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Wagner grading system for skin ulcers
| Stage | Grade | Character |
|---|---|---|
| A | Grade 1 | Superficial ulcer |
| B | Grade 2 | Ulcer extension Involves ligament, tendon, joint capsule or fascia No abscess or osteomyelitis |
| C | Grade 3 | Deep ulcer with abscess or osteomyelitis |
| D | Grade 4 | Gangrene |
| E | Grade 5 | Extensive gangrene |
