Trigger thumb (stenosing flexor tenosynovitis)—when trigger finger affects the thumb—is a common cause of thumb pain. It affects the flexor tendon that bends the thumb and can also affect any ...

If tendon retraction is significant, one option is lengthening the flexor pollicis longus (FPL), performed at the musculotendonous junction so that the lengthening site is proximal to the carpal ...

The deeper sheath and fascia under the FCR tendon are then released. At this point, dissection is done between the radial fascia and the FPL (flexor pollicis longus) muscle that runs deep to the ...

If tenosynovitis or tendon damage is detected ... Participants underwent ultrasound exams of their flexor and extensor tendons. Clinical exams to check for pain and functional impairment were ...