OBJECTIVE: To determine the sensitivity and specificity of MRI and electrodiagnostic studies in diagnosing ' clinically positive cervical radiculopathy'.īACKGROUND: Cervical radiculopathy (CR) can be caused by structural or non structural abnormalities.MRI cervical spine (MRIC) can detect structural causes and EMG/NCS (EDX) can detect CR in the presence of a normal imaging study although limited by the timing of the study and the number of muscles sampled.ĭESIGN/METHODS: This is a retrospective chart review of all consecutive patients (2007-2009,age>18) referred to the EMG lab for the evaluation of CR and who had MRIC.The patients had to have at least 4 of the following for at least 3 weeks to have ' clinically positive CR': muscle spasm,weakness, paresthesias/numbness,positive Spurling test,and depressed reflexes.EDX was done between 4 weeks and 18 months from symptom onset.Chi square analysis was used to assess the significance of the association between clinically positive CR,MRI positive CR,and EDX positive CR and the sensitivity/specificity of MRIC and EDX in diagnosing the clinically positive CR was calculated.
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