A short, outpatient procedure in which the thickened A1 pulley of the tendon sheath is surgically released to address finger catching or locking during flexion.
Indication
- Trigger finger (stenosing tenosynovitis) unresponsive to steroid injection and splint therapy
- Recurrent locking, pain or clicking during extension
- Inability to extend the finger or fixed flexion contracture that opens with passive assistance
- Resistant cases in diabetic or rheumatoid patients (refractory to medical therapy)
- Painful nodule in the palm at the level of the A1 pulley
- Multiple finger involvement and complaints affecting daily activities
Preparation
- Hand examination and assessment of the mechanical features of triggering
- Control values for systemic conditions such as diabetes and rheumatoid arthritis
- Aspirin/blood thinners adjusted with physician approval
- Rings are removed; hand skin care and absence of signs of infection
- Marking of the finger before the procedure
How it's performed
- Local anesthesia is applied to the palm; bleeding is reduced with a tourniquet
- 1-1.5 cm transverse or longitudinal incision distal to the metacarpophalangeal joint of the affected finger
- Subcutaneous tissues are separated; the A1 pulley (thickened pulley) is exposed while protecting the digital nerves and vessels
- The thickened A1 pulley is incised vertically along its full length (complete release ensured)
- The opening-closing motion of the finger is tested passively; the catching is resolved
- Bleeding control, skin closure, and sterile dressing application
Post-procedure
- Same-day discharge; elevation of the hand and edema control
- Mild pain in the first 24-48 hours; simple analgesics are sufficient
- Dressing changed in 2-3 days; sutures removed in 10-14 days
- Early finger motion is started immediately (to prevent tendon adhesion)
- Full recovery in 4-6 weeks; return to heavy hand work after 4 weeks
Risks
- Infection (rare, less than 1%)
- Digital nerve injury (rare, sensitivity or numbness)
- Insufficient release — symptom persistence and need for revision
- Bowstringing (tendon protruding toward the skin — if A2 is incorrectly cut)
- Stiffness or scar tissue tenderness
FAQ
Can I have direct surgery instead of steroid injection?
Generally 1-2 steroid injections are tried first; success rate is 50-80%. In diabetes, advanced locking, or recurrent cases, surgery may be recommended as the first option.
When can I return to work?
Return to desk work is possible the next day. In professions with intensive hand use (typist, musician, heavy laborer), 1-3 weeks of rest may be needed.
Does trigger finger recur?
The recurrence rate after surgery is low (under 3%). In people with diabetes, rheumatoid arthritis, and multiple finger involvement, new involvement may occur in other fingers.
Is the percutaneous (needle) method an alternative to surgery?
The percutaneous method can be applied to some fingers, but open surgery is safer for the thumb and areas near the digital nerves. The physician evaluates which method is appropriate.
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