Table 1.
Classification of peripheral arterial disease according to Fontaine stages and Rutherford categories.
| Fontaine | Rutherford | |||
|---|---|---|---|---|
| Stadium | Klinisches Bild | Grade | Category | Clinical Picture |
| I | asymptomatic | 0 | 0 | asymptomatic |
| II a | walking distance > 200 m | I | 1 | mild intermittent claudication |
| II b | walking distance < 200 m | I | 2 | moderate intermittent claudication |
| I | 3 | severe intermittent claudication | ||
| III | ischemic rest pain | II | 4 | ischemic rest pain |
| IV | ulcer, gangrene | III | 5 | minor tissue loss |
| III | 6 | major tissue loss |
Chronic limb-threatening ischemia (CLTI) covers stages III and IV or categories 4–6.