Group 2 consisted of an anatomical model showing a bone defect, which was intended to be used for substantial instrumentation, pre-operatively. Group 1 consisted of anatomical models with major vascular considerations during surgery. These 4 cases were divided in 3 groups of 3D printed models. Methodsįour complicated cases were selected, reconstructed and printed. Three Dimensional (3D) printed models can aid in effective pre-operative planning by defining the geometry of tumor mass, bone loss, and nearby vessels to help determine the most accurate osteotomy site and the most appropriate prosthesis, especially in the case of complex acetabular deficiency, resulting in decreased operative time and decreased blood loss.
