What is a trigger finger and why does it occur?
Trigger finger, also known as stenosing tenosynovitis, is caused by inflammation or thickening of the tendon sheath surrounding a flexor tendon in the finger. This prevents the tendon from gliding smoothly, leading to pain, stiffness and locking of the affected finger.
Common causes include repetitive hand use, overuse, and underlying conditions such as rheumatoid arthritis or diabetes. Symptoms may include:
- Pain or tenderness at the base of the affected finger.
- Difficulty bending or straightening the finger.
- A clicking or snapping sensation during movement.
- In severe cases, complete locking of the finger in a bent position.
What does a trigger finger release involve?
Trigger finger release is a minor surgical procedure typically performed under local anesthesia. The goal is to open the tight tendon sheath (pulley) to allow the tendon to move freely again.
During the procedure, the surgeon makes a small incision near the base of the affected finger or thumb. The tight band of tissue is carefully released to restore smooth tendon motion. Once the tendon glides freely, the incision is closed with a small stitch.
The surgery usually takes between 15 and 30 minutes and is performed as an outpatient procedure.
Recovery after trigger finger release
Recovery is generally quick and straightforward. In most cases, the finger can move freely immediately after the surgery, although mild swelling or stiffness may persist for a few days.
Key aspects of recovery include:
• Avoiding heavy hand use during the first weeks after surgery.
• Performing gentle mobility exercises to reduce stiffness and promote function.
• Keeping the wound clean and dry until it is fully healed, usually within 1 to 2 weeks.
Most patients regain full function within a few weeks, and long-term results are typically excellent.
Potential risks and complications
Although trigger finger release is a safe and commonly performed procedure, potential complications include:
• Infection at the incision site.
• Temporary numbness or tingling around the surgical area.
• In rare cases, scar formation or persistent stiffness.
Choosing a qualified and experienced surgeon helps minimize these risks.
Treatment outcomes
The majority of patients experience immediate relief from symptoms following surgery. Pain subsides, tendon movement is restored, and the finger functions normally without locking or clicking. For those with chronic or severe symptoms, trigger finger release offers a long-lasting solution that significantly improves daily hand function.
