What is the purpose of the Tinel's sign?

The purpose of Tinel's sign is to evaluate nerve compression. This test helps identify the presence of neuropathy by detecting tingling or a "pins and needles" sensation when tapping over a nerve, most commonly the ulnar nerve at the elbow or the median nerve at the wrist. A positive Tinel's sign suggests that there is an issue with the nerve, such as entrapment or damage, which may indicate conditions like carpal tunnel syndrome or ulnar nerve entrapment.

Recognizing the significance of Tinel's sign is crucial in clinical practice, as it allows healthcare providers to determine the need for further diagnostic evaluations or interventions related to nerve injuries or compressive syndromes. This specific focus helps to streamline the diagnostic process and inform treatment decisions.