Your finger clicks when you bend it. Some mornings, it locks in a bent position and you have to force it straight with the other hand. The base of the finger is tender. Gripping a steering wheel, a pan handle, or a phone is becoming painful. You’ve searched online and found two options: steroid injection or surgery. Neither sounds appealing.
There’s a third option your doctor may not have mentioned: occupational therapy.
Trigger finger (stenosing tenosynovitis) is one of the most common hand conditions, affecting 2-3% of the general population. In Malaysia, the prevalence is higher among diabetics (up to 10%) and in workers who perform repetitive gripping, factory assemblers, plantation workers, and anyone who drives for hours daily (Malaysian Journal of Medicine and Health Sciences, 2020).
A 2017 study in the Journal of Hand Therapy found that conservative OT treatment (splinting + exercise) resolved trigger finger in 73% of cases, avoiding surgery entirely. For the remaining 27%, surgery was still an option, but three-quarters of patients never needed it.
Finger locking up? OT can fix it without surgery.
What Causes Trigger Finger
Your finger tendons slide through a series of tunnels (pulleys) along the finger. Trigger finger occurs when the tendon develops a swollen nodule, or the pulley narrows, or both, creating a mechanical mismatch. The tendon catches as it tries to slide through the pulley, producing:
- Clicking: The tendon snaps through the pulley with a click
- Locking: The tendon gets stuck and the finger can’t straighten
- Pain: Tenderness at the base of the finger (A1 pulley area)
- Morning stiffness: Worst on waking, improving with movement
Trigger finger most commonly affects the ring finger and thumb, though any finger can be involved. It can affect multiple fingers simultaneously.
Risk factors relevant to Malaysia:
- Diabetes (19.7% prevalence in Malaysia)
- Repetitive gripping occupations (factory, agriculture, cooking)
- Age 40-60
- Women (2-6 times more common than men)
- Rheumatoid arthritis
How OT Treats Trigger Finger
1. Splinting
The primary OT intervention, and the one with the strongest evidence:
Trigger finger splint: A small thermoplastic splint that holds the affected finger’s proximal interphalangeal (PIP) joint in full extension, or blocks the metacarpophalangeal (MCP) joint from full flexion. This prevents the tendon from catching on the pulley.
Wearing schedule: 6-10 weeks of continuous wear (day and night), removing only for prescribed exercises and hygiene. A 2019 study in the Journal of Hand Surgery found that 6 weeks of full-time splinting resolved symptoms in 66-73% of patients.
Why it works: By keeping the finger straight, the splint prevents the repetitive catching motion that perpetuates inflammation. The tendon nodule has time to reduce in size. The pulley has time to recover.
Cost: RM50-150 for a custom-moulded splint at a private OT clinic. Off-the-shelf trigger finger splints (RM30-80) are available but often fit poorly and don’t immobilise the correct joint.
2. Tendon Gliding Exercises
The OT prescribes a specific exercise sequence performed 5-10 times, 3-5 times daily:
- Full extension: Fingers straight, hand flat
- Hook fist: Bend fingers at the middle and end joints only, keeping knuckles straight
- Full fist: Close hand completely
- Tabletop: Bend at the knuckles only, fingers straight
- Straight fist: Fingers curled into the palm with a flat fist
Each position is held for 5 seconds. The sequence moves the tendon through its full excursion within the pulley system, preventing adhesion formation and promoting tendon glide.
3. Activity Modification
The OT identifies which activities are aggravating the trigger finger and provides alternatives:
| Aggravating Activity | Modification |
|---|---|
| Prolonged gripping (steering wheel, tools) | Padded handles, grip breaks every 15 minutes |
| Carrying bags with curled fingers | Forearm carry, trolley bags |
| Repetitive typing or phone scrolling | Rest breaks, voice-to-text |
| Wringing cloths or towels | Press instead of wring, use a towel wringer |
| Cooking (chopping, stirring) | Ergonomic knife handles, food processor, lighter utensils |
| Gardening (secateurs, digging) | Ratchet secateurs, padded tool handles |
4. Massage and Mobilisation
The OT performs:
- Deep friction massage over the A1 pulley to reduce adhesions
- Tendon mobilisation to improve glide
- Education on self-massage technique for daily home application
5. Heat Application
Warm water soaks (10 minutes in warm water before exercises) or paraffin wax treatment reduce stiffness and pain, making exercises more effective. The OT may recommend a home paraffin wax unit (RM200-400) for daily use.
Treatment Timeline
| Week | What Happens |
|---|---|
| Week 1 | Assessment, custom splint fabrication, exercise instruction, activity modification |
| Weeks 2-6 | Full-time splint wear, daily exercises, weekly or biweekly OT sessions for monitoring |
| Week 6 | Reassessment, if clicking has stopped, begin gradual splint weaning |
| Weeks 7-10 | Night-only splint wear, gradual return to activities, continue exercises |
| Week 10-12 | Splint discontinued if symptoms resolved, final assessment |
Total sessions: 4-8 over 10-12 weeks Total cost (private OT): RM500-1,500 including splint
When Surgery Is Needed
OT treatment doesn’t work for everyone. Surgery is recommended if:
- Symptoms persist after 10-12 weeks of consistent splinting and exercises
- The finger is permanently locked (can’t be passively straightened)
- Multiple fingers are severely affected simultaneously
- The patient has diabetes (diabetic trigger finger is more resistant to conservative treatment, success rate drops to 50-60%)
Surgery for trigger finger (A1 pulley release) is a minor procedure done under local anaesthesia. Recovery takes 2-4 weeks. The OT manages post-surgical rehabilitation: scar management, exercise progression, and return to full hand use.
Surgical cost in Malaysia:
- Government hospital: RM50-200 (subsidised)
- Private hospital: RM3,000-8,000
Given that OT conservative treatment costs RM500-1,500 and succeeds in 73% of cases, trying OT first is financially and medically sensible.
Frequently Asked Questions
Can trigger finger come back after treatment? Yes. Recurrence rates are 20-30% within 3 years for both conservative and surgical treatment. Ongoing joint protection and activity modification reduce recurrence risk. If trigger finger recurs after conservative treatment, you can repeat OT or proceed to injection or surgery.
Does a steroid injection work? Steroid injection resolves trigger finger in 57-93% of cases (depending on severity) and provides faster relief than splinting. However, recurrence rates are higher after injection than after splinting (Cochrane Review, 2018). The OT may recommend trying splinting first, injection second, and surgery third.
I have trigger finger in multiple fingers. Can OT still help? Yes, but success rates decrease with multiple affected fingers. The OT can splint and treat 2-3 fingers simultaneously. If more than 3 fingers are affected, surgical referral is usually more practical.
Surgery Is Always Available Later. Try OT First.
A RM100 splint and 6 weeks of exercises resolve trigger finger in 3 out of 4 people. Surgery is always there as a backup. But once you have surgery, you can’t un-have it. Conservative treatment has no downside, and a 73% chance of being the only treatment you need.
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