Stenosing tenosynovitis, also called trigger finger, is caused by inflammation or scarring around the tendon that leads to what?

Stenosing tenosynovitis, also called trigger finger, is caused by inflammation or scarring around the tendon that leads to what?

• A. Degeneration of bone
• B. Dislocation of the finger joint
• C. Inflammation around the bone marrow
• D. Inflammation or scarring around the tendon causing a finger to snap closed

Answer: (D)

Stenosing tenosynovitis arises when the flexor tendon and its sheath become inflamed or scarred, narrowing the space where the tendon slides through its pulley system. That restricted glide lets the tendon catch at the pulley, so as the finger moves it may snap—often appearing to close suddenly in a flexed position. So the defining issue is inflammation or scarring around the tendon causing a finger to snap closed. The other options describe problems with bone or joints, which are not what trigger finger involves.

Stenosing tenosynovitis arises when the flexor tendon and its sheath become inflamed or scarred, narrowing the space where the tendon slides through its pulley system. That restricted glide lets the tendon catch at the pulley, so as the finger moves it may snap—often appearing to close suddenly in a flexed position. So the defining issue is inflammation or scarring around the tendon causing a finger to snap closed. The other options describe problems with bone or joints, which are not what trigger finger involves.