The CT and intraoperative observation of pedicel-ossification tunnel in 151 cases of thoracic spinal stenosis from ossification of ligamentum flavum

Purpose The aim of this study is to precisely illustrate the pedicle-ossification tunnel (POT)—a spinal cord-free pathway in upper facet joint en bloc resection, which was reported as a comparatively neurological safer decompression surgery for thoracic ossification of ligamentum flavum (OLF).