Upper Limb Blocks
Radial Nerve Block
What is radial nerve and why do I need a radial nerve block?
The radial nerve is a nerve that supplies the back portion of the upper limb. It supplies triceps muscle in the arm, as well as all 12 muscles in the posterior compartment of the forearm and the associated joints and overlying skin. Radial nerve block is indicated in radial nerve entrapment neuropathy or radial tunnel syndrome. Radial tunnel syndrome is a set of symptoms that include fatigue or a dull, aching pain at the top of the forearm with use. Although less common, symptoms can also occur at the back of the hand or wrist. The symptoms are caused by pressure on the radial nerve, usually at the elbow.
How does a radial nerve block helps?
Radial nerve block is done with local anesthetic and steroid. Local anesthetic will reduce the pain due to pressure on the radial nerve whereas steroid will help relieve the inflammation and pressure on the radial nerve. Radial nerve block is done under ultrasound guidance on a day care basis. When the effects of the nerve block is good, but lasts for a short while only, pulsed radiofrequency of the nerve is done, where it is stunned gently with electric currents to provide long-lasting relief.
Ulnar Nerve Block
What is ulnar nerve and why do I need ulnar nerve block?
Ulnar nerve is one of the three major nerves in the upper limb. The ulnar nerve transmits sensation and motor function to your lower arm and hand. If this nerve is compressed as it passes through the elbow or wrist, the result is pain, weakness or tingling in this area. Ulnar nerve entrapment is also known as bicycler’s neuropathy or Cubital tunnel syndrome.
How is ulnar nerve block performed?
Ulnar nerve block is done with local anaesthetic and steroid. Local anaesthetic will reduce the pain due to pressure on the ulnar nerve whereas steroid will help relieve the inflammation and pressure on the ulnar nerve. Ulnar nerve block is done under ultrasound guidance on a day care basis. When the effects of the nerve block is good, but lasts for a short while only, pulsed radiofrequency of the nerve is done, where it is stunned gently with electric currents to provide long-lasting relief.
What are the complications/risks with radial and ulnar nerve block?
Numbness in the distribution of radial or ulnar nerve and weakness are the most common side effects, which would wear off in a few hours. Other complications like nerve injury are rare as the block is done under ultrasound guidance.
Please read our FAQ section to know more about the do's and don'ts prior to and after the procedure.