Fo

Question 1

Swan neck deformity (5)

Answer 1

Hyperextension of pipj
Secondary flexion of dipj 
Common ra 
Orthosis limits hyperextensiob of pip and allows flexion 
Figure of 8 orthosis

Question 2

Boutonniere/bottomhole deformity (6)

Answer 2

Flexion of pipj
Hyperextension of dipj
Lacerations, burns or ra
Splint pip in hyperextension and leave dip free
Surgical extension kirshner wire or orthosis
Dynamic pip extension orthosis after surgery

Question 3

Damaged volar plate (3)

Answer 3

Goalkeepers frequent hyperextension injuries
Pipj volar plate and joint damage
Carbon fibre figure of 8 orthoses

Question 4

Mallet finger (6)

Answer 4

Rupture of extensor tendon over dipj or bony avulsion
Distal phalnge in flexion
Can be caused by flexion from volleyball, ra or knife cut
Immoblise with distal phalanx in hyperextension
Injury open, kirshner wire used to stabilise joint then splinted
Injury closes then mallet finger splint used