Purpose of Brachial Plexus Compression Test: To determine if applying direct compression to the brachial plexus causes radiating symptoms, suggesting mechanically elicitable cervical spine lesions.

Patient position: Sitting upright or lying supine.

Examiner position: Standing behind while the patient is sitting; Standing on the head side while the patient is lying supine.

Procedure: Apply compression directly on the brachial plexus using the fingers or thumb.

Outcome: The test is positive if pain or other neural symptoms radiate into the upper extremity ipsilaterally. The test is negative if there are no radiating symptoms.

Reference:
1. Uchihara, Toshiki, Tetsuo Furukawa, and Hiroshi Tsukagoshi. “Compression of brachial plexus as a diagnostic test of cervical cord lesion.” Spine 19.19 (1994): 2170-2173.