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To validate the safety and effectiveness of minimally invasive posterior percutaneous pedicle screw fixation in acute thoracolumbar vertebral fractures with simple anterior spinal column injury.
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History and current related studies Thoracolumbar spinal fractures are frequently seen after trauma because of the biomechanical transitional junction of this structure. The primary treatment method used for traumatic thoracolumbar spinal fracture is posterior pedicle screw fixation, but this method has some disadvantages including severe trauma, extensive bleeding, long rehabilitation time, and long postoperative duration of intractable lumbar stiffness and low back pain. These complications occur mainly because of wide stripping and injury of the paraspinal muscles and peri-articular denervation. Percutaneous pedicle screw external fixation of spine fracture can reduce injury caused by screw insertion into the paraspinal muscles, particularly in the treatment of acute thoracolumbar vertebral compression fracture with simple anterior spinal column injury.
Adverse events We recorded possible adverse events, including wound pain, infection, back muscle pain, spinal cord/nerve injury, screw pull-out, or screw loosening. If severe adverse events occurred, details including the data of occurrence and measures taken to treat the adverse events were reported to the principle investigator and the institutional review board within 24 hours.
Possible biases and management measures Possible biases
Statistical analysis Statistical analysis was performed by a statistician using SPSS 19.0 software (IBM, Amrok, USA), and was conducted following the intention-to-treat principle. Normally distributed measurement data were expressed as the mean ± SD, and minimums and maximums. Non-normally distributed measurement data were expressed as lower quartile (q1), and median and upper quartile (q3). The Wilcoxon matched-pairs signed-ranks test was performed for comparison of the Cobb angle before surgery with the Cobb angle 3 years after surgery, and the McNemar's chi-squared test was used to compare the incidence of adverse reactions. The significance level was α = 0.05.
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32 participants in 1 patient group
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