Trigger finger surgery cuts the tight pulley that makes a finger catch or lock, and in a randomized trial it cured 99 percent of fingers at one year against 49 percent after a steroid injection. This guide covers injections, open and needle release, wide-awake surgery, trigger thumb in children, risks, recovery and the stay.
About This Department
Orthopedics
Trigger finger surgery frees a tendon that catches. In a randomized trial, it cured 99 percent of fingers at one year.
A steroid injection settles many trigger fingers for a while, but in a Danish trial of 165 patients only half of injected fingers were still free a year later, against 99 percent after surgery. The operation takes minutes under local anesthetic and leaves a scar of about a centimeter and a half. Send a short video of the finger bending and straightening and a note of any earlier injections, and our hand team will tell you whether you need surgery.
99% vs 49%
Fingers cured at one year after surgery and after an injection
3%
Major complications after 78 open releases
63%
Trigger thumbs in children that resolved without treatment
Each finger tendon runs through a series of tunnels, called pulleys, that hold it close to the bone. When the first tunnel at the base of the finger thickens, or the tendon swells into a nodule, the tendon catches on its way through and the finger clicks, locks bent or snaps straight. Women in their fifties and sixties and people with diabetes get it most, and the ring finger and thumb lead the list.
Treatment climbs a ladder.
1
Rest and a splint
A night splint that keeps the finger straight, for six weeks, for mild catching.
2
Steroid injection
One injection into the tendon sheath, which settles the swelling for weeks or months.
3
A second injection
If the first helped and the catching returns.
4
Release surgery
When injections fail, the finger locks, or you have diabetes, where injections work less well.
Open surgery is superior to ultrasound-guided corticosteroid injections.
Randomized trial of 165 patients, Journal of Hand Surgery, 2017
Trigger finger progresses through four stages.
Pain and a tender lump at the base of the finger in the palm.
Catching or clicking that you can work through.
Locking, freed only with the other hand.
A finger stuck bent that no longer straightens.
Hansen and colleagues gave 165 patients either open surgery or a single steroid injection guided by ultrasound.
This table scrolls sideways on a narrow screen. Swipe or drag to see every column.
Open surgery against steroid injection, 165 patients
Outcome
Open surgery
Steroid injection
Success at three months
99 percent
86 percent
Success at one year
99 percent
49 percent
Pain at final follow-up
Lower
Higher
Complications
3 superficial infections, 1 nerve injury
11 steroid flares, 2 fat loss under the skin
In patients with diabetes, corticosteroid injections did not decrease the surgery rate or improve symptom relief compared with the placebo.
Double-blind randomized trial, Journal of Bone and Joint Surgery, 2007
Injections and diabetes
In the same study, 25 of 29 fingers in people without diabetes settled after one or two injections, against 12 of 19 in people with diabetes. Kidney and nerve damage from diabetes made surgery more likely. For patients with diabetes, we discuss going straight to release, and an injection also raises blood sugar for a few days.
1
Watch
A trigger thumb found in a toddler needs no treatment at first.
2
Review every six months
Most thumbs straighten slowly, many within four years.
3
Release
When the thumb stays fixed and stops improving, or bothers the child, a short operation under general anesthesia frees it.
Pediatric trigger thumb can be expected to resolve without treatment in >60% of patients.
Prospective study of 71 thumbs, Journal of Bone and Joint Surgery, 2008
The evidence on needle release
A meta-analysis of seven randomized trials and 676 patients compared release through a needle with open surgery and with injections. Needle and open release failed at the same low rate with the same complications. Against injections, needle release failed far less often, with a risk ratio of 0.07, and patients were twice as satisfied.
The three treatments side by side.
This table scrolls sideways on a narrow screen. Swipe or drag to see every column.
Treatments for trigger finger compared
Treatment
How it works
What the trials show
Steroid injection
Shrinks the swollen tendon and sheath
Half of fingers relapse within a year
Open release
Cuts the tight pulley through a small incision
Cure in 99 percent at one year
Needle release
Cuts the pulley with a needle through the skin
Same failure rate as open release
Trigger finger release surgery
The operation cuts the thickened first pulley, the A1 pulley, so the tendon glides freely. The other pulleys stay intact and keep the tendon close to the bone, so grip strength does not change.
Several fingers at once
Many patients have two or three trigger fingers. We release them in the same sitting under the same local anesthetic, which adds a few minutes per finger and no extra recovery time.
This table scrolls sideways on a narrow screen. Swipe or drag to see every column.
Release techniques
Technique
Anesthesia
Back to light use
Open release
Local injection in the palm
The same day
Needle release
Local injection
The same day
Wide-awake open release
Local with adrenaline, no tourniquet
The same day
Open release
The standard operation, and the one we use most, runs in five steps.
Local anesthetic into the palm.
