union

Anatomy

Radial bow radius

- important for rotation

Interosseous membrane

- Z pattern

- proximal radius to distal ulna

Mechanism

Direct blow

- ulna / night stick

Metatarsal Fractures

Indications for Surgery

1.  Displacement > 4 mm

2.  Angulation > 10^o

3.  Intra-articular

Base of 5th Metatarsal

Classification

Zone 1

- avulsion fractures