TESSYS Technique With Small Grade of Facetectomy Has Potential Biomechanical Advantages Compared to the In-Out TED With Intact Articular Process : An In-Silico Study Jingchi Li West China Hospital/West China School of Medicine for Sichuan University Chen Xu Changzheng Hospital Aliated to the Naval Medical University Xiaoyu Zhang Aliated Hospital of Integrated Traditional Chinese and Western Medicine for Nanjing University of Chinese Medicine Zhipeng Xi Aliated Hospital of Integrated Traditional Chinese and Western Medicine for Nanjing University of Chinese Medicine Mengnan Liu Macau University of Science and Technology Zhongxin Fang Xihua University Nan Wang Aliated Hospital of Integrated Traditional Chinese and Western Medicine for Nanjing University of Chinese Medicine Lin Xie (
[email protected] ) Aliated Hospital of Integrated Traditional Chinese and Western Medicine for Nanjing University of Chinese Medicine Yueming Song West China Hospital/West China School of Medicine for Sichuan University Research Article Keywords: Biomechanical deterioration, Transforaminal endoscopic discectomy, Endoscopic dynamic drill, Facetectomy, Iatrogenic annulus injury Posted Date: April 26th, 2021 Page 1/27 DOI: https://doi.org/10.21203/rs.3.rs-429749/v1 License: This work is licensed under a Creative Commons Attribution 4.0 International License. Read Full License Version of Record: A version of this preprint was published at BMC Musculoskeletal Disorders on July 10th, 2021. See the published version at https://doi.org/10.1186/s12891-021-04504-1. Page 2/27 Abstract Background: The facetectomy was reported as an important procedure in both in-out and out-in (i.e. transforaminal endoscopic spine system (TESSYS)) techniques in the transforaminal endoscopic discectomy (TED), and which was also related to the deterioration of postoperative biomechanical environment and related poor prognosis.