An incision of about a centimeter and a half in a skin crease.
The surgeon spreads the tissue to protect the two small nerves on either side of the tendon, then divides the A1 pulley along its full length under direct vision.
You bend and straighten the finger on the table to confirm it glides.
Two or three stitches and a light dressing.
Needle release
A needle passed through the skin cuts the pulley without an incision. It suits the middle and ring fingers, where the nerves sit furthest from the pulley, and it leaves only a pinprick that heals in a day or two, although the surgeon works by feel rather than by sight and a strip of pulley occasionally stays uncut. At the thumb and index finger, nerves cross close by. There we prefer open release.
Wide-awake surgery
Local anesthetic mixed with adrenaline numbs the palm and stops bleeding without a tight cuff on the arm. No fasting. No sedation. You stay fully awake and bend the finger on request before the stitches go in, so the surgeon and you both see the tendon gliding freely and any remaining catch gets released on the spot, and people with diabetes or heart conditions avoid a general anesthetic altogether.
Trigger thumb in children
In young children the thumb tip stays bent and rarely clicks. Parents notice it around the age of one or two. In a study of 71 thumbs left untreated, 63 percent straightened on their own at a median of four years, and nearly all of the thumbs that did not straighten fully still bent less as the years went by, which gives parents good reason to wait. We watch first. Surgery waits for a thumb that stays fixed.
Recovery and risks
Risks of trigger finger surgery
Serious problems stay rare.
How often things go wrong
In a series of 78 open releases, two had a major complication, 3 percent, one a leaking tendon sheath and one a stiff middle finger joint. Minor problems followed 28 percent, mostly a tender scar, swelling or slow return of full movement, and nearly all settled within weeks.
Call the team the same day
Redness spreading from the wound, pus, a temperature of 38 degrees or more, or numbness along one side of the finger that persists after the anesthetic has worn off.
Recovery week by week
Bend and straighten the finger fully from the first hour. Keep the dressing dry for two days. Light use of the hand from the same day, typing and phone use within days, stitches out at ten to fourteen days, and full grip and heavy work after three to four weeks. The scar stays tender for two to three months.
The surgeon performing open trigger finger releases should inform the patient of the likelihood of having these minor complications.
Review of 78 open releases, Journal of Hand Surgery, 2010
A stiff finger after release
A finger that has locked for months before surgery keeps some stiffness at the middle joint. Daily stretching and hand therapy restore it over weeks, and we fit a night splint if the finger will not straighten fully.
The stay in Istanbul
Two to four days are enough
Trigger finger release runs as a day case, and you walk out with a light dressing. Stay two to four days for a wound check, then fly with the stitches in. Your local doctor or nurse removes them at ten to fourteen days, and follow-up after you return home runs through your coordinator by video. Coordinators speak English, Arabic, French, Russian, Serbian, Romanian and Spanish, and a companion is welcome in the treatment room. The cost depends on the number of fingers, and the estimate after the free review lists it.
Trigger finger surgery FAQ
Should I try an injection before surgery?
For a first, mild trigger finger, one injection is reasonable. If it returns, if the finger locks, or if you have diabetes, surgery gives a more lasting result.
Is trigger finger surgery painful?
The local anesthetic injection stings for a few seconds. After that you feel pressure and no pain, and simple painkillers cover the first two days.
Can the trigger finger come back after surgery?
Rarely. In the Danish trial, 99 percent of operated fingers stayed free at one year.
Can several fingers be done together?
Yes, in one sitting under the same anesthetic, both hands if you wish, although one hand at a time keeps daily life easier.
When can I fly home?
Two to four days after surgery, with the stitches in.
References
Hansen RL, Søndergaard M, Lange J. Open surgery versus ultrasound-guided corticosteroid injection for trigger finger: a randomized controlled trial with 1-year follow-up. Journal of Hand Surgery (American Volume). 2017;42(5):359-366.
Wang J, Zhao JG, Liang CC. Percutaneous release, open surgery, or corticosteroid injection, which is the best treatment method for trigger digits? Clinical Orthopaedics and Related Research. 2013;471(6):1879-1886.
Baumgarten KM, Gerlach D, Boyer MI. Corticosteroid injection in diabetic patients with trigger finger: a prospective, randomized, controlled double-blinded study. Journal of Bone and Joint Surgery (American Volume). 2007;89(12):2604-2611.
Will R, Lubahn J. Complications of open trigger finger release. Journal of Hand Surgery (American Volume). 2010;35(4):594-596.
Baek GH, Kim JH, Chung MS, et al. The natural history of pediatric trigger thumb. Journal of Bone and Joint Surgery (American Volume). 2008;90(5):980-985.
Editor's note
Written by the Biruni Hospital medical editorial team. Reviewed by Assistant Professor Şafak SAYAR, Orthopedics and Traumatology.
