5- Orthopaedic Infections Flashcards

1
Q

What is osteomyelitis?

A

Infection of bone, including its marrow

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2
Q

What are the main mechanisms by which bone can become infected?

A

Penetrating trauma/surgery

Haematogenous spread

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3
Q

What is a sequestrum?

A

Dead segment of bone

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4
Q

What is the significance clinically of sequestrums?

A

Once one develops, antibiotics will not cure infection

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5
Q

Why do kids tend to get acute osteomyelitis more than adults?

A

Metaphyses have poor/slow blood flow which enables bacteria to accummulate easier

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6
Q

Which organism is the commonest cause of bone infections?

A

Staph. aureus

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7
Q

Chronic osteomyelitis cannot be treated by antibiotics alone. True/False?

A

True

Surgical debridement also usually required

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8
Q

Which group of people are particularly at risk of osteomyelitis of the spine?

A

IV drug users
Diabetics
Immunocompromised

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9
Q

List clinical features of osteomyelitis of spine

A

Constant insidious back pain
Paraspinal muscle spasm
Spinal tenderness
Systemic upset

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