Pronator Teres Syndrome
Pronator Teres Syndrome is a compression of the median nerve as it passes through the two heads of the pronator teres muscle at the elbow. It is less common than Carpal Tunnel Syndrome (compression of the median nerve at the wrist) and presents differently. Compression of the median nerve at the elbow results in numbness, pins and needles and pain on the volar (palm) side of the forearm. Pronator Teres Syndrome is typically due to hypertrophy (increased size) of the pronator teres muscle and generally develops following repetitive pronation (internal rotation) of the forearm and repetitive inward bending of the wrist.