This is an inflammation caused by the overuse of the flexor tendon and its sheath in a finger. The tendon swells and gradually forms a painful nodule, which can vary in size. This nodule may get stuck when the tendon slides back and forth during flexion and extension movements within the unyielding fibrous tunnel of the pulleys.
The “release” of the nodule in one direction or another creates a snapping sensation similar to the triggering of a revolver, hence the name “trigger finger” in English. In cases that are mild or moderate, a local corticosteroid injection can help reduce inflammation and resolve the symptoms (temporarily or permanently).
However, in cases of severe or long-lasting blockage, surgical release is the only effective treatment.
The surgical procedure is most often performed under local or regional anesthesia. A 1.5 cm skin incision is made at the level of the first crease of the finger.
The A1 pulley, which is the site of tendon blockage, is incised lengthwise, enlarging the diameter of the fibrous tunnel and allowing smooth and painless tendon gliding.
AFTER SURGERY :
Hospitalization is outpatient. Finger and wrist mobilization is immediate, but you should not exert force on the operated hand for 1 to 2 months post-surgery. The dressing should be done by a nurse every 2 or 3 days. The scar should not be wetted for the first 3 weeks.
Mild to moderate pain may persist for 4 to 6 weeks, primarily due to the initial inflammation of the affected tendon, but it gradually subsides and disappears. You should not hesitate to take the prescribed pain relievers as needed.