Axillary nerve injury symptoms

Recently, Xiaoli always felt that her axillary nerve was damaged. The reason was that she thought she had fallen accidentally and always felt pain in her armpit. In fact, axillary nerve damage is a functional disorder, such as nutritional disorder, movement disorder, and sensory disorder. So what kind of impact will axillary nerve damage have on the human body? What are the symptoms of axillary nerve injury? This article will take you to understand axillary nerve injury.

Brachial plexus injury: mainly manifested as motor and sensory disorders with nerve root distribution. Injury to the upper part of the brachial plexus is manifested by drooping of the entire upper limb, adduction of the upper arm, inability to abduct or externally rotate, adduction and extension of the forearm, inability to pronate, supinate or flex, and a narrow area of ​​sensory impairment on the outside of the scapula, upper arm and forearm. Injury to the lower brachial plexus is manifested by atrophy of the small muscles of the hand, which become claw-shaped, loss of sensation on the ulnar side of the hand and medial forearm, and sometimes Horner's syndrome.

Musculocutaneous nerve injury: After the musculocutaneous nerve emerges from the lateral bundle, it obliquely passes through the coracobrachialis muscle, descends between the biceps brachii and the brachialis muscle, and sends out branches to innervate the above three muscles. The terminal branch is on the outside slightly above the elbow joint, passes through the deep fascia of the arm, and is renamed the lateral antebrachial cutaneous nerve, which is distributed in the skin on the outside of the forearm. Sensory disturbance of the skin of the biceps, brachialis, and lateral forearm after injury to the musculocutaneous nerve.

Peripheral nerve damage is mainly caused by trauma, birth trauma, bone abnormalities, lead and alcohol poisoning, etc., which cause sensory disorders, movement disorders and nutritional disorders in the areas innervated by the nerves. Peripheral nerves are nerves other than the central nervous system.

There are many peripheral nerves, including: brachial plexus injury: axillary nerve injury, musculocutaneous nerve injury, median nerve injury, radial nerve injury, ulnar nerve injury: femoral nerve injury, sciatic nerve injury, common peroneal nerve injury, etc. The symptoms are different and the treatment methods are also different.