osteomyelitis Flashcards
Haematogenous osteomyelitis: is more common in
children
Haematogenous osteomyelitis:
- In children– affect ______ of the ______skeleton
- In adults– affect vertebrae, symphysis pubis, ______ & ______ joints
- In children– affect long bones of the appendicular skeleton
- In adults– affect vertebrae, symphysis pubis, sternoclavicular & sacroiliac joints
Manifestations of haematogenous osteomyelitis
- bacteremia
- pain on movement of the affected extremity
- loss of movement
- local tenderness
Chronic osteomyelitis: is more common in
adults
Chronic osteomyelitis may appear
after a few yrs, spontaneously, after a minor trauma or when resistance is lowered
Tuberculosis osteomyelitis is caused by
mycobacterium tuberculosis
Tuberculosis osteomyelitis: _____ is the most common site
spine (pott’s disease)
Tuberculosis osteomyelitis manifestations
- pain
- immobility
- muscle atrophy
- joint swelling
- mild fever
- leukocytosis
is a bone infection caused by:
bacteria (S.aureus) & fungi
Management of haematogenous osteomyelitis
- Antimicrobial agents (IV then oral)– ceftriaxone, vancomycin
- Supportive measures (pain relief, rest)
- May be a need for debridement/ surgical drainage
In continuous spread: bacteria spread from
adjacent soft tissue
Risks factors of continuous spread/direct penetration
pts with vascular insufficiency (e.g. skin lesion, chronic/ ischemic foot disease usually from poorly controlled diabetes)
Manifestations of continuous spread/direct penetration
- Persistent/recurrent fever
- Increased pain at operative site
- Poor incisional healing
Diagnosis of continuous spread/direct penetration
- Culture & sensitivity
- Conventional radiology, nuclear imaging, CT scans, MRI
Management of continuous spread/direct penetration
Antibiotics
Surgical interventions
