All about trigger finger surgery

Trigger finger, also known as stenosing tenosynovitis, is a condition where a finger or thumb catches, locks, or becomes painful when bending or straightening. It occurs when the tendon that helps move the finger becomes irritated or thickened, making it difficult for the tendon to glide smoothly through its surrounding sheath. When symptoms persist despite non-surgical treatment, surgery may be recommended to restore normal movement and relieve pain.

Why trigger finger develops

Trigger finger develops due to inflammation and narrowing of the tendon sheath in the palm. This causes resistance as the tendon moves, leading to the characteristic clicking or locking sensation. The condition is more common in people with diabetes, rheumatoid arthritis, or those who perform repetitive gripping tasks, although it can also occur without a clear cause.

Symptoms often start gradually and may worsen over time, progressing from stiffness and discomfort to painful locking that interferes with everyday activities.

When is surgery recommended?

Surgery is usually considered when symptoms do not improve with rest, splinting, or steroid injections, or when the finger becomes persistently locked. Delaying surgery in more severe cases can lead to prolonged stiffness and reduced finger movement.

A specialist will assess the severity of symptoms, finger movement, and how much the condition is affecting daily life before recommending surgery.

What happens during trigger finger surgery?

Trigger finger surgery aims to release the tight portion of the tendon sheath that is preventing smooth tendon movement. The procedure is typically performed under local anaesthetic. A small incision is made in the palm at the base of the affected finger, allowing the surgeon to access and release the constricted sheath.

Once released, the tendon can move freely again, allowing the finger to straighten and bend without catching. The incision is then closed, and a dressing is applied.

Recovery and results

Most patients notice immediate improvement in finger movement following surgery, although soreness and swelling around the incision are common in the early recovery period. Hand use is encouraged soon after surgery, with gradual return to normal activities over the following weeks.

Typically, patients can expect the following:

mild pain and swelling for a short period
gradual improvement in grip strength and finger movement
stitches removed or absorbed within one to two weeks
full recovery usually within a few weeks

Hand exercises may be recommended to reduce stiffness and support recovery.

Risks and long-term outlook

Trigger finger surgery is highly effective, with most patients achieving lasting relief. Complications are uncommon but may include infection, stiffness, or tenderness around the scar. Recurrence is rare once the tendon sheath has been fully released.

For people whose trigger finger significantly affects comfort or hand function, surgery offers a reliable and long-term solution, helping restore smooth movement and reduce pain.