Headache occurs in about 25% of the cases after the procedure and the incidence is more frequent in females. 5% of those who undergone the procedure may experience nausea and vomiting. There is also a risk of contrast medium being injected into the subdural space when part of the bevel of the needle is in the subarachnoid space and another part is in the subdural space. The contrast medium would flow freely in the subdural space, mimicking the flow as if it was in the subarachnoid space. If there is doubt that the needle is in the subdural space, AP and lateral views of the radiograph should be taken and the subject is to be rebook for another date for the same procedure.
Myelography
Magnetic resonance myelography
Spinal fMRI
Cervicography
Nerve biopsy
Neuroimaging
Electromyography
Lumbar provocative discography