Ameloblastoma is a histologically benign tumor that behaves aggressively because of its tendency to invade local structures, and it has a high probability of local recurrence. If neglected, ameloblastomas can grow substantially over the course of years, reaching the size of giant ameloblastomas. This large size can lead to deformities in facial appearance and impairments in speaking, swallowing, eating, and breathing.Surgical planning can be challenging because of the extension of the tumor and the consequent reconstructive issues.In this article, we present our experience with the reconstruction of 2 cases of giant ameloblastomas planned on the basis of occlusal casts and acrylic splints. In these patients, computerized planning was rendered complex and potentially inaccurate because of the dimensions of the tumor, the loss of anatomical landmarks, and the loss of occlusal landmarks. The cases were successfully reconstructed, but the technique can be flawed. A 3-dimensional virtual model of the mandible can be used as a template to develop cutting guides for reconstruction with free fibular flaps. This will allow us to overcome limitations, standardize the procedure, and achieve optimal functional and aesthetic results.
References
Nakamura N, Mitsuyasu T, Higuchi Y, et al. Growth characteristics of ameloblastoma involving the inferior alveolar nerve: a clinical and histopathologic study. Oral Surg Oral Med Oral Pathol Oral Radiol Endod. 2001;91:557–562.
Kumar A, Verma A, Baduni A, et al. Ameloblastoma and its malignant transformation: treatment ladder, related syndromes and controversies. International Journal of Contemporary Medical Research. 2017;83:2393–2395.
Moro A, Foresta E, Gasparini G, et al. Ameloblastic carcinoma of the maxilla: a case report and an updated review of the literature. Oncol Lett. 2016;12:4339–4350.
Sweeney RT, McClary AC, Myers BR, et al. Identification of recurrent SMO and BRAF mutations in ameloblastomas. Nat Genet. 2014;46:722–725.
Chaine A, Pitak-Arnnop P, Dhanuthai K, et al. A treatment algorithm for managing giant mandibular ameloblastoma: 5-year experiences in a Paris university hospital. Eur J Surg Oncol. 2009;35:999–1005.
Hidalgo DA. Fibula free flap: a new method of mandible reconstruction. Plast Reconstr Surg. 1989;84:71–79.
Saponaro G, Gasparini G, Cervelli D, et al. Osteoperiosteal free fibula flap as an effective preprosthetic reconstructive option in severe jaw atrophy and oncological resection. Acta Otorhinolaryngol Ital. 2015;35:394–399.
Kraeima J, Glas HH, Witjes MJH, et al. Patient-specific pre-contouring of osteosynthesis plates for mandibular reconstruction: using a three-dimensional key printed solution. J Craniomaxillofac Surg. 2018;46:1037–1040.