Post-traumatic arachnoiditis ossificans of the thoracic spine. A case report with literature review

<div><strong>Background:</strong> Post-traumatic thoracic arachnoiditis ossificans (AO) is extremely rare in clinical practice. The lesion is a rare pathological entity usually confined to the thoracic and high lumbar regions that can cause progressive spinal cord myelopathy.</div> <div><strong>The aim:</strong> To report a case of AO and to report briefly the literature.</div> <div><strong>Case report:</strong> A case of posttraumatic AO secondary to lumbar fixation and decompression surgery for unstable thoracic fractures is reported.</div> <div><strong>Conclusion:</strong> A thoracic computed tomography scan is the best investigation of the diagnosis of arachnoiditis ossificans. Magnetic resonance imaging of the spinal cord and potential coexisting pathology make both necessary.</div>