How Does a Concentric Needle Electrode Work to Diagnose Nerve Damage ?

Nerve damage can be a complex puzzle to solve, but the concentric needle electrode provides a vital piece of the solution. When a doctor suspects nerve damage, they use this specialized electrode to perform a test called electromyography (EMG). The electrode is inserted into a muscle, and as the muscle contracts, the electrode records the electrical signals generated by the muscle fibers. In a healthy muscle, these signals have a predictable pattern. However, if a nerve supplying that muscle is damaged, the electrical signals will be abnormal. The concentric design allows for a clear distinction between the signals from a single muscle fiber and the surrounding tissue, enabling doctors to identify specific irregularities. By analyzing these signals, medical professionals can determine the severity and location of the nerve injury, guiding them toward the most effective treatment plan.