The brachial plexus is a network of nerves branching off the cervical nerve roots exiting the neck and extending through the shoulder region. These nerves are responsible for the muscular function and sensation in the shoulder, arm, and hand. Parsonage-Turner Syndrome (PTS) is a rare condition that affects these nerves and causes sudden pain and weakness in the muscles of the arm controlled by the brachial plexus.
Frequent Signs and Symptoms
- Sharp pain in the shoulder and upper arm
- Numbness or tingling in the arm and/or hand
- Loss of power in the shoulder/difficulty raising the arm above shoulder level
- Paralysis of the shoulder and arm (in advanced cases)
- Atrophy of the shoulder and arm muscles
Etiology (Causes)
- Unknown etiology
Risk Factors
- Recent surgery or trauma
- Recent infection
- Post-vaccination
Outcomes
Typically, patients experience spontaneous resolution of symptoms, although it may take several years for older patients. Children tend to experience spontaneous resolution more rapidly than adults.
Potential Complications
- Permanent weakness of the shoulder
- Persistent pain in the shoulder
- Inability to compete at previous level