Signs and Symptoms
Patients with CTS experience numbness, tingling, or burning sensations in the thumb and fingers, in particular the index, middle fingers, and radial half of the ring fingers, which are innervated by the median nerve. Less-specific symptoms may include pain in the wrists or hands and loss of grip strength (both of which are more characteristic of painful conditions such as arthritis).
Some posit that median nerve symptoms can arise from compression at the level of the thoracic outlet or the area where the median nerve passes between the two heads of the pronator teres in the forearm, but this is highly debatable. This line of thinking is an attempt to explain pain and other symptoms not characteristic of carpal tunnel syndrome. Carpal tunnel syndrome is a common diagnosis with an objective, reliable, verifiable pathophysiology, whereas thoracic outlet syndrome and pronator syndrome are defined by a lack of verifiable pathophysiology and are usually applied in the context of nonspecific upper extremity pain.
Numbness and paresthesias in the median nerve distribution are the hallmark neuropathic symptoms (NS) of carpal tunnel entrapment syndrome. Weakness and atrophy of the thenar muscles may occur if the condition remains untreated.
Read more about this topic: Carpal Tunnel Syndrome
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