Radiology CT - Cortical Destruction - Sequestrum Treatment Quiz
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Questions and Answers

What is the most common microorganism causing septic arthritis in all age groups?

  • Mycobacterium
  • Staphylococcus aureus (correct)
  • Streptococcus
  • Salmonella
  • Which type of arthritis usually presents with more acute symptoms than osteomyelitis?

  • Psoriatic arthritis
  • Osteoarthritis
  • Rheumatoid arthritis
  • Septic arthritis (correct)
  • What is the primary route of spread of bacteria to the joint space causing septic arthritis?

  • Lymphatic spread
  • Direct inoculation by aspiration
  • Hematogenous route (correct)
  • Direct route from adjacent osteomyelitis focus
  • When does cartilage destruction typically start in cases of acute infection that leads to septic arthritis?

    <p>Between 4-6 days</p> Signup and view all the answers

    Which joint is usually most affected by monoarticular septic arthritis?

    <p>Knee</p> Signup and view all the answers

    What imaging modality is more sensitive in detecting early bone and cartilage destruction in patients with septic arthritis?

    <p>CT</p> Signup and view all the answers

    Which of the following is NOT a long-term change seen in imaging of patients with septic arthritis?

    <p>Synovial hypertrophy</p> Signup and view all the answers

    Which imaging finding can be detected within the first 24 hours in patients with septic arthritis?

    <p>Abnormal signal in bone marrow</p> Signup and view all the answers

    Which of the following is a differential diagnosis for septic arthritis?

    <p>Gout</p> Signup and view all the answers

    In imaging, which condition is associated with contrast enhancement around the synovia and joint effusion?

    <p>Pseudogout</p> Signup and view all the answers

    Which type of arthritis is characterized by a suppurative infection of the synovia and synovial fluid?

    <p>Septic arthritis</p> Signup and view all the answers

    In which age group does osteomyelitis most commonly occur?

    <p>Children</p> Signup and view all the answers

    What is the most common etiological agent of osteomyelitis in young adults?

    <p>Staphylococcus aureus</p> Signup and view all the answers

    Which medical condition is NOT associated with an increased risk of septic arthritis?

    <p>Ankylosing spondylitis</p> Signup and view all the answers

    What is the main diagnostic factor to consider in antibiotic treatment for osteomyelitis?

    <p>Serum antibiotic levels</p> Signup and view all the answers

    Which pathogen is most commonly associated with osteomyelitis in neonates?

    <p>Group B streptococci</p> Signup and view all the answers

    What is the recommended antibiotic treatment for adults with postoperative implant infections?

    <p>Vancomycin and ceftazidime</p> Signup and view all the answers

    Which approach is recommended for open drainage in surgical treatment of septic arthritis?

    <p>Posteromedial approach</p> Signup and view all the answers

    What is the most common cause of acute hip pain in the age group of 3-10 years?

    <p>Osteomyelitis</p> Signup and view all the answers

    What type of infection shows a good response to treatment based on prognosis?

    <p>Gonococcal infection</p> Signup and view all the answers

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