fractures

Anatomy

Radial bow radius

- important for rotation

Interosseous membrane

- Z pattern

- proximal radius to distal ulna

Mechanism

Direct blow

- ulna / night stick

Ossification

Primary

- 8 / 52 gestation radius & ulna

Secondary

- distal radius age 1

- distal ulna age 5

Non Operative Management

Unacceptable Position

< 10:  > 15^o malalignment

> 10:  > 10^o malalignment

Postreduction Positionin / Rule of Thirds 

Definition

Fracture with break in skin communicating with fracture haematoma or fracture

- contamination with micro-organisms

- coupled with damage to ST and vascular supply

- leads to increased risk in infection and healing problems

Gustillo Classification

Grade I

- low velocity / wound < 1cm

- minimal contamination & minimal tissue injury

Grade II

Definition

A HLA B27 positive, seronegative spondyloarthropathy with sacroiliac joint & spine involvement

Mainly affects the cartilaginous joints of the axial skeleton

Diagostic Criteria (1966 New York)

1. Positive X-ray Sacroiliitis