Aplicação da tecnologia de impressão 3D no planejamento cirúrgico: um estudo de caso

Abstract

Additive manufacturing (3D printing) has been used in exponential growth in various areas of medicine. Orthopedic lesions can be printed on 3D anatomical models, só images from computed tomography (CT) enables the three-dimensional volumetric reconstruction of the object to be studied. The main objective of this study is to document the process of using additive manufacturing technology to print the anatomical model of a specific clinical case. The present work follows a fourstep methodology in the 3D printing process, namely: Image Acquisition, Image Segmentation, 3D Object Modeling and 3D Model Printing. The 3D printing was performed basically by reading a numeric code (G Code) developed through computer programs CAD (Computer Aided Design) and CAM (Computer Aided Manufacturing), which are capable of segmenting and modeling bones and implants. The technology involved in this type of additive manufacturing is generally realized through thermoplastic materials which after printing will be very useful for both Mechanical Engineering related analyzes and to assist in medical surgical procedures. Thus, it can be said that the study pointed to the importance of implementing 3D printing technology in areas of relevance to society, as exemplified in the medical field, which can easily be positively influenced by the existence of a bone model in surgical planning. Conclusion: The anatomical model printed with ABS material using FDM-type 3D printing technology proves to be an effective tool and able to assist pre-surgical planning of a complex orthopedic injury.