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Table 3 Classification proposed by Jones in 1997 based on anatomical site plus a type including sepsis

From: Review on risk factors, classification, and treatment of sternal wound infection

Classification

Depth

Description

Type 1a

Superficial

Skin and subcutaneous

Type 2b

Superficial

Exposure of sutured deep fascia

Type 2a

Deep

Bone exposure, sternum with stable steel suture

Type 2b

Deep

Bone exposure, sternum with unstable steel suture

Type 3a

Deep

Necrotic bone exposure or fractured, unstable sternum, exposed heart

Type 3b

Deep

Type 2 or 3 with septicemia