Not all hand numbness is carpal tunnel. Thoracic outlet syndrome is one of the most frequently missed diagnoses in upper extremity medicine — overlapping with carpal tunnel, cervical disc disease, and rotator cuff pathology. The pectoralis minor connection and the self-test you can do right now.

Phalen's test — the classic prayer-hands maneuver — has a false negative rate of roughly 25%. Durkan's compression test cuts that number significantly. Here's the technique, what a positive test means, and why this is the test I rely on in the clinic.

The four-stage progression of ulnar nerve compression at the elbow — and when the window for conservative treatment starts closing. Includes the Finkelstein test and a stage-by-stage breakdown of what symptoms mean at each point.