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  • Meta-analysis of the long-term efficacy of unilateral versus bilateral screw fixation on thoracolumbar single vertebral fracture

    ObjectiveTo evaluate the long-term effect of unilateral versus bilateral screw placement on thoracolumbar single vertebral fracture by means of meta-analysis.MethodsThe data of China National Knowledge Infrastructure, Wangfang Database, SinoMed, VIP Database for Chinese Technical Periodicals, PubMed, Elsevier Science Direct, EBSCO, Web of Science, and Springer Link were searched by computer, and the literatures related to effect comparison between unilateral and bilateral pedicle screw fixation in thoracolumbar single vertebral fracture were collected, including domestic and foreign published journal literatures and grey literatures such as academic conference reports and dissertations. The retrieval time was from their inception to August 17, 2019. After literature screening, quality evaluation, and data extraction, Stata 12.0 and RevMan 5.0 softwares were used for data analysis.ResultsA total of 12 articles were included, including 7 in English and 5 in Chinese, with a total of 848 patients (424 in the unilateral pediclescrew fixation group and 424 in the bilateral pedicle screw fixation group). The results of meta-analysis showed that: there was no significant difference in any of the main outcome indicators between the two groups, including the ratio of anterior height of fractured vertebra [mean difference (MD)= −0.16%, 95% confidence interval (CI) (−1.20%, 0.88%), P=0.76], postoperative follow-up Cobb angle [MD=−0.17°, 95%CI (−0.50, 0.15)°, P=0.29], postoperative follow-up Visual Analogue Scale score [MD=−0.06, 95%CI (−0.16, 0.04), P=0.24], postoperative follow-up Oswestry Disability Index score [MD=−0.28, 95%CI (−0.66, 0.11), P=0.15], and incidence of complications [relative risk=0.81, 95%CI (0.57, 1.15), P=0.23], but two secondary outcome indicators namely operation time [MD=−33.26 minutes, 95%CI (−51.72, −14.80) minutes, P=0.000 4] in the unilateral pedicle screw fixation group were smaller than those in the bilateral pedicle screw fixation group, whlie there were no statistically significant difference in postoperative length of hospital stay [MD=−1.59 days, 95%CI (−4.53, 1.36) days, P=0.29] and intraoperative blood loss [MD=−74.09 mL, 95%CI (−155.96, 7.77) mL, P=0.08] between the two groups.ConclusionUnilateral and bilateral screw placement of thoracolumbar single vertebral fracture has the same long-term effect, and unilateral screw placement can reduce the number of screw implantation, and shorter operation time, which is more in line with the actual clinical needs.

    Release date:2020-02-24 05:02 Export PDF Favorites Scan
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