Orthonotes
Orthonotes
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Osteomyelitis — Cierny–Mader Staging

Cierny–Mader classifies adult osteomyelitis by anatomic type (I–IV) and host status (A/B/C). Type I: Medullary; Type II: Superficial; Type III: Localized (cortical sequestration with stable bone); Type IV: Diffuse (circumferential). Host: A (healthy), B (systemic/local compromise), C (treatment worse than disease). Management tailored: debridement extent, stability, dead space management, local/systemic antibiotics. Principles: radical debridement, skeletal stability, soft-tissue cover, dead-space obliteration, culture-directed antibiotics.

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Cierny–Mader classifies adult osteomyelitis by anatomic type (I–IV) and host status (A/B/C). Type I: Medullary; Type II: Superficial; Type III: Localized (cortical sequestration with stable bone); Type IV: Diffuse (circumferential). Host: A (healthy), B (systemic/local compromise), C (treatment worse than disease). Management tailored: debridement extent, stability, dead space management, local/systemic antibiotics. Principles: radical debridement, skeletal stability, soft-tissue cover, dead-space obliteration, culture-directed antibiotics.
MCQs

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Question 1

Which type of osteomyelitis, according to the Cierny–Mader classification, is characterized by medullary involvement?

Question 2

What is the primary host classification for a patient with no systemic illnesses and a good immune response?

Question 3

Which type of osteomyelitis is described as having localized cortical sequestration with stable surrounding bone?

Question 4

What is the main treatment principle for osteomyelitis as per Cierny–Mader classification?

Question 5

In the Cierny–Mader classification, which type of osteomyelitis involves the entire segment of the bone?

Question 6

Which host classification describes a patient where the treatment poses a greater risk than the osteomyelitis itself?

Question 7

Which of the following is NOT a classic pathological feature of chronic osteomyelitis?

Question 8

What is a common causative organism in osteomyelitis across all age groups?

Question 9

What is an essential component of managing osteomyelitis according to the Cierny–Mader principles?

Question 10

Which type of osteomyelitis is characterized by superficial involvement of the cortical surface?