What is radial tunnel syndrome?
Radial tunnel syndrome is an entrapment of the posterior interosseous branch of the radial nerve at the proximal forearm.
This may be due to an aberrant fibrous band, sharp tendinous margin, or a blood vessel.
Symptoms include pain in the proximal and lateral forearm similar to tennis elbow.
In fact, it is often mistaken for tennis elbow. It is a rare syndrome, and although tennis elbow is so common, radial tunnel syndrome should still be added to the differential diagnosis.
Treatment is similar to the other entrapment syndromes.