Table 1.
Functional scales
| Tarlov score | Description |
| 0 | No movement |
| 1 | Barely perceptible movement, non–weight bearing |
| 2 | Frequent movement, non–weight bearing |
| 3 | Supports weight, partial weight bearing |
| 4 | Walks with mild deficit |
| 5 | Normal but slow walking |
| 6 | Full and fast walking |
| Ischemia score | Description |
| 0 | Autoamputation > half lower limb |
| 1 | Gangrenous tissue > half foot |
| 2 | Gangrenous tissue < half foot, with lower limb muscle necrosis |
| 3 | Gangrenous tissue < half foot, without lower limb muscle necrosis |
| 4 | Pale foot or gait abnormalities |
| 5 | Normal |
| Modified ischemia score | Description |
| 0 | Autoamputation of leg |
| 1 | Leg necrosis |
| 2 | Foot necrosis |
| 3 | Discoloration of 2 toes |
| 4 | Discoloration of 1 toe |
| 5 | Discoloration of > 2 nails |
| 6 | Discoloration of 1 nail |
| 7 | No necrosis |
| The grade of limb necrosis | Description |
| 0 | Normal limb without swelling, necrosis or atrophy of muscle |
| 1 | Necrosis limiting to toes (toes loss) |
| 2 | Necrosis extending to a dorsum pedis (foot loss) |
| 3 | Necrosis extending to a crus (knee loss) |
| 4 | Necrosis extending to a thigh (total hind-limb loss) |
| Function score | Description |
| 0 | Dragging |
| 1 | No plantar flexion |
| 2 | No toe flexion |
| 3 | No grabbing force |
| 4 | Some grabbing force |
| 5 | Normal |