Trigger Finger

Question 1

What is trigger finger

Answer 1

condition in which the finger or thumb click or lock when in flexion, preventing a return to extension.

Question 2

what is the pathophysiology of trigger finger

Answer 2

Preceded by flexor tenosynovitis often from repetitive movements leading to inflammation of the tendon and sheath

Tendons develop a node on the tendon

the fingers are flexed, the node moves proximal to the pulley, however when the patient attempts to extend the digit this node fails to pass back under the pulley. Consequently, the digit becomes locked in a flexed position.

Question 3

What are the risk factors of trigger finger

Answer 3

Prolonged gripping and use of the hand

RA

DM

Female

Increasing age

Question 4

what are the clinical features

Answer 4

Painless clicking when trying to extend their finger

Over time it may become painful

Question 5

What are the differential diagnosis

Answer 5

DC

Acromegaly

Infection

Ganglion

Question 6

What are the investigations needed

Answer 6

Clinical diagnosis however blood tests to rule out differentials

Question 7

What is the conservative management of trigger finger

Answer 7

Splint to keep finger in extended position

Steroid injections

Question 8

What is the surgical management of trigger finger

Answer 8

percutaneous trigger finger release via a needle

Question 9

what are the complications

Answer 9

Recurrence following surgery