A 64-year-old @entity1 experienced @entity1183 and @entity1183 of the right C6 dermatome a year ago. Enhanced magnetic resonance imaging of the cervical spine revealed an enhanced @entity5 continuing into the foramen from the spinal cord at the C5/6 intervertebral level. It was thought to be an Eden type 2 @entity808 . Right unilateral laminectomy was performed on C5. The @entity5 was present in the intradural area and arose from the right C6 anterior root. Compound muscle action potentials (CMAPs) from the deltoid, biceps, and extensor carpi radial (ECR) muscles were recorded following electric cervical nerve root stimulation (0.2 ms duration, and 7 mA intensity). CMAPs of large amplitude were obtained from the deltoid, biceps, and ECR muscles following C5 root stimulation, but those following C6 root stimulation were small. As a result it was determined that the right C6 root was not associated with the nerve distribution for these muscles, so it was resected en bloc with the @entity5 . No apparent loss of motor function was observed. Standard needle electromyography showed no denervation potentials or decrease in motor unit potentials in either the deltoid or biceps muscles. Intraoperative investigation for compensation of nerve root is clinically useful for determining whether resection of a nerve root results in @entity425 after surgery for a cervical @entity808 .

Measuring of the compensation of a nerve root in a cervical XXXX : a case report.

@entity1 :: ('9606', 'Species') :: ['woman'] @entity808 :: ('MESH:D009442', 'Disease') :: ['schwannoma'] @entity1183 :: ('MESH:D006987', 'Disease') :: ['numbness', 'hypesthesia'] @entity5 :: ('MESH:D009369', 'Disease') :: ['tumor'] @entity425 :: ('MESH:D018908', 'Disease') :: ['muscle weakness']
@entity808 :: (MESH:D009442,Disease) :: ['schwannoma']
