Extensor Tendon Injuries

Question 1

How do you perform a pulversaft weave

Answer 1

3 throws
90deg to each other

Question 2

Mallet finger deformity
- mechanism
- managment of closed soft tissue and bony, large bony fragment with subluxation and open injury
- neglected mallet

Answer 2

Definitive
loss of extension of the DIPJ
either bony or soft

mechanism of injury
- forced flexion of an extended finger - ball striking tip of the finger

Clinical features
- flexed posture of DIPJ
- unable to extend DIPJ

Management
- soft mallet - stack splint 8 weeks full time and 2 weeks high risk activities - BSSH guidelines
- bony mallet (reducible) - stack splint 6 weeks full time and 2 weeks high risk activities - BSSH guidelines
- bony mallet (volar subluxation) - closed reduction and axial K-wire across the DIPJ to achieve joint congruency
- open zone 1 extensor injury - washout/ debridement of wound/ DIPJ and repair of tendon

Chronic mallet
- 6 weeks stack splint
- no improvement DIPJ fusion