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Complete posterior migration of intact vertebral body in spinal tuberculosis

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Author(s): Sridhar Krishnamurthy | Krishnan Prasad

Journal: Neurology India
ISSN 0028-3886

Volume: 57;
Issue: 4;
Start page: 483;
Date: 2009;
Original page

Keywords: Migration | posterior elements | spinal tuberculosis

ABSTRACT
Spinal tuberculosis most commonly presents as a paradiscal lesion involving the disc space and adjacent vertebral bodies. Atypical forms of spinal tuberculosis have been described and are most often a result of posterior element involvement. The authors report a patient, who presented with complete posterior migration of an intact vertebral body, a complication of spinal tuberculosis that has not been reported till date. A 12-year-old girl with history of pulmonary tuberculosis presented with progressive paraparesis and back pain. Plain X-rays and MRI revealed that the L2 vertebral body had migrated posteriorly into the spinal canal, without significant movement of the posterior elements. The vertebral body was normal, with no erosion or bone loss. However, bilateral pedicle and facet joint involvement was seen. The neural elements were decompressed through an anterolateral retroperitoneal approach and the spine reconstructed. The authors present this rare manifestation of spinal tuberculosis and discuss the possible mechanisms of this presentation.
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