Proper use of MR imaging in internal derangement of the knee (orthopedic surgeon's view)

T. Otani, H. Matsumoto, Y. Suda, Y. Niki, M. Jinnouchi

Research output: Contribution to journalReview articlepeer-review

7 Citations (Scopus)


MR imaging of the knee is a highly accurate examination in terms of the detection of meniscal tears and cruciate ligament ruptures among internal derangement of the knee. The overall accuracy in more than 2000 published cases reached nearly as high as 90% in meniscal tears, and 94% in anterior cruciate ligament (ACL) and 99% in posterior cruciate ligament (PCL) ruptures. Furthermore, the negative predictive value of the knee MR imaging, the number of true negative examination results divided by the numbers of true negative plus false-negative examination results, reaches almost 100% because of its very low false-negative rate. Therefore, from the orthopedic surgeon's point of view, even though the medical cost becomes a great concern, MR imaging has prime importance in the diagnosis of the internal derangement of the knee.

Original languageEnglish
Pages (from-to)143-145
Number of pages3
JournalSeminars in Musculoskeletal Radiology
Issue number2
Publication statusPublished - 2001 Aug 14


  • Internal derangement of the knee
  • Knee magnetic resonance imaging
  • Magnetic resonance imaging

ASJC Scopus subject areas

  • Orthopedics and Sports Medicine
  • Radiology Nuclear Medicine and imaging


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