The flexor digitorum profundus allows you to bend your ring, middle, index, and pinkie fingers. Theflexor pollicis longus allows you to bend your thumb. The pronator quadratus is a square-shaped ...

Unlike the Stener lesion, sprains of the UCL and even Gamekeeper’s thumb fractures heal well on their ... a small portion abductor pollicis longus, or even a part of the flexor carpi radialis tendon.

The thumb has no lumbricales ... If tendon retraction is significant, one option is lengthening the flexor pollicis longus (FPL), performed at the musculotendonous junction so that the lengthening ...