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The anterior interosseous nerve is a branch of the median nerve, with a large sensory branch to the wrist bones, which arises just below the elbow. It passes distally, anteriorly along the interosseous membrane and innervates flexor pollicis longus, flexor digitorum profundus to index and middle finger as well as pronator quadratus, and supplies sensory feedback from the wrist bones, i.e. the ...
Sensory loss in the thumbs, index fingers, long fingers, and the radial aspect of the ring fingers. Weakness in forearm pronation and wrist and finger flexion [2] Activities of daily living such as brushing teeth, tying shoes, making phone calls, turning door knobs and writing, may become difficult with a median nerve injury.
Cheiralgia paraesthetica (Wartenberg's syndrome) is a neuropathy of the hand generally caused by compression or trauma to the superficial branch of the radial nerve. [1] [2] The area affected is typically on the back or side of the hand at the base of the thumb, near the anatomical snuffbox, but may extend up the back of the thumb and index finger and across the back of the hand.
The main symptoms are pain in the hand, numbness, and tingling in the thumb, index finger, middle finger, and the thumb side of the ring finger. [1] Symptoms are typically most troublesome at night. [2] Many people sleep with their wrists bent, and the ensuing symptoms may lead to awakening. [7]
With conditions involving nerve damage, specific tests measuring nerve capacity can act as an indication of the deformity's status. [12] Such may include electromyography (EMG) , to assess coordination between nerves and associated hand muscles, as well as nerve biopsies or conduction tests [ 12 ]
If your symptoms persist for a week or two, see your doctor, Gornik suggests. They’ll likely do a physical exam and an ankle-brachial index test, which measures blood pressure in your legs and arms.