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Terminology of deep sternal wound infection based on involved anatomic layer
| Entity | Type | Involvement |
|---|---|---|
| Superficial sternal infection (above the fascia) | Type 1 | Skin and subcutaneous tissue only |
| Deep sternal infection (below the fascia) | Type 2A | Without involvement of the bone or retrosternal tissue |
| Type 2B | Retrosternal tissue | |
| Type 2C | Bone and retrosternal tissue | |
| Type 2D | Frank osteitis |
