AXILLARY NERVE PALSY Meaning and
Definition
-
Axillary nerve palsy is a medical condition characterized by the dysfunction or damage to the axillary nerve, a major nerve in the upper limb that originates from the brachial plexus. The axillary nerve supplies motor function to the deltoid muscle and sensory function to the skin over the shoulder joint. When the axillary nerve is affected, it can lead to weakness or paralysis of the deltoid muscle and loss of sensation in the shoulder region.
The most common cause of axillary nerve palsy is injury or trauma, such as a direct blow to the shoulder or prolonged pressure on the nerve. Other causes may include shoulder dislocation, fractures of the upper arm or shoulder, or surgical procedures in the shoulder region. Symptoms of axillary nerve palsy may include difficulty in raising the arm, weakness or inability to abduct the shoulder, and numbness or tingling sensation in the shoulder or upper arm.
Diagnosis of axillary nerve palsy involves a thorough physical examination to assess muscle strength, reflexes, and sensation in the affected area. Imaging tests such as X-rays or magnetic resonance imaging (MRI) may be utilized to identify any structural abnormalities or nerve damage.
Treatment for axillary nerve palsy typically involves a combination of conservative measures and physical therapy. Conservative treatment options may include pain management, immobilization with a sling, and activity modification. Physical therapy aims to restore normal function and strength of the deltoid muscle through specific exercises and rehabilitation techniques. In severe cases or if conservative measures fail, surgery may be considered to repair or reconstruct the damaged nerve.
