Chinese Journal of Clinical Anatomy >
Experimental study on accurate placement of the lumbar pedicle screws assisted by 3D printing navigation module
Received date: 2014-03-31
Online published: 2014-06-04
Objective To study individualized navigation module that can realize the accurate placement of the minimally invasive lumbar pedicle screws based on digital design and 3D printing technology. Methods 37 cases of the normal human lumbar (L1~L5) 3D model were reconstructed in our study. Navigation bars were designed through the pedicle center. Based on the navigation bars, navigation modules were produced by Boolean Operation. The entities of navigation modules and lumbar spine specimens were built by using 3D printing technology. Then, pedicle screws assisted by navigation modules were implanted. Finally, the anchor point,orientation and position of the screws were observed. Results Navigation modules were used in 228 cases of pedicle screws implantation. The anchor point and orientation of the screws were all consistent with virtual schemes. The position of pedicle screws were good and none of the screws worn out the pedicle cortex. Conclusion By means of digital design and 3D printing navigation module, accurate placement of individualized minimally invasive lumbar pedicle screws can be realized.
Key words： Digital design; 3D printing; Navigation module; Lumbar spine; Pedicle screws
YAN Bin , ZHANG Guo-Dong , TUN Zhang-Lin , HU Jing , YANG Xiang , HUANG Wen-Hua . Experimental study on accurate placement of the lumbar pedicle screws assisted by 3D printing navigation module[J]. Chinese Journal of Clinical Anatomy, 2014 , 32(3) : 252 -255 . DOI: 10.13418/j.issn.1001-165x.2014
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