Electromyography (EMG) and nerve conduction studies (NCS) are diagnostic tests to help your orthopedic doctor determine how well your muscles and nerves work and to diagnose orthopedic and neurologic issues. NCS identifies issues within the nerve, while an EMG assesses whether the muscle responds appropriately to the signals from the nerve. These tests are often performed at the same time and are valuable diagnostic tools that can help determine location and severity of injury based on the findings.

What is Electromyography (EMG)?

Electromyography (EMG) is a test that helps doctors understand how muscles work. It involves using small sensors called electrodes to listen to the electrical signals that muscles make when they move. EMGs help doctors diagnose neuromuscular disease, neurological disorders, muscle disease, and nerve abnormalities associated with pain or numbness.    

What is Nerve Conduction Study (NCS)?

A nerve conduction study (NCS) helps diagnose conditions affecting nerves, such as peripheral neuropathy, carpal tunnel syndrome, and more. An accurate diagnosis is the first step in a patient’s treatment plan.