Validación de los modelos de impresión 3D paciente específicos para cirugía ortopédica oncológica pélvica mediante estudio en cadáver

Resumo

Pelvic ring tumours are challenging because of the difficulty in obtaining adequate surgical margins. Tools such as surgical navigation or 3D printing for the fabrication of patient-specific surgical positioning templates help in preoperative planning and intraoperative execution. Their correct positioning is essential in complex locations such as the pelvis, so it is necessary to identify positioning errors and the accuracy of these patients pecifictools. Hypothesis and objectives. The main hypothesis of this study is that patient-specific cutting templates (PCPE) obtained by 3D printing are a reliable tool for performing osteotomies in the oncological approach to bone tumours located in the pelvic ring. The objectives are to demonstrate the accuracy of PCPE adapted to the approach routes and to objectify the influence of the anatomical surface on which they are placed, as well as to prove that navigation on PCPE is avalid option for guiding pelvic osteotomies, and that it can constitute a validation method for intraoperative positioning of these osteotomies...