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Table 2 Summary of the classification criteria of the Beit CURE Classification of Childhood Chronic Haematogenous Osteomyelitis

From: The Beit CURE Classification of Childhood Chronic Haematogenous Osteomyelitis—a guide to treatment

Classification type Radiological appearance of bone segment
A Abscess type, osteolytic area(s), no sequestrum, no involucrum
B1 Peripheral, localised cortical sequestrum; minimal/no involucrum
B2 Sequestrum present; stable, normal-looking cortical involucrum
B3 Sequestrum present; stable, sclerotic involucrum
B4 Sequestrum present; unstable, inadequate involucrum
C No sequestrum visible on plain X-ray; densely, diffusely sclerotic bone segment; abscess may be present.
Unclassifiable Inadequate X-ray/disease onset >6-months/previous surgery.
  1. Physeal involvement is indicated by adding a suffix of P for proximal involvement, D for distal involvement and PD for dual physeal involvement