摘要
Methods Two patients were treated with division of the C 8 never root. Supraclavicular incision was made to expose the C 5-T 1 nerve roots. The intraoperative electromyographic recording technique was used to monitor the responses from the flexor digitorum and flexor carpi ulnaris muscle groups simultaneously. The C 5-T 1 nerve roots were stimulated and the evoked muscle amplitude potentials (EMAP) were recorded from the muscle groups. The EMAP of the muscle groups obtained during electrical stimulation of the C 8 nerve root was the largest, which was used as the basis for C 8 nerve root division. Results Division of the C 8 nerve root slightly affected the function of the upper limb, and reduced the muscle tone of the flexor wrist and digitorum. Conclusion Division of the C 8 nerve root can reduce the muscle tone of the flexor wrist and digitorum in a short time. The long term effects need to be followed up further.
Methods Two patients were treated with division of the C 8 never root. Supraclavicular incision was made to expose the C 5-T 1 nerve roots. The intraoperative electromyographic recording technique was used to monitor the responses from the flexor digitorum and flexor carpi ulnaris muscle groups simultaneously. The C 5-T 1 nerve roots were stimulated and the evoked muscle amplitude potentials (EMAP) were recorded from the muscle groups. The EMAP of the muscle groups obtained during electrical stimulation of the C 8 nerve root was the largest, which was used as the basis for C 8 nerve root division. Results Division of the C 8 nerve root slightly affected the function of the upper limb, and reduced the muscle tone of the flexor wrist and digitorum. Conclusion Division of the C 8 nerve root can reduce the muscle tone of the flexor wrist and digitorum in a short time. The long term effects need to be followed up further.
