Treatment of Symptoms: Although trigger finger surgery and cortisone injections are the most common treatments, they have very poor success rates. FLEXTEND® on the other hand has been used successfully for the treatment of Trigger Finger by breaking down the nodule / adhesion on the affected tendon and thinning the tendon through active stretches and exercises. As the scar tissue on the flexor tendon breaks down and/or the tendon thins, it slides through the pulley system with greater ease, reducing the popping, snapping and locking associated with Trigger Finger / Thumb.