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KMID : 1103720140710060296
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Journal of the Korean Society of Radiology
2014 Volume.71 No. 6 p.296 ~ p.303
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MRI Findings on Iatrogenic Spinal Infection Following Various Pain Management Procedures
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Kim Yu-Jin
Lee Jee-Young
Kim Bong-Man
Kim You-Me
Min Sang-Hyuk
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Abstract
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Purpose: The aim of this study was to investigate and report magnetic resonance imaging (MRI) findings of iatrogenic spinal infection (ISI).
Materials and Methods: We retrospectively reviewed the clinical and MRI findings on 18 patients diagnosed with ISI. The MRI findings were evaluated for the number of spinal segments showing inflammation in the longitudinal span and affected vertebral bodies and discs, the presence of abscess in the epidural or paravertebral space, paravertebral myositis, and skip lesions.
Results: Among the 18 patients, the range of the longitudinal span of spinal inflammation was 2-11 (mean = 5.84) vertebral segments. 17 of the 18 patients had three or more contiguous vertebral segments. The osteomyelitis and disc destruction was apparent in 77.8% and 66.7% of the patients, and 78% of patients with osteomyelitis showed involvement of one or two vertebrae; 91.7% of patients with disc destruction showed involvement of single disc. The incidence of epidural or paravertebral abscesses, and paravertebral myositis were 88.9%, and 94.4%. There were no spinal skip lesions.
Conclusion: MRI findings of those are wide longitudinal span of infection, involvement of no more than one or two vertebral bodies and a single disc, large abscesses, extensive myositis and no skip lesions, can be a useful ISI-diagnostic tool.
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KEYWORD
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Iatrogenic Disease, Spine, Infection, Magnetic Resonance Imaging
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