A comparison of two techniques: Open and percutaneous biopsies of thoracolumbar vertebral body lesions.

Aim: The purpose of this article is to compare the similarity of initial radiological diagnosis and pathological diagnosis between thoracal and lumbar vertebral bodies and the adequacy and the reliability of open and percutaneous biopsies performed via transpedicular approach in the lesions located in vertebral bodies.
Materials and Methods: Thirty-three patients who had undergone transpedicular biopsy for vertebral body lesions were retrospectively evaluated. Seventeen patients were diagnosed by percutaneous transpedicular biopsy (11 in the lumbar vertebrae, 6 in the thoracal vertebrae). Sixteen patients were diagnosed by open transpedicular biopsy (9 in the lumbar vertebrae, 7 in the thoracal vertebrae).
Results: The similarity ratio between the initial radiological diagnosis and the final pathological diagnosis was 71.4% in the open biopsy and was 69.2% in the percutaneous biopsy (P > 0.05). The similarity ratio between the initial radiological diagnosis and the final pathological diagnosis was 66.7% in the lumbar region and was 77.8% in the thoracal region (P > 0.05). For percutaneous biopsy group, the similarity ratio was 72.7% in the lumbar region and was 66.7% in the thoracal region (P > 0.05). For open biopsy group, the similarity ratio was 62.5% in the lumbar region and 83.3% in the thoracal region (P > 0.05). No complication was observed.
Conclusion: Specimen adequacy of open biopsy was higher than percutaneous biopsy. Particularly, the open thoracal biopsy has provided the highest similarity ratio between the initial radiological diagnosis and the final pathological diagnosis.