examination findings

Lis Franc

HistoryLis Franc

Jacques LisFranc De St-Martin (1790 - 1847)

General Surgeon in Napoleonic army

 

Mechanism

 

High energy

 

1.  Twisting / Abduction injury of forefoot

- original description is fall from horse with foot caught in stirrups

- MVA

 

2.  Axial Loading

 

Lumbar Herniated Discs

Epidemiology

 

Sciatica > 2/52 1.6%

 

M:F = 1:1

 

Most common L4/5 

L5/S1 inherently stable 

 

Risk factors

 

Sedentary lifestyle

Smokers

Frequent driving

Heavy lifting 

 

Anatomy

 

Annulus Fibrosis

- circumferential, multilayered rim