Flashcards in Microbiology 12 - Wound, bone and joint infections Deck (17)
What is the major pathogen involved in wound, bone and joint infections?
What are the 3 levels of wound infection?
Organ/ space infection
Recall 2 important risk factors for wound/ bone/ joint infection
Obesity (adipose tissue is poorly-vascularised)
What can be done during orthpaedic procedures to reduce risk of infection?
Which patient group is particularly at risk of septic arthritis?
Those who already have rheumatoid arthritis
Where in the joint do organisms adhere to in septic arthritis?
What are the symptoms of septic arthritis?
Red, painful and swollen joint with *restricted movement*
What investigations for septic arthritis should be done before starting antibiotics?
1. Blood cultures
2. Synovial fluid aspiration
When is MRI indicated for septic arthritis patients?
When osteomyelitis is suspected
How is septic arthritis managed?
4-6 weeks IV antibiotics
What are the symptoms of vertebral osteomyelitis?
Back pain and fever
How is osteomyelitis diagnosed?
How is vertebral osteomyelitis treated?
At least 6w of antibiotics
What is the most common pathogen implicated in prosthetic joint infections?
Coagulase negative staphylococcus
What would an x ray show in prosthetic joint infections?
How many tissue samples are required for the lab when a patient goes to theatre for a suspected joint infection?
5 (If >3 yield same organism = infection)