Radial nerve - cheiralgia paresthetica

Causes

Lesion to superficial cutaneous branch of radial nerve.

• Injury anywhere in the forearm along the nerve’s course.
• Entrapment between the tendons of brachioradialis and extensor carpi radialis muscles.

Symptoms & signs

• Sensory deficit and paresthesia in the radial part of the dorsum of the hand and dorsal aspect of the first 3 fingers and radial half of 4th finger.
• Pain that might be exacerbated by pinching and gripping.
• Positive Tinnel sign may be seen with percussion over the nerve.