There are many nerves that run between the shoulder and the fingertips in the area of the body known as the upper extremity. These nerves are responsible for carrying messages from the brain to parts along the arm for movement, feeling and reflexes. The nerves in the upper extremity leave the central nervous system through several areas in the neck, and form a complex structure called the brachial plexus. The nerves are larger in diameter near the neck, and eventually divide to form smaller branches in the upper arm, forearm and hand.
Injuries to the upper extremity occasionally cause trauma to nerves, which can interfere with the various functions of the arm and hand. Occasionally, the nerve is bruised, and may heal on its own in time. However, if a nerve is cut or crushed, it may need surgical treatment in order to help improve or restore function to the hand or arm. Sometimes, certain illnesses can affect nerves and cause similar symptoms in the upper extremity.
The University of Michigan is a leading provider in the treatment of nerve injuries, from simple to complex. Our fellowship trained hand and upper extremity surgeons specialize in hand, wrist, and elbow surgery. Our goal is to relieve symptoms of the nerve injury and perform nerve reconstruction as soon as possible with minimal impact on the patient’s quality of life.
Symptoms of Nerve Injuries of the Hand, Wrist and Elbow
Symptoms generally occur following an injury to the neck, shoulder, arm or hand. Sometimes, symptoms may occur after something as simple as laying on the arm for too long. Other injuries may occur after a crush or sharp cut along any part of the nerve. Common symptoms of nerve injury include:
- Loss of sensation in the upper arm, forearm, and/or hand. Each nerve supplies different areas of sensation in the upper extremity. The pattern of numbness can help guide the surgeon to the specific injured nerve(s).
- Loss of function in the upper arm, forearm, and/or hand. The muscles in the upper extremity are supplied by different nerves. The muscles that do not function properly help guide the surgeon to the specific injured nerve(s).
- Wrist drop or inability to extend the wrist
- Decreased muscle tone in the upper arm, forearm, and/or hand
- Changes in sweating patterns of the upper arm, forearm, and/or hand
Diagnosing Nerve Injuries of the Hand, Wrist and Elbow
Depending on the complexity of the condition, patients may visit with more than one physician, surgeon, therapist or physician assistant. Consultations usually last 1-2 hours. During this important visit, patients should expect to:
- Undergo a physical examination and provide a complete medical history, including information about previous surgical procedures, past and present medical conditions, and any current medications or herbal supplements.
- Discuss possible options for treatment of the condition, including whether surgery is recommended. If surgery is recommended, patients will discuss the surgical procedure in detail, including the possible risks and complications of the procedure, recovery and rehabilitation period, and the probable outcome in terms of function and appearance.
In addition to an initial consultation appointment, additional diagnostic tests may be ordered. These include:
- Electrodiagnostic nerve studies (EMG)
- X-ray: Images used to determine if fractures are present
- CT Scan, MRI, or ultrasound (US) for more detailed imaging
Treatment for Nerve Injuries of the Hand, Wrist and Elbow
We offer the latest treatment options available for patients with nerve injuries. Surgical treatment is decided on a case-by-case basis, and depends on the location, duration, and type of nerve injury.
Surgery. The goal of surgery is to improve function of the affected area in the upper extremity.
If the nerve is thought to be repairable, surgical treatment may consist of:
- Nerve decompression
- Nerve repair
- Nerve graft
If nerve repair is not an option, a tendon transfer may be recommended. Tendon transfers borrow extra tendons from other parts of the hand or forearm to perform a function that is lost due to the nerve injury. The tendon chosen so the patient does not have loss of function with use of the donor tendon.
Hand Therapy and Rehabilitation
Hand therapy is provided on site at the University of Michigan’s Hand Program by our team of occupational and physical therapists under the direction of a trained hand therapist. Referrals to local providers can be arranged closer to home as a more convenient option for patients.
The ultimate goal of therapy and rehabilitation is the restoration and optimization of hand function, renewed independence and improved overall quality of life. We offer treatment plans that are tailored to fit each patient’s condition, living and work requirements:
- Non-surgical option: For patients who do not require surgery but would benefit from therapy.
- Post-operative rehabilitation: To help patients as they recover from surgical procedures.
Contact Us / Make an Appointment
If you are considering treatment for nerve injuries of the hand, wrist or elbow, the University of Michigan hand surgeons will guide you, from consultation to recovery, to the best procedures for your individual needs. Our hand surgeons have dual appointments in Orthopaedic and Plastic Surgery with a specialization in hand surgery. Patients may be seen in the Orthopaedic Clinic or the Plastic Surgery clinic for treatment of hand conditions.
- Orthopaedic Call Center, 734-936-5780
- Plastic Surgery Hand Call Center, 734-998-6022
Michigan Medicine Comprehensive Hand Center
Our team of specialists at the Comprehensive Hand Center is dedicated to providing comprehensive care for a variety of hand problems. From arthritis injuries, to congenital hand conditions, to the most complex reconstruction, our hand specialists approach each case individually, with a specific plan designed to maximize the restoration of both form and function. Depending on the types of hand conditions our patients face, our physicians will help determine the best therapies or procedures to maximize hand functionality and normal hand appearances. Visit the Comprehensive Hand Center page to learn more about the program and to contact our hand specialists.