• Wai-Mun Yue and Seang-Beng Tan.
• Department of Orthopaedic Surgery, Singapore General Hospital, Singapore. yuewm@singnet.com.sg
• Spine. 2003 Jun 1;28(11):E209-11.

Study DesignA case report of distant discitis and vertebral osteomyelitis involving skip levels after caudal epidural steroid injection.ObjectivesTo report and investigate the occurrence of distant infective discitis and vertebral osteomyelitis involving skip levels after epidural injection.Summary Of The Background DataDistant discitis and vertebral osteomyelitis is a serious but rare complication after epidural injection. A case involving skip levels and without the occurrence of epidural abscess formation has apparently not been previously reported in the literature.MethodsAn elderly woman presenting with clinical, radiologic, and magnetic resonance imaging evidence of spinal canal stenosis involving L3/4 and L4/5 levels and degenerative spondylolisthesis of the L4/5 level was given an epidural injection of steroids and lignocaine via the caudal route. A month later, she presented with worsened low back pain, elevated serum acute phase reactants, and plain radiographic evidence of L4/5 infective discitis. Magnetic resonance imaging and microbiologic examination of computed tomographically guided biopsy specimens confirmed infective discitis involving L2/3 and L4/5 intervertebral levels, together with adjacent vertebral osteomyelitis.ResultsThe patient was successfully treated with antibiotics targeted at Pseudomonas aeruginosa, which was isolated in the culture of the biopsy specimens. Follow-up improvements in the clinical condition, serum acute phase reactants levels, radiographs, and magnetic resonance imaging were noted.ConclusionsDistant discitis and vertebral osteomyelitis involving skip levels and without the occurrence of epidural abscess formation is a serious but rare complication after epidural injection.

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