3D printing has been used for teaching purposes. Creating models for simulating surgeries. Gong et al presented a workflow for digital planning for surgery and Rendon et al previously presented a low-cost method with acceptable precision. This paper aims to present a case where 3D printing surgical planning was applied for bone graft shape and dimensions. A 16-year-old female patient with a history of bilateral cleft lip and palate has received 6 surgical interventions to treat her congenital pathology. She begins orthodontic management at the age of 6 years and is referred to the plastic surgery service 10 years later, presenting oral and nasal fistula on the nasal floor with mainly liquid leakage. A bone graft was taken and applied from the patient's left iliac crest. the iliac crest is taken and the bone graft is molded Assisted with 3D printed model which is fixed in the premaxilla with a 14-hole linear plate. We proposed a new application for low-cost 3D printed models. Patient specific models have applications in cleft palate bone grafting. We present a case and more studies are required to measure variables as time, graft integration, and patient satisfaction.
Summary: The anatomic position of the auricle leaves it vulnerable to traumatic lesions. In most cases, the best reconstructive outcome is accomplished using a temporoparietal flap with a costal cartilage frame and a partial thickness skin graft. Exceptional cases may require different approaches because the reconstructive goals could be more structural than aesthetic. An important factor in this regard is the mechanical properties of the skin that will provide coverage. This study aimed to share a particular case of total auricular reconstruction assisted by 3D surface imaging and 3D printing in a radial forearm free flap. We present a 58-year-old man with a history of having tympanic barotrauma causing hearing loss, burdening him with the use of auricular devices for hearing assistance. Seven days before presenting for the initial treatment, he sustained ear trauma while performing mechanical reparations in a car. The wheel was activated, causing a total amputation of the right ear. He first went to another hospital‚ where they performed primary closure and then referred him to our unit. The team performed a prelaminated radial forearm free flap assisted by 3D scanning and planning. A detailed comparison between the left ear and the result of the reconstruction was measured and described. The radial forearm prelaminated free flap is a viable structural alternative with the disadvantage of poor auricular definition in some cases.
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