Orthopedics Book

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Osteomyelitis CT

Aka: Osteomyelitis CT, CT in Suspected Osteomyelitis
  1. Indications
    1. Not indicated as first line Osteomyelitis imaging
    2. Other modalities are preferred for Osteomyelitis imaging (e.g. Osteomyelitis MRI, Osteomyelitis Bone Scan)
      1. Standard CT has low efficacy in Osteomyelitis
      2. Osteomyelitis PET Scan has high efficacy (however very expensive)
    3. Indicated in identifying sequestra (islands of necrotic bone)
    4. May be used in defining Vertebral Osteomyelitis involvement
    5. Consider for CT-guided bone biopsy
  2. Findings
    1. Cortical Bone osteolysis
    2. Small gas foci
    3. Foreign body
    4. Sequestra (islands of necrotic bone)
  3. Efficacy
    1. Test Sensitivity: 24-67% in Diabetic Foot Osteomyelitis
    2. Test Specificity: 50% in Diabetic Foot Osteomyelitis
  4. References
    1. Pineda (2006) Infect Dis Clin North Am 20:789-825 [PubMed]
    2. Termaat (2005) J Bone Joint Surg Am 87: 2464-71 [PubMed]

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