Patient Information Leaflet : Trigger Finger Release

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What Is It?

Trigger finger is a “snapping” of any of the fingers or thumb of the hand when opened or closed. Instead of a smooth continual movement, the digit stutters then snaps into a fully straight or fully bent position. The “snap” is frequently associated with pain at the base of the finger on the palm of the hand.

Trigger finger is caused by local swelling from inflammation or scarring around the tendons which normally move the digit. Usually trigger finger occurs as a condition alone but may be associated with an underlying illness which causes inflammation of tissues of the hand, such as rheumatoid arthritis.

What is the treatment for Trigger Finger?

Stretching, ice and anti inflammatory treatments can be helpful. Most patients respond to a local cortisone injection around the affected tendon. When trigger fingers persist after two injections and are not responsive to the above treatments, surgical procedures to remove the inflamed or scarred tissue is advisable. Surgery is usually performed under a local anaesthetic and involves a two cm incision at the base of the affected finger. The swelling on the tendon or sheath is identified and the sheath opened to allow easy movement of the tendon again. Usually the operation takes 8-10 minutes and involves a tight tourniquet on your arm. This is uncomfortable but should not be painful unless the operation is longer than normal.

Post operation

You are normally in hospital for two hours in total. Your hand will be bandaged and you will be asked to keep the hand above the elbow as much as possible for 48 hours. You should move the affected finger as much as possible. After 48 hours you can reduce the dressings down to the small plaster over the wound. You can then return to most activities including driving but nothing strenuous or manual for 10 days, until the stitches are removed at your GP practice. The scar will be tender for six weeks.

Can Anything Go Wrong?

Trigger finger release is a very safe, reliable procedure. Following the operation the wound can sometimes become infected (1 in 100) and require a course of antibiotics. Occasionally, triggering of the digit can recur (1 in 50).