Magnetic Resonance Imaging after Posterior Lumbar Interbody Fusion: Value of Early MRI in Diagnosis of Postoperative Spondylitis

  • Setsu Nokitaka
    Department of Orthopedic Surgery, Fukuoka City Hospital, Fukuoka, Japan
  • Saito Taichi
    Department of Orthopedic Surgery, Fukuoka City Hospital, Fukuoka, Japan
  • Saikawa Isao
    Department of Orthopedic Surgery, Fukuoka City Hospital, Fukuoka, Japan
  • Irie Tsutomu
    Department of Orthopedic Surgery, Fukuoka City Hospital, Fukuoka, Japan
  • Tanaka Tetsuya
    Department of Orthopedic Surgery, Fukuoka City Hospital, Fukuoka, Japan
  • Matsuura Suguru
    Department of Orthopedic Surgery, Fukuoka City Hospital, Fukuoka, Japan

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Other Title
  • PLIF後のMRIの検討~椎体の信号変化は術後感染の早期診断に有用か~
  • Value of Early MRI in Diagnosis of Postoperative Spondylitis
  • ~椎体の信号変化は術後感染の早期診断に有用か~

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Abstract

We evaluated the role of magnetic resonance imaging (MRI) in the diagnosis of postoperative spondylitis. MRI is widely used in the diagnosis of infectious diseases of the spine, but signal intensity changes in the vertebral body or endplates are not specific for spondylitis. Eighteen consecutive patients who underwent posterior lumbar interbody fusion (PLIF) were evaluated with MRI 2-3 weeks after operation. Signal intensity changes were frequently observed in asymptomatic patients. In conclusion, MRI is not sufficient in itself for early diagnosis of spondylitis.

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