Which condition is characterized by paralysis of the arm due to injury at the C5-C6 level?

Erb's Duchenne Palsy is characterized by paralysis of the arm that occurs as a result of an injury to the brachial plexus at the C5-C6 spinal nerve roots. This condition typically arises during birth when excessive lateral traction is applied to the head while the shoulders are passing through the birth canal, leading to damage to the nerves that control movement and sensation in the arm and shoulder.

Individuals with Erb's Duchenne Palsy often exhibit a distinct posture called the "waiter's tip" position, where the arm is adducted and extended at the elbow, with the hand usually facing downwards. This specific presentation is directly linked to the injury at the C5-C6 level, which affects muscles innervated by these nerve roots, such as the deltoid and biceps.

The other conditions listed do not specifically involve paralysis at the C5-C6 level or are not related to brachial plexus injuries. For example, Bell's Palsy affects the facial nerve resulting in partial facial paralysis, carpal tunnel syndrome involves compression of the median nerve in the wrist leading to numbness and tingling, and thoracic outlet syndrome pertains to neurovascular compression in the space between the collarbone and the first