The goal of surgery is to widen the opening of the tunnel so that the tendon can slide through it more easily. The surgery is performed through a small incision in the palm or sometimes with the tip of a needle. The tendon sheath tunnel is cut. When it heals back together, the sheath is looser and the tendon has more room to move through it.
Symptoms:
Finger stiffness, particularly in the morning
A popping or clicking sensation as you move your finger
Tenderness or a bump (nodule) at the base of the affected finger
Finger catching or locking in a bent position, which suddenly pops straight
Finger locked in a bent position, which you are unable to straighten
Causes:
Narrowing of the sheath that surrounds the tendon in the affected finger