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For those at the University of Maryland that got the chance to hear my lecture this week, you learned about Cubital tunnel syndrome [ulnar neuropathy], the second most common compressive neuropathy. Carpal Tunnel syndrome remains the number one compressive neuropathy, and this pearl, for the sake of completeness, will address Radial tunnel syndrome.
- Believed to be due to overuse, frequently due to excessive elbow extension or forearm rotation.
- May actually just be an early stage of posterior interosseous nerve syndrome.
- Due to compression of the radial nerve as it passes a fibrous band that is attached to the radiocapitellar joint, and the tendinous origins of two muscles, extersor carpi radialis brevis and the supinator.
- Patients typically have l pain along the anteriolateral forearm.
- Pain is increased by extending the elbow and pronating the forearm.
- This syndrome is associated mostly with pain
- Weakness and numbness are not often seen.
Stay tuned for next week for Posterior Interosseous Nerve syndrome.