• Zhongguo Gu Shang · Apr 2010

    [Treatment of thoracolumbar vertebral fractures with posterior short segmental pedicle screw fixation and pedicle screw at the fracture level].

    • Gu Yong-Jie, Hu Yong, Wei-Hu Ma, and Rong-Ming Xu.
    • Department of Spinal Surgery, Sixth Hospital of Ningbo, Ningbo 315040, Zhejiang, China. gyj1982@hotmail.com
    • Zhongguo Gu Shang. 2010 Apr 1;23(4):264-7.

    ObjectiveTo explore the feasibility and clinical effects of posterior short segmental pedicle screw fixation adding pedicle screw at the fracture level in treatment of thoracolumbar vertebral fractures.MethodsFrom September 2005 to September 2007, 82 patients (male 50 and female 32, the age from 18 to 63 years, at mean age of 36 years,the courses of disease from 2 hours to 7 days with an average of 2 days) with thoracolumbar fractures were treated with posterior short segmental pedicle screw fixation adding pedicle screw at the fracture level. According to the AO classification, 25 patients were type A1 fracture, 48 were type A2 and 9 were type B2. According to the ASIA neurological function grading system, 9 patients were grade C, 17 were grade D and 56 were grade E. Reduction and posterolateral fusion were achieved through fixation of the fractured vertebra and the adjacent normal vertebrae with the transpedicle screw.ResultsEighty-two cases were followed up from 12 to 24 months (averaged 18.3 months). All cases achieved bone fusion, without significant lose of the vertebrae body height and implant failure. The anterior body compression and Cobb angle were significantly improved after surgery (P < 0.05). The anterior body compression and Cobb angle did not significantly lose compared with after-surgery ones (P > 0.05). The caudal intervertebral disc height (h/H) were not significantly improved after surgery (P > 0.05). Improvement of one to two grades of neurological function was observed in patients with incomplete neurological injuries.ConclusionPosterior short segmental pedicle screw fixation with pedicle screw at the fracture level is a safe and effective therapeutic option to treat thoracolumbar vertebral fractures, which can help to correct the kyphosis and maintain the reduction, and avoid the over-distraction of the contiguous discs.

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