Trigger finger can leave the finger or thumb stuck in a bent or flexed position. It happens when the protective sheath covering the tendon becomes inflamed. Surgery to cut the tendon sheath can ...

1). Because of the divergence of these tendons, considerable tension is exerted on the fibrous sheath on extension and abduction of the thumb. It is thought by some that this tension, exerted ...

Tendons are strong bands of tissue ... Your scaphoid bone is on the thumb side of your wrist. It’s often broken when you fall and catch yourself on an outstretched hand. A scaphoid fracture ...