THE SAFETY AND DIAGNOSTIC YIELD OF PERCUTANEOUS THORACO-LUMBAR BIOPSY USING A MOTORISED CORE BIOPSY SYSTEM
2014
Objectives: The study goal was to retrospectively evaluate the diagnostic accuracy and complication rates of a fluoroscopically guided motorized core biopsy system in the thoraco-lumbar area. Materials And Methods: The data of fifty eight (58) patients (28 male & 32 female) with an average age of 42.13 years that underwent biopsy of the spine using a motorized core biopsy system between March 2006 and October 2013 (7.7 years) at a level two teaching institution were retrospectively reviewed. Patient characteristics (age, sex), spinal biopsy level, histology, microbiology and fresh tissue polymerase chain reaction (PCR) diagnosis were considered. Results: Of the 58 patients biopsied 7 were excluded: three patients had a biopsy taken intra-operatively, two patients had a cervical spine biopsy, one patient had a psoas abscess and one had biopsy of the sacral spine. 38 Lumbar (74%) & 13 thoracic (25.4%) biopsies were evaluated. One patient (1.9%) had slightly more bleeding warranting insertion of Port-o-vac drain. No pneumothorax, paraesthesiae or penetration of the spinal canal was reported. In 35 of 51 histological examinations a diagnosis was achieved (68%); 19 of 51 had positive MC&S (37%). The most common diagnosis was tuberculosis (n=21) 41%, followed by multiple myeloma (n=4) 7.8%, adenocarcinoma (n=3) 5.8%, lymphoma (n=3) 5.8%, chronic osteomyelitis (n=3)5.8%, leiyomyosarcoma (n=1)1.9% Conclusions: Our results are comparable to published data with an average of 74% histopathological diagnosis and 0–10% complication rate in published literature. We therefore can conclude that the use of motorized core biopsy system is safe and can achieve acceptable diagnostic yield.
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