Using a Low Cost 3D Printer for Pre-Contouring Orbital Implants in Children with Floor and Rim Fractures
Mitchell Strominger; Kayva Crawford; Mark Vecchiotti; Andrew Scott
Tufts Medical Center
Introduction: Orbital reconstruction following injury can be challenging. Recently the use of 3D printing to model the orbit has aided in understand the extent of the damage and planning repair. However these models can be costly. Low cost printers are now becoming available and their efficacy is being demonstrated in the adult population. We report our experience using this technology in pediatric orbital rim and floor fractures.
Methods: 5 pediatric patients with orbital floor and rim fractures underwent transconjunctival repair with implantation of titanium or resorbable prostheses. These materials were pre-contoured using a low cost 3D printed model of the bony orbits.
Results: The creation of a high fidelity model at a cost of only $7 plus materials allowed precise preoperative fitting of the orbital prosthesis that saved intraoperative time and was more precise than traditional methods. Postoperative outcomes demonstrated rapid healing and excellent structural results.
Discussion: The combination of pre-planning in the repair of orbital fractures by using a low cost 3-D model of the orbit along with pre-contouring both titanium and restorable material is feasible. This saves intraoperative time and allows for a more anatomically accurate fit of the implant.
Conclusion: Using a 3D printed model of the orbits to per-contour implants prior to surgery facilitates insertion and assures a precise fit at a low cost.
References: Callahan AB, Campbell AA, Petris C, Kazim M. Low-cost 3D printing orbital implant templates in secondary orbital reconstructions. Ophthal Plast Reconstr Surg. 2017;33(5):376-380.