Diagnostic Accuracy of Subligamentous Spread in Magnetic Resonance Imaging

Authors

  • Nittaya Chitrapazt Department of Diagnostic and Therapeutic Radiology, Faculty of Medicine Ramathibodi Hospital, Mahidol University, Bangkok, Thailand
  • Pornpavit Sriphirom Department of Orthopedics, Rajavithi Hospital, Collage of Medicine Rangsit University, Pathum, Thailand
  • Wongsakorn Nontaragchaisorn Department of Orthopedics, Rajavithi Hospital, Collage of Medicine Rangsit University, Pathum, Thailand
  • Patarawan Woratanarat Department of Orthopedics, Faculty of Medicine Ramathibodi Hospital, Mahidol University, Bangkok, Thailand
  • Pramarn Fuangfa Department of Diagnostic and Therapeutic Radiology, Faculty of Medicine Ramathibodi Hospital, Mahidol University, Bangkok, Thailand
  • Suphaneewan Jaovisidha Department of Diagnostic and Therapeutic Radiology, Faculty of Medicine Ramathibodi Hospital, Mahidol University, Bangkok, Thailand

Keywords:

Spinal tuberculosis, Pott’s disease, Subligamentous spread

Abstract

Objective: To evaluate the diagnostic value of subligamentous spread in the spinal tuberculosis. 

Methods: Retrospective review of spinal magnetic resonance images was performed to evaluate the subligamentous spreading in 84 patients. The differentiation of subligamentous spreading in group of spinal tuberculosis and spinal metastasis were analyzed.  

Result: There was statistically significant difference (p-value < 0.05) by univariate and multivariate analyses in parameters of location of the spinal involvement and maximum thickness of subligamentous spread between the groups of spinal TB and spinal metastasis. The presence of subligamentous spread and number of level involved had statistically significant difference by univariate analysis. Each millimeter of increased maximum thickness of subligamentous spread increased the probability of spinal TB about 1.36 times. The sensitivity, specificity, accuracy, positive predictive value and negative predictive value are 78.38%, 59.57%, 67.86%, 60.42%, and 77.78%, respectively.

Conclusions: There was statistically significant difference in the presence of subligamentous spread, number of level involved, maximum thickness, and location of spinal involvement between the groups of spinal tuberculosis and spinal metastasis. Increased maximum thickness of subligamentous spread increases the probability of spinal tuberculosis.

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1.
Chitrapazt N, Sriphirom P, Nontaragchaisorn W, Woratanarat P, Fuangfa P, Jaovisidha S. Diagnostic Accuracy of Subligamentous Spread in Magnetic Resonance Imaging. Rama Med J [Internet]. 2015 Sep. 28 [cited 2024 Dec. 22];38(3):189-96. Available from: https://he02.tci-thaijo.org/index.php/ramajournal/article/view/57146

Issue

Vol. 38 No. 3 (2015): July-September

Section

Original Articles

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Copyright (c) 2015 By the authors. Licensee RMJ, Faculty of Medicine Ramathibodi Hospital, Mahidol University, Bangkok, Thailand

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