Overview
Physical trauma, infection, or exposure to toxins, may cause radial nerve injury. Radial nerve palsy refers to a radial nerve injury causing radial neuropathy. This injury can cause numbness and tingling or burning pain or be painless. Those suffering from radial nerve injury may experience weakness or difficulty moving their wrist, hand, or fingers.
About Radial Nerve injury
What is Radial Nerve Injury?
Radial nerve injury refers to damage to the radial nerve, which is located in the upper arm. This nerve controls the triceps muscle and helps extend the wrist and fingers. It also provides sensation in part of the hand. The radial nerve is close to the bone in the upper arm, so it is vulnerable to injury, especially if the arm breaks. There are varying degrees of nerve damage:
Neurapraxia, a first-degree injury, is the least serious classification.
Axonotmesis refers to a second, third, or fourth-degree injury.
Neurotmesis, a fifth-degree injury, is the most severe form of nerve damage.
Injury to the radial nerve can lead to radial nerve palsy. Symptoms of radial nerve injury and resulting palsy include pain, weakness in the wrist, hand, or fingers, and loss of function in the wrist, hand, or fingers.
The most common causes of radial nerve damage are breaking your arm, overusing your arm, and sports and work accidents. Depending on the level of injury, you may experience a complete laceration of the radial nerve. This occurs when the nerve is severed. It can cause symptoms that are similar to minor injuries. A nerve laceration usually requires surgical repair. As the radial nerve moves back and forth over the bones of your wrist and forearm, there’s potential for the nerve to become trapped, pinched, or strained from these activities.
Fracturing the humerus (a bone in the upper arm)
Sleeping with the upper arm in an awkward position
Pressure from leaning the arm over the back of a chair
Using crutches improperly
Falling on or receiving a blow to the arm
Long-term constriction of the wrist
What are the Symptoms of Radial Nerve Injury?
Radial nerve injury, also known as radial nerve palsy, is a condition that results from damage to the radial nerve in the upper arm. The radial nerve controls the triceps muscle, helps extend the wrist and fingers, and provides sensation in part of the hand. When this nerve is damaged, it can lead to a variety of symptoms. The most common symptoms of radial nerve injury include: