Symphyseal Sparing Rostral Mandibulectomy

Diagnosis and Treatment of an Odontogenic Epithelial Tumor in a Dog With Features of Squamous Odontogenic Tumor

“…[15][16][17][18]20,31,30 This case illustrates the importance of computed tomography (CT) for tumor excision surgical planning. 24,25,33 In this case, CBCT was utilized. The CBCT machine was available in the operatory at the time of the surgery, thus eliminating the need for a separate anesthesia prior to the mandibulectomy.…”

“…Based on the human literature, the margins of the rostral mandibulectomy in this patient were planned to be curative, with a narrow margin, and to spare the mandibular symphysis and the middle mental nerves. 25,35 Despite incomplete histological margins, there has been no recurrence to date. It is possible that clean but narrow margins were achieved after the mandibulectomy when additional bone was removed from the lingual margin with a diamond bur.…”

“…Preservation of the caudal portion of the mandibular symphysis and middle mental foramina allowed for 5 mm surgical margins, satisfied the owner's concerns for function and cosmesis, and aimed to reduce postsurgical morbidity. 24,25 The surgical area was clipped and aseptically prepared for surgery. The left rostral mandibulectomy was achieved utilizing a scalpel, a carbide bur t on a high-speed water cooled handpiece, u and a dental elevator.…”

Bilateral Rostral Mandibulectomy in the Dog

“…4 Bilateral rostral mandibulectomy also may be performed more caudally with the ostectomy incisions made distal to the third or fourth premolar teeth but the frenulum of the tongue should be preserved because it contains the genioglossus muscle. 4 Bilateral rostral mandibulectomy also may be performed more caudally with the ostectomy incisions made distal to the third or fourth premolar teeth but the frenulum of the tongue should be preserved because it contains the genioglossus muscle.…”

“…11 Satisfactory aesthetics, prehension, and function are expected with bilateral rostral mandibulectomy at the level of the interdental space of the third and fourth premolar teeth or the fourth premolar and first molar teeth. 4 A more caudal mandibulectomy increases the incidence of mandibular and sublingual salivary duct transection (Fig. 12), and mandibular instability may occur.…”