Chinese Journal of Clinical Anatomy >
Measurements anatomical paremeters related to the L5/S1 axial intervertebral fusion based on 3D reconstruction technology
Received date: 2013-11-20
Online published: 2014-06-04
Objective To provide the anatomical basis for the surgery approach of the axial lumbosacral interbody fusion. Methods The data of spiral CT scan images were imported into the Mimics 10.01 software in Dicom format, and the sacral vertebrae 3D geometric mesh model was obtained after 3D treatment. Finally, the Geomagic studio 12 was used to simply optimize the 3D model after importing in the STL format, and measure the relevant data. Results In the AxiaLIF surgery which use the coccygeal tip as the entrance point and place the axial screw on the axle of lumbosacral vertebral bodies, the distance between the coccygeal tip and the entrance of the nail was (101.7±9.5)mm and (100.2±9.0)mm in Chinese males and females, respectively(P＞0.05). In the AxiaLIF surgery which use the coccygeal incisures as the entrance point and place the axial screw on the middle column of the lumbosacral vertebrae, the distance between the coccygeal incisures and the entrance of the nail was (82.4±9.5)mm and (83.1±10.6)mm in Chinese males and females, respectively(P＞0.05). In thetwo different surgical approaches of the AxiaLIF, the vertical distance between needle and S3/4, are (24.4±5.3)mm and (14.5±2.8)mm respectively in men (P<0.05), and are (27.0±5.6)mm and (17.0±3.8)mm respectively in women (P<0.05). There are significant statistical difference between the data of male and female groups. Conclusions There is high risk on the AxiaLIF which use the coccygeal tip as the entrance point. The new AxiaLIF surgery, which use the coccygeal incisures as entrance point and place the axial screw on the middle column of lumbosacral vertebra, is in the safety range of the presacral space, and needs further verified by biomechanical study.
LI Yang , LIU Yan , SUN Chao , DING Zi-Hai , TUN Li-Jun . Measurements anatomical paremeters related to the L5/S1 axial intervertebral fusion based on 3D reconstruction technology[J]. Chinese Journal of Clinical Anatomy, 2014 , 32(3) : 280 -283 . DOI: 10.13418/j.issn.1001-165x.2014
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