children

Pseudosubluxation

Definition

 

Subluxation in children up to 8

- C 2/3 in 40% children

- C 3/4 14%

- up to 4 mm

 

Aetiology

 

Horizontal facet joints

- flat orientation of paediatric facets and laxity of ligaments

 

Become more vertical with age

 

Diagnosis

 

1. Swischuk's Line

- drawn along spinolaminar line C1 & C3

Acute

Definition

 

Infection of bone 2° blood-borne bacteria

 

Epidemiology

 

Most common children

- peak 10 years

 

True haematogenous OM rare in adults

- usually involves spine

 

M: F 2:1

 

Site

 

Most common femur & tibia