Chinese Journal of Tissue Engineering Research ›› 2010, Vol. 14 ›› Issue (26): 4911-4914.doi: 10.3969/j.issn.1673-8225.2010.26.040

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Short-segment transpedicular screw internal fixation combined with vertebroplasty of autologous granular bones in treatment of thoracolumbar burst fractures: A follow-up evaluation of 33 cases

Liu Ping, Xu Hong-guang, Wang Hong, Yang Xiao-ming, Ding Guo-zheng   

  1. Second Department of Orthopedic Surgery, Yijishan Hospital, Wannan Medical College, Wuhu  241001, Anhui Province, China
  • Online:2010-06-25 Published:2010-06-25
  • Contact: Xu Hong-guang, Professor, Second Department of Orthopedic Surgery, Yijishan Hospital, Wannan Medical College, Wuhu 241001, Anhui Province, China xuhg@medmail. com.cn
  • About author:Liu Ping, Associate chief physician, Second Department of Orthopedic Surgery, Yijishan Hospital, Wannan Medical College, Wuhu 241001, Anhui Province, China liupingyjs@163.com
  • Supported by:

    the National Natural Science Foundation of China, No. 30973025*

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Abstract:

BACKGROUND: Short-segment transpedicular screw internal fixation is one of the important methods in treating thoracolumbar burst fracture. However, the formation of intravertebral void during vertebrae reduction and lost of structure integrality of anterior and middle columns lead to fixation failure or correction loss if no effective bone grafting. 

OBJECTIVE: To study the methods and long term results of transpedicular screw internal fixation combined with vertebral plasty of pellet autos bones in treatment of thoracolumbar spine fracture.

METHODS: Thirty-three patients with thoracolumbar spine fracture were treated with short-segmental transpedicalar screw internal fixation combined with vertebral plasty of pellet autos bones. X-ray examinations were done preoperatively. The change of compressed ratios of the anterior and posterior edges of vertebral body and the middle heights of the injured vertebra, as well as the improved Cobb angle were observed respectively.

RESULTS AND CONCLUSION: The mean value of anterior compressed ratios, middle heights compressed ratios and Cobb angle were obviously decreased postoperatively than that of preoperatively (P < 0.05), which had no statistical significance compared with immediately after operation (P > 0.05). According to standard of American Spinal Cord Injury Association, the nerve function of 29 cases with incomplete spinal cord injuries reached grade 1 recovery after operation. Related complications were found in all patients. The results demonstrated that transpedicular screw internal fixation combined with vertebral plasty of pellet autos bones can restore the height and strength of vertebral body, improve the reduction effect of vertebral endplate, decrease correction loss, as well as elevate spinal stability.

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