What condition is characterized by numbness, pain, and tingling due to arm positioning?

The condition that is characterized by symptoms such as numbness, pain, and tingling due to arm positioning is Pronator syndrome. This condition occurs when the median nerve is compressed by the pronator teres muscle, particularly when the arm is held in specific positions for extended periods. Activities that involve repetitive pronation of the forearm or sustained elbow flexion can exacerbate the compression of the nerve. This can lead to the classic symptoms of numbness and tingling in the hand, particularly in the areas supplied by the median nerve, as well as pain in the forearm.

Other conditions listed may have overlapping symptoms but differ in their specific mechanisms and affected nerves. For instance, tenosynovitis involves inflammation of the tendon sheaths and is typically associated with pain and swelling rather than distinct tingling and numbness linked specifically to arm positioning. Extensor wad strain pertains to the muscles that extend the wrist and fingers, generally resulting in pain in the posterior forearm rather than the numbness characteristic of median nerve involvement. Ulnar nerve entrapment often manifests as symptoms in the ring and little fingers and is usually related to cubital tunnel syndrome, which does not specifically correlate with symptoms arising from arm positioning in the same way as Pronator