Trigger finger

Question 1

what is it?

Answer 1

abnormal flexion of the digits.

In simple terms the tendon becomes ‘stuck’ and cannot pass smoothly through the pulley.

Question 2

causes

Answer 2

It is thought to be caused by a disparity between the size of the tendon and pulleys through which they pass.

Question 3

associations

Answer 3

idiopathic

rheumatoid arthritis

diabetes mellitus

Question 4

males or females

Answer 4

females

Question 5

features

Answer 5

more common in the thumb, middle, or ring finger

initially stiffness and snapping (‘trigger’) when extending a flexed digit

a nodule may be felt at the base of the affected finger

Question 6

mx

Answer 6

steroid injection

finger splint

surgery - not responded to steroid injections