Hypertrophic stenosating tenosynovitis, also called "trigger finger", is a tendonitis of the flexor tendons that produces impairment in flexion of one or more digital segments. This condition is characterized by the typical "click" during flexion and subsequent inability or difficulty to extend the digit. The symptoms can be extremely disabling even during daily activities.

This condition is caused by inflammation and segmental swelling of the flexor tendons. This swelling impairs the tendon slip inside a fibrous pulley at the base of the finger producing a severe limitation in flexion (and extension). The patient could not be able to actively extend the digit once the tendon swelling passes the pulley (producing the pathognomonic “click”).


The procedure


This procedure is performed under local anaesthesia. An incision of 15 mm is performed at the base of the finger. The A1 pulley is opened, allowing a free sliding of tendon. The duration of surgery is 10 minutes and it is performed as an outpatient procedure.




Daily activities can be gradually resumed after 2 weeks. Sports and heavy manual activities could be started from 3-4 weeks after the procedure.