Trigger Finger Disorder
Synonyms
Digit, Trigger
Digits, Trigger
Entrapment, Flexor Tendon
Entrapments, Flexor Tendon
Finger, Snapping
Fingers, Snapping
Flexor Tendon Entrapment
Flexor Tendon Entrapments
Snapping Finger
Snapping Fingers
Tendon Entrapment, Flexor
Tendon Entrapments, Flexor
Thumb, Trigger
Thumbs, Trigger
Trigger Digit
Trigger Digits
Trigger Thumb
Trigger Thumbs
A painful disability in the hand affecting the finger or thumb. It is caused by mechanical impingement of the digital flexor tendons as they pass through a narrowed retinacular pulley at the level of the metacarpal head. Thickening of the sheath and fibrocartilaginous metaplasia can occur, and nodules can form. (From Green's Operative Hand Surgery, 5th ed, p2137-58).