Ape Hand Deformity is primarily associated with damage to which nerve?

Ape Hand Deformity is primarily linked with damage to the median nerve. This condition arises when the median nerve, which plays a crucial role in the function and movement of the muscles controlling the thumb and certain fingers, is injured or affected. As a result of this nerve damage, especially in the forearm or wrist, there is an inability to fully oppose the thumb, leading to the characteristic appearance of the hand, where the thumb is adducted and the fingers may appear claw-like or flat. This affects the hand's grip and dexterity, making it difficult for individuals to perform tasks that require fine motor skills. The median nerve innervates the muscles that are responsible for opposition of the thumb and flexion of the index and middle fingers, so its impairment can result in significant functional limitations.