osteomyelitis

Question 1

patho osteomyelitis

Answer 1

severe infection of the bone, bone marrow, and surrounding tissue
most common causative organism: S aureus
-enter through direct open wound (pressure ulcer, open fracture) or indirect blunt trauma or bacteremia
acute less than 1 month
chronic more than 1 month

Question 2

S/S of osteomyelitis

Answer 2

Constant bone pain unrelieved with rest and worse w/ activity swelling, tenderness, warmth at the site
systemic fever, night sweats, chills, restlessness, nausea, malaise

Question 3

diagnosis of osteomyelitis

Answer 3

• blood/wound cultures
• elevated WBC
• ESR shows inflammation
• MRI/CT identifies the extent of damage in bone and soft tissue
• BONE BIOPSY IS the DEFINATIVE DIAGNOSIS

Question 4

preparation for MRI/CT

Answer 4

MRI- no pacemakers or metal
CT- hold metformin for 2 days prior to CT
also check for allergies to contrast and claustrophobia

Question 5

osteomyelitis treatment

Answer 5

IV antibiotics: penicillins, mycin drugs can cause auditory toxicity (peak & trough draws)
on antibiotics for 6-8wks
-irrigation of wound with antibiotics (intermittent/continuous)
-Surgery:remove poorly vascularized tissue/bone
-amputation may be needed
-wound vac
-hyperbaric oxygen used to stimulate circulation &healing
-immobilization/ to decrease pain /poss splints/traction