To observe the effects of vertebrae implantation through vertebral arch and Xugu Huoxue Decoction for treatment of thoracolumbar blow out fracture. Methods:From the July of 2006 to the March of 2009, 22 patients with thoracolumbar blow out fracture, underwent fixation of posterior vertebral arch by pedicle screw and implantation vertebrae through vertebral arch and took Xugu Huoxue Decoction. They were followed up time between 3 to 20 months, with an average of 12months. The vertebral height before and after the operation, the angle of Cobb, and the changing of the sagittal diameter of vertebral canal were observed. Results:No fixture failure is seen in the 22 patients after operation during the follow up time. There was no statistical significance in terms of the loss of the vertebral correction. Conclusion:Implantation vertebrae through vertebral arch and Xugu Huoxue Decoction can reconstruct the anterior and middle column, and decompress the vertebral canal and rebuild the vertebral height. As a result, the vertebrae regains its biological stability. Moreover, this treatment has efficiently reduced the internal fixation stress, the risk of the looseness and break of internal fixture and the loss of vertebral height in the long term, therefore, improves heeling of bones.