Table 3.18-5. Classification of peripheral artery disease

Fontaine classification stage

Symptoms

Rutherford classification stage

I

Asymptomatic

 

0

IIa

Claudication >200 meters

Mild claudication

1

IIb

Claudication <200 meters

Moderate claudication

2

Severe claudication

3

III

Rest pain

 

4

IV

Ischemic necrosis or ulceration

Minor tissue damagea

5

Major tissue damageb

6

a Nonhealing ulceration, focal gangrene with diffuse pedal ischemia.

b Extending above the transmetatarsal level, functional foot no longer salvageable.

Adapted from Helv Chir Acta. 1954;21(5-6):499-533 and J Vasc Surg. 1997;26(3):517-38.