caa a22 4500 445831898 CHVBK 20180317145317.0 cr unu---uuuuu 170323e20110901xx s 000 0 eng 10.1007/s00586-011-1711-z doi (NATIONALLICENCE)springer-10.1007/s00586-011-1711-z Posterior cervical fixation following laminectomy: a stress analysis of three techniques [Elektronische Daten] [Yang Duan, Hui Zhang, Shao-xiong Min, Li Zhang, An-min Jin] The aim of this study was to compare the following three main fixation techniques: pedicle screw (PS) technique, lateral mass screw (LS) technique, and transarticular screw (TS) technique. A detailed, geometrically accurate, nonlinear C3-C7 FE model had been successfully developed and validated. Then three finite element (FE) models were reconstructed by different fixation techniques following C4-C6 level laminectomy. A compressive preload of 74N combined with a pure moment of 1.8 Nm in flexion, extension, left-right lateral bending, and left-right axial rotation was applied to the models. The results showed that maximum von Mises stress on the fixation devices was much higher in the FE models of TS technique, compared with the models of PS and LS techniques. Furthermore, the screws inserted by TS technique had high stress concentration at the middle part of the screws. Screw inserted by PS and LS techniques had high stress concentration at the actual cap-rod-screw interface. The highest level of maximal stress was obtained with the fixation device of the TS technique. TS technique induces noticeable differences in the stress compared to the posterior cervical fixation technique, regarding the higher stress level on fixation devices. Springer-Verlag, 2011 Laminectomy nationallicence Finite element nationallicence Posterior cervical fixation nationallicence Stress nationallicence Duan Yang Department of Orthopaedics, Zhu Jiang Hospital, Southern Medical University, No. 253, Gongye Big Road, 510282, Guangzhou, Haizhu District, People's Republic of China aut Zhang Hui Department of Orthopaedics, Zhu Jiang Hospital, Southern Medical University, No. 253, Gongye Big Road, 510282, Guangzhou, Haizhu District, People's Republic of China aut Min Shao-xiong Department of Orthopaedics, Zhu Jiang Hospital, Southern Medical University, No. 253, Gongye Big Road, 510282, Guangzhou, Haizhu District, People's Republic of China aut Zhang Li Department of Orthopaedics, Zhu Jiang Hospital, Southern Medical University, No. 253, Gongye Big Road, 510282, Guangzhou, Haizhu District, People's Republic of China aut Jin An-min Department of Orthopaedics, Zhu Jiang Hospital, Southern Medical University, No. 253, Gongye Big Road, 510282, Guangzhou, Haizhu District, People's Republic of China aut European Spine Journal Springer-Verlag 20/9(2011-09-01), 1552-1559 0940-6719 20:9<1552 2011 20 586 https://doi.org/10.1007/s00586-011-1711-z text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s00586-011-1711-z text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Duan Yang Department of Orthopaedics, Zhu Jiang Hospital, Southern Medical University, No. 253, Gongye Big Road, 510282, Guangzhou, Haizhu District, People's Republic of China aut NATIONALLICENCE 700 1- Zhang Hui Department of Orthopaedics, Zhu Jiang Hospital, Southern Medical University, No. 253, Gongye Big Road, 510282, Guangzhou, Haizhu District, People's Republic of China aut NATIONALLICENCE 700 1- Min Shao-xiong Department of Orthopaedics, Zhu Jiang Hospital, Southern Medical University, No. 253, Gongye Big Road, 510282, Guangzhou, Haizhu District, People's Republic of China aut NATIONALLICENCE 700 1- Zhang Li Department of Orthopaedics, Zhu Jiang Hospital, Southern Medical University, No. 253, Gongye Big Road, 510282, Guangzhou, Haizhu District, People's Republic of China aut NATIONALLICENCE 700 1- Jin An-min Department of Orthopaedics, Zhu Jiang Hospital, Southern Medical University, No. 253, Gongye Big Road, 510282, Guangzhou, Haizhu District, People's Republic of China aut NATIONALLICENCE 773 0- European Spine Journal Springer-Verlag 20/9(2011-09-01), 1552-1559 0940-6719 20:9<1552 2011 20 586 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer