Whether different trajectory screw combinations accelerate interbody fusion: a prospective clinical pilot study

doi:10.3969/j.issn.1006-7795.2022.03.024

Abstract

Abstract: Objective To compared these screw locus combinations with traditional pedicle screws and traditional cortical locus screws by clinical analysis to determine the effects of different locus screw combinations on intervertebral stress and fusion rate. Methods In this study, according to different combinations of screw trajectories, we were divided into two groups: traditional cortical bone locus screw and new cortical bone locus combined screw for intraoperative and postoperative data collection. Results In postoperative follow-up, the degree of correction of the new combination was significantly higher than that of the traditional cortical locus screw, but there was no significant difference in symptom score, screw loosening and screw breakthrough during postoperative follow-up.In terms of fusion rate, the ratio of postoperative interbody fusion score of 2 was 14% higher with the new combination than with the traditional cortical locus screw.The new locus screw combination was significantly superior to the traditional cortical locus screw in the correction of lumbar lordosis. Conclusion The fusion rate of the new combination is higher than traditional trajectory of cortical bone screws, and can provide greater lumbar lordosis correction, have certain prospect of clinical use.

Key words: cortical bone trajectory screw, pedicle screw, new trajectory combination, posterior lumbar fusion

CLC Number:

R681

Zhang Tianqing, Li Yue, Guan Li, Hai Yong, Zhang Congxiao, Liu Yuzeng. Whether different trajectory screw combinations accelerate interbody fusion: a prospective clinical pilot study[J]. Journal of Capital Medical University, 2022, 43(3): 480-489.

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URL: https://journal03.magtech.org.cn/Jweb_sdykdxxb/EN/10.3969/j.issn.1006-7795.2022.03.024

https://journal03.magtech.org.cn/Jweb_sdykdxxb/EN/Y2022/V43/I3/480

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