What is the Rutherford Becker classification system?
This is another classification system for chronic limb ischemia. It is popular in the United States and is based on clinical and objective criteria
Clinical Categories of Chronic Limb Ischemia (Rutherford Becker Classification System)
| GRADE | CATEGORY | CLINICAL DESCRIPTION | OBJECTIVE CRITERIA |
|---|---|---|---|
| 0 | 0 | Asymptomatic, not hemodynamically significant | Normal treadmill/stress test |
| I | 1 | Mild claudication | Completes treadmill test, ankle pressure after exercise <25-50 mm Hg less than blood pressure |
| 2 | Moderate claudication | Between categories 1 and 3 | |
| 3 | Severe claudication | Cannot complete treadmill test, ankle pressure after exercise <50 mm Hg | |
| II | 4 | Ischemic rest pain | Resting ankle pressure <40 mm Hg, flat or barely pulsatile ankle or metatarsal pulse volume recording, toe pressure <30 mm Hg |
| 5 | Minor tissue loss: nonhealing ulcer, focal gangrene with diffuse pedal edema | Resting ankle pressure <60 mm Hg, flat or barely pulsatile ankle metatarsal pulse volume recording, toe pressure <40 mm Hg | |
| III | 6 | Major tissue loss: extending above transmetatarsal level, functional foot no longer salvageable | Same as category 5 |
