Using methods of the reverse engineering to carry personalised preoperative stabilisers out on the example of vertebrae of human spine

Abstract

Abstract. There is presented the possibility of using modern rapid prototyping methods in the form of reverse engineering on the example of lumbosacral spine of a human spine at the level of L3-L. Reverse engineering techniques were directly used in the generation and processing of point clouds from a real object. The point clouds were generated by using specialised Mimics software and basing on the results of computer tomography and magnetic resonance imaging using. In the next stage of processing, there was the export of the appropriately converted point clouds to STL format, compatible with CAD programs. The reverse engineering process took four steps: digitisation of the real object, using non-invasive imaging techniques (CT, MRI), processing the point clouds from the digitisation stage, construction of a surface model of the real object basing on the processed point clouds, realising of the real object's copy by using rapid prototyping techniques. In the final stage, the model of the complex spinal's part was tested to MES strength analysis.

The influence of the nucleus pulposus on the stress distribution in the natural and prosthetic intervertebral disc

“…Spine is a complex axial structure, which is responsible for carrying loads, body movement and protection of nerve roots. As proposed by Panjabi, it is composed of three interdependent components: passive and active musculoskeletal systems, and neural system [5][6][7]. Active musculoskeletal system is composed of muscles and their tendons surrounding vertebral column.…”

“…However, vertebrae are mostly considered as functional spinal units (FSU) [9]. Moreover, the relation between pelvis and lumbar spine is of importance for whole spine biomechanics and potential health problems [6,7]. Each FSU (Fig.…”

Medical Imaging and 3d Reconstruction for Obtaining the Geometrical and Physical Model of a Congenital Bilateral Radio-Ulnar Synostosis

“…The combination of potential technical and medical sciences has enabled the development of biomedical engineering, especially in the field of medical imaging techniques and typical issues in the field of engineering modelling. The effect of these activities is the ability to obtain threedimensional models, both virtual and physical, of any anatomical structures of living organisms (Skalski & Haraburda, 2009;Karpiński, Jaworski & Zubrzycki, 2016;Kozłowska & Zubrzycki, 2017).…”