Splint for trigger finger: how night splinting fits into treatment
We research products from makers' specs and health sources; we do not run hands-on tests. Links to Amazon may earn us a commission at no cost to you. How this works.
- Finger extension splint for night wear. Best for: A finger that catches or locks, especially in the morning. See options on Amazon
- Adjustable trigger finger splint with a soft strap. Best for: Fingers that swell a little overnight or between sizes. See options on Amazon
- Thumb splint for trigger thumb. Best for: Catching or locking in the thumb. See options on Amazon
What trigger finger is and why a splint is used
AAOS OrthoInfo describes trigger finger as a condition affecting tendons in the fingers or thumb that stops them bending normally. Signs include a catching, popping or locking feeling and a finger that gets stuck bent. AAOS says stiffness and locking are often worse in the morning.
AAOS says it affects about 2% of the general population and is most common in women between 40 and 60, in people with diabetes or rheumatoid arthritis, and in people who grip or pinch repeatedly. The NHS says the risk is higher over age 40.
The NHS describes splinting as strapping the finger to a plastic splint to keep it straight and reduce movement.
Choosing a splint
Over-the-counter trigger finger splints come in a few shapes. The sources cited here do not name one shape as best, so a hand therapist is the right person to choose if you can see one. The North Tees and Hartlepool NHS hand therapy leaflet says the therapist provides the splint and that it is worn at night.
| Shape | What it does | Trade-off |
|---|---|---|
| Finger extension splint | Holds the whole finger straight | Simple; blocks all finger use while on |
| Ring-style or knuckle splint | Limits bending at one joint | Allows some hand use; fit must be exact |
| Thumb splint | Holds the thumb straight for trigger thumb | Must be sized for the thumb, not a finger |
A splint does not need to be complicated to keep a finger straight. A national NHS Scotland leaflet notes that even a lollipop stick held on with tape can work as a temporary splint.
Wearing it safely
- Wear it at night unless told otherwise, as both AAOS and the North Tees leaflet describe.
- Check your skin. The North Tees leaflet warns that wearing a splint continuously can irritate the skin, and says to contact your hand therapist if the skin becomes red, dry or blistered, or the splint rubs or digs in.
- Keep it clean and away from heat. The same leaflet suggests cleaning the splint with baby wipes or a damp cloth and keeping it away from heat sources.
- Ease off painful tasks. The NHS advises reducing activities that make symptoms worse.
- Be patient. The North Tees leaflet says improvement may take up to 12 weeks.
If splinting is not enough
The NHS lists anti-inflammatory medicines (NSAIDs), splinting, steroid injections, and surgery, and says surgery is only done if other treatments have not worked. AAOS says a steroid injection may resolve the condition and up to three injections may be given. The NHS Scotland leaflet says an injection relieves pain and triggering in about 70% to 80% of cases, with lower success in people with diabetes. AAOS notes injections can raise blood sugar for about 10 to 14 days in people with diabetes who take insulin.
If those do not work, AAOS describes a trigger finger release, an outpatient operation that opens the tight pulley so the tendon can glide. AAOS says people feel fully recovered about 6 months after surgery on average.
Related hand care
Because repeated gripping is a risk factor, be thoughtful about hard grip training while a finger is catching. Our grip trainer and hand exerciser guides cover gentler options. For splints used after injuries rather than tendon problems, see our finger splint guide.
What to look for when you buy
Finger extension splint for night wear
Best for: A finger that catches or locks, especially in the morning
It keeps the finger straight while you sleep, which is how AAOS describes splinting for trigger finger.
Watch out: Can feel odd for the first nights. Check the skin each morning for red or rubbed areas.
See options on AmazonAdjustable trigger finger splint with a soft strap
Best for: Fingers that swell a little overnight or between sizes
An adjustable strap lets you fine-tune the fit as swelling changes, which helps avoid the rubbing the North Tees leaflet warns about.
Watch out: Straps that are too tight can leave the fingertip numb; loosen and recheck.
See options on AmazonThumb splint for trigger thumb
Best for: Catching or locking in the thumb
AAOS covers trigger thumb with trigger finger. A splint shaped for the thumb holds it straight without slipping.
Watch out: A finger splint usually fits a thumb poorly; buy one made for the thumb.
See options on AmazonQuestions people ask
- How long should I wear a splint for trigger finger?
- AAOS and the North Tees leaflet describe night wear. The North Tees leaflet says improvement may take up to 12 weeks; ask your therapist how long to keep going.
- Does a splint work for trigger finger?
- It is a common first treatment listed by AAOS and the NHS. If it does not settle things, steroid injections and then surgery are the next options.
- Should I wear a trigger finger splint during the day?
- AAOS and the North Tees leaflet describe night wear. Daytime use can be discussed with your therapist, and the NHS advises cutting back on activities that make symptoms worse.
- Can I make a temporary trigger finger splint?
- A national NHS Scotland leaflet says even a lollipop stick held on with tape can serve as a temporary splint.
- Who gets trigger finger?
- AAOS says it is most common in women aged 40 to 60, people with diabetes or rheumatoid arthritis, and people who grip or pinch repeatedly.
Sources
- Trigger Finger (orthoinfo.org), AAOS OrthoInfo
- Trigger finger (nhs.uk), NHS
- Hand Therapy: Trigger Finger (nth.nhs.uk), North Tees and Hartlepool NHS Foundation Trust
- Trigger Finger / Thumb (patient information leaflet) (rightdecisions.scot.nhs.uk), NHS Scotland Right Decision Service