Three Dimensional Simulations in Real Time for Personalized Drug Release Prosthesis Used in Lumbosacral Rehabilitation
Authors: Stamate Monica Cretan , Stamate Ciprian 
Published: June 2014

This paper presents a theoretical method for simulation and three-dimensional reconstruction of the anatomical elements of the spine in order to achieve hydrogel disc prosthesis by 3D printing. For these simulations are used computed tomography (CT) scan image and AutoCAD reconstruction program, to provide high quality prediction of the 3D spine structures appearance and design the patient specific prosthesis model. After initial registration, the internal surface of L5, S1 vertebras and intervertebral disc at the lumbosacral spine region was individualized from the CT image. Then, the contour of the anatomic structures on the CT image was modified manually or adjusted automatically according to AutoCAD possibilities, to drive the volume simulation of vertebras and intervertebral disc. Three-dimensional simulations of the adjacent vertebrae, intervertebral disc and vertebral disc contact areas are used to achieve a customized prosthesis automatically by 3D printing method. This planning system is attractive and very useful to design personalized prosthesis and has potential for clinical practice to establishing the severity of spine disorders.

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