Trigger Finger Release Procedure

An overview of how open trigger finger release is performed under local anaesthetic.

What the operation does

The aim is to release the tight A1 pulley so the flexor tendon has more room to glide freely. The nearby A2 pulley is preserved and the digital nerves and blood vessels beside the tendon sheath are protected.

Typical steps

1. The operative area is numbed with local anaesthetic while you remain awake.
2. A small incision is made over the affected finger or thumb in the palm.
3. Blunt dissection is used to reach the flexor sheath while protecting nearby structures.
4. The A1 pulley is released sufficiently to allow the tendon to glide freely, while preserving the A2 pulley.
5. Movement is checked, the wound is washed, the skin is closed and a dressing is applied.
6. You normally go home the same day with aftercare advice.