摘要
Objective To describe the configuration of pedicel-ossified ligament flavum tunnel （PFT） and ligament flavum ossification （OLF） in thoracic spine,further to introduce and evaluate the methods of posterior decompression by dissecting pedicle flavum tunnel （PFT）. Methods Seventy-four patients were diagnosed as thoracic spine ligament flavum ossification and there were 45 male and 29 female with an average age of 51.9 years （31-73）. The CT virtual endoscope （CTVE） and multiplanar co-localization were employed to detect the configuration and connection structures of OLF and to define the construction and the width of PFT.
