve roots of C5 T1 levels. Identification of screening test was defined as abnormal spontaneous activities were recorded in muscle group. We compare the identification ratio of each muscle group of screening test.
Results: Identification ratios of three muscle group, four muscle group, and five muscle group were 97.1% to 98.7%, 96.1% to 100%, and 98.0% to 100% respectively. Identification ratio of four and five muscle group showed marginal increases of comparing to those of three muscle group.
Conclusion: This study demonstrated that three muscle screening test including C5 to T1 root level is sufficient to identify cervical radiculopathy. This will save examiners' time and reduce patients' discomfort.