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Plastic Surgery Research Council

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Use Of 3d Printing And Mirror Image Modeling In Orbital Floor Reconstruction
Ronald Akiki1, Chris Jehle, MD2, Albert S. Woo, MD2.
1The Warren Alpert Medical School of Brown University, Providence, RI, USA, 2Department of Plastic & Reconstructive Surgery, Rhode Island Hospital, Providence, RI, USA.

Introduction: 3D printing is increasingly utilized as a tool to assist in complex craniofacial reconstructions. Herein, we report the use of 3D printed models in the case of an 8-year-old patient with a unilateral complex orbital fracture surgically corrected by open reduction and internal fixation with a resorbable implant. Methods: Two patient-specific orbital models were 3D-printed (figure 1). The first model was a life-size print of the patient's preoperative CT scan. It allowed for easy comparison between the patient's injured left side and the unaffected right side. For the second model, the patient's damaged left orbit was recreated to resemble its uninjured state using mirrored-imaging of the uninjured right side. The model was processed with 3D Slicer and Blender then printed on a Stratasys J750 printer. The final print was sterilized with ethylene oxide gas. Results: The reconstructed orbital construct ultimately served as a sterile intra-operative template to mold a resorbable implant. Post-operatively, the patient had intact vision and was discharged home with no complications. At four-month follow-up, the patient was doing very well without diplopia, headaches or visual problems. Conclusion: We report a case of a successful orbit reconstruction assisted by mirrored-image computer modeling and patient specific 3D printing.


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