What condition is Trigger Finger associated with?

Trigger finger is a condition primarily associated with thickening of the flexor sheaths. The flexor sheaths are the protective layers that encase the tendons responsible for bending the fingers. When inflammation occurs in these sheaths, they can thicken, which creates a narrowing of the tunnel through which the tendons pass. This narrowing can impede the smooth gliding motion of the tendons, leading to the characteristic locking or catching sensation of trigger finger.

The condition can cause pain and difficulty in flexing the affected finger, as the tendon becomes restricted in its movement due to the thickened sheath. The other conditions mentioned do not accurately describe the primary pathology involved in trigger finger; thus, the thickening of the flexor sheaths is key to understanding the mechanism behind this condition.