Digital Flexor Injection eMedicine Procedures

Description: Injection of the flexor tendon in the hand is most commonly performed for the treatment of stenosing tenosynovitis. Stenosing tenosynovitis, also known as trigger finger, involves a size mismatch between a thickened or stenotic first annular (A1) pulley in the hand and the flexor tendon trying to glide through the pulley. As the patient attempts to extend the finger, the flexor tendon catches, causing clunking or locking at the proximal interphalangeal joint of the involved digit. This locking is termed triggering.
Jennifer Moriatis Wolf, MD Updated: Apr 12, 2009