Rostral Mandibular Fracture Research Articles

Rostral Mandibular Fracture and Dentoalveolar Trauma Secondary to Climbing Stairs With a Foreign Object in the Mouth in Four Dogs.

Rostral mandibular injuries present unique challenges for repair. The presence of strategically important teeth which occupy a large volume of the mandible, multiple tooth roots and the mental neurovascular bundle all combine to limit treatment options that serve to preserve the form and function of the involved structures. This case series describes the approach to treatment for rostral mandibular trauma seen in four dogs with a unique etiology that has not been previously described.

Successful Treatment Using Wire-reinforced Interdental Splint for a Puppy with Rostral Mandibular Fractures

Successful Treatment Using Wire-reinforced Interdental Splint for a Puppy with Rostral Mandibular Fractures

External coaptation of rostral mandibular fractures in calves

Six cases of rostral mandibular fracture with considerable displacement were treated successfully by external coaptation. Four cases were simple and two were compound fractures. After xylazine sedation and manual reduction...

Interfragmental fixation of rostral mandibular fracture with cerclage wire in a thoroughbred English horse

The patient in this study was a 20-year-old thoroughbred gelding. After clinical and radiographical assessments, a bilateral rostral mandibular body fracture was determined. Fracture stabilization was achieved via a bilateral interfragmentary cerclage wire application. The horse started to use its jaw within 24 h of surgery. Postoperative radiographs were taken until month 6, at different periods, and fracture healing was evaluated. Fixation materials were left in place. Fracture healing occurred with a rostral part malocclusion. The purpose of this study was to give clinical information about mandibular fractures and treatment of these fractures in a horse.

Lingual Arch Bar Application for Treatment of Rostral Mandibular Body Fractures in Cats

To describe a lingual arch bar technique for fixation of rostral mandibular body fractures and report outcome in 16 cats. Original study. Cats (n=16) with rostral mandibular body fracture (10 bilateral, 6 unilateral) just caudal to the canine teeth. Orthodontic wire (Dentaurum® ; