Bone and Joint Tex3

Bone and Joint Tex3 - 2. infants o S. aureus, H. influenzae...

Info iconThis preview shows pages 1–3. Sign up to view the full content.

View Full Document Right Arrow Icon
Bone and Joint Text 1. Bone scan o intravenously injected radioisotope localizes to the areas of increased bone activity that occur at the site of a bone infection o very sensitive but has low specificity 2. Computed tomography (CT scan) o 3-dimensional view of affected area - visualizes bone, surrounding soft tissue and sequestra (islands of dead bone) 3. Magnetic resonance imaging (MRI) o visualizes bone and surrounding soft tissue in a 3-dimensional fashion o the appearance of the bone marrow changes due to the inflammation associated with the bone infection o test of choice for vertebral osteomyelitis
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
4.3. Bone biopsy – the "Gold Standard" pathology abundant PMN's, bony necrosis, positive gram stain microbiology positive culture confirms diagnosis 5. What are the major pathogens causing Osteomyelitis? Pathogens are age specific 1. neonates o S. aureus, group B streptococci
Background image of page 2
Background image of page 3
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: 2. infants o S. aureus, H. influenzae 3. later in life o S. aureus predominates 4. adults o Usually S. aureus o "Mixed infection" (gram positive organisms, gram negative aerobes, anaerobes) - in the setting of peripheral vascular disease and/or diabetes 6. How is Osteomyelistis treated? An individualized treatment plan is often necessary Treatment often involves medical and surgical modalities. Treatment "failures" are frequently due to the need for more surgical treatment as opposed to more or different antibiotics. 6.1. Medical modalities antibiotics o ex. methicillin-sensitive S. aureus osteomyelitis - optimal antibiotics are oxacillin +/- an aminoglycoside for synergy o treatment is frequently long-term (for example, 4-6 weeks) optimization of the management of underlying conditions such as diabetes...
View Full Document

Page1 / 3

Bone and Joint Tex3 - 2. infants o S. aureus, H. influenzae...

This preview shows document pages 1 - 3. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online