A member asked:

Herniated c4-c7: emg normal no carpal tunnel or cerv. rad. what else can be causing loss of sensation in middle finger tip??

A doctor has provided 1 answer
Dr. Galina Nikolskaya answered

Specializes in Neurology

Sensory C7 radic: if you have purely sensory C7 radiculopathy aka only the sensory portion of the C7 nerve root is being pinched by a herniated disk, this will cause numbness in middle finger and EMG and nerve conduction testing in such a case will be completely normal. Sensory radiculopathy can cause pain/numbness/tingling, without weakness. Motor radiculopathies show EMG abnormalities; sensory ones usually do not

Answered 9/10/2017

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