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Diagnostic yield of computed tomography-guided bone biopsy and clinical outcomes of tuberculous and pyogenic spondylitis

  • Joo, Eun-Jeong (Division of Infectious Diseases, Department of Internal Medicine, Kangbuk Samsung Hospital, Sungkyunkwan University School of Medicine) ;
  • Yeom, Joon-Sup (Division of Infectious Diseases, Department of Internal Medicine, Kangbuk Samsung Hospital, Sungkyunkwan University School of Medicine) ;
  • Ha, Young Eun (Division of Infectious Diseases, Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine) ;
  • Park, So Yeon (Division of Infectious Diseases, Department of Internal Medicine, Hallym University Kangdong Sacred Heart Hospital) ;
  • Lee, Chong-Suh (Department of Orthopedic Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine) ;
  • Kim, Eun-Sang (Department of Neurosurgery, Samsung Medical Center, Sungkyunkwan University School of Medicine) ;
  • Kang, Cheol-In (Division of Infectious Diseases, Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine) ;
  • Chung, Doo-Ryeon (Division of Infectious Diseases, Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine) ;
  • Song, Jae-Hoon (Division of Infectious Diseases, Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine) ;
  • Peck, Kyong Ran (Division of Infectious Diseases, Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine)
  • Received : 2013.02.06
  • Accepted : 2013.12.13
  • Published : 2016.07.01

Abstract

Background/Aims: This study aimed to evaluate the efficacy of computed tomography (CT)-guided bone biopsy for the diagnosis of spinal infection and compared the clinical outcomes between tuberculous and pyogenic spinal infections. Methods: The retrospective cohort study included patients who received CT-guided bone biopsy at a tertiary hospital over the 13 years. Results: Among 100 patients, 67 had pyogenic spondylitis and 33 had tuberculous spondylitis. Pathogens were isolated from bone specimens obtained by CT-guided biopsy in 42 cases, with diagnostic yields of 61% (20/33) for tuberculous spondylitis and 33% (22/67) for pyogenic spondylitis. For 36 culture-proven pyogenic cases, Staphylococcus aureus was the most commonly isolated organism. Patients with pyogenic spondylitis more frequently presented with fever accompanied by an increase in inflammatory markers than did those with tuberculosis. Among all patients who underwent surgery, the incidence of late surgery performed one month after diagnosis was higher in patients with tuberculous infection (56.3%) than in those with pyogenic disease (23.3%, p = 0.026). Conclusions: Results obtained by CT-guided bone biopsy contributed to prompt diagnoses of spinal infections, especially those caused by tuberculosis. Despite administration of anti-tuberculous agents, patients with tuberculous spondylitis showed an increased tendency to undergo late surgery.

Keywords

References

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