EMG

Electromyography (EMG)

EMG tests the function of an isolated nerve supplying a specific muscle, by recording directly from that muscle. There is no external stimulation, but here a fine very thin needle is inserted into the muscle and the patient is asked to contract and relax that muscle, in that way self-controlling the respected nerve function. As it relies on the patient’s participation, it cannot be performed under anaesthesia. EMG is used in the diagnosis of nerve-root compressions, muscle diseases and in assessing the severity of a nerve injury or disease in the acute or chronic stages. Typical symptoms requiring EMG include muscle weakness, wasting or abnormal muscle twitches This study can be uncomfortable and may result in minor bruising and tenderness afterwards. If performed, EMG is always performed after NCS and never in isolation

Electromyography (EMG)