Custom 3D-Printed Hemipelvis Reconstruction After Internal Hemipelvectomy and Failed Revision Arthroplasty: Ilium Fixation Achieves Excellent Mid Term Survival

Description

In this presentation, Nathaniel Hinckley from the Mayo Clinic in Arizona discusses innovative strategies for custom 3D printed hemipelvis reconstruction following the removal of internal hemipelvic tumors and in cases of failed hip arthroplasties. He highlights the evolution from traditional reconstructive techniques, which were burdened by extensive surgical procedures and associated complications, to utilizing advanced 3D printing technology that allows for more precise, patient-specific implant designs.



Hinckley outlines the clinical approach to building these custom implants, starting from 3D models derived from CT scans, enabling tailored surgical strategies that minimize excess tissue removal and focus on maximizing the use of the remaining ilium for stable fixation of the implants. He details the surgical planning process, including oncologic resections and the significance of achieving a solid fixation with optimized resection plans.



The midterm outcomes of their retrospective study, covering 27 patients from 2008 to 2019, showed impressive retention rates of the implants, fostering confidence in this strategy for improving patient outcomes. Despite some patients experiencing complications necessitating reoperations, particularly related to wound management, the overall findings suggest a promising direction in custom pelvic reconstructions and invite further research into long-term efficacy and patient quality of life assessments.



The presentation culminates with an acknowledgment of the need for ongoing exploration of these techniques to solidify their role in orthopedic oncology and reconstructive surgery.

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