Infections Flashcards
What is osteomyelitis and what is it caused by?
Bone inflammation usually caused by bacterial infection (Staphylococcus sp.)
WHat is the most common caue of osteomyelitis in the US?
Direct penetration
What is the most common site of osteomyelitis caused by hematogenous spread?
Metaphyses of the long bones (knee ankle hip)
What is a cloacal lesion?
Hole formed in the bone during the formation of a draining sinus
What is the name of the reactive bone from the periosteum and the endosteum which surrounds and contains the infectious agent of osteomyelitis?
Brodie abscess
What is the name of the lesion in which periosteal new bone formation forms a sheath around the necrotic sequstrum in infectious osteomyelitis?
Involucrum
What are possible complications of osteomyelitis?
- Septicemia
- Acute bacterial arthritis
- Pathologic fractures
- SCC
- Amyloidosis
- Chronic osteomyelitis
What is the route of tuberculosis of the bone?
Spread from elsewhere (generally lungs or lymph nodes)
What is the disease in which tuberculosis attacks the vertebral body?
Tuberculous spondylitis (Pott disease)
What is the name of the lesion in which pus and necrotic debris from tuberculosis drains anterior along the spinal ligaments?
Cold abscess
A tuberculous lesion that forms near the lower lumbar vertebrae and dissects along the pelvis to emerge through the inguinal region as a draining sinus
Psoas abscess
What can tuberculous arthritis result in?
Bony ankylosis (destroyed joint replaced by bone)
What is the name of the disease caused by congenital syphilis in which a child is left with a functionless limb?
Pseudoparalysis of Parrot
What are the bone lesions that occur in the tertiary phase of acquired syphilis?
Saber shins and saddle nose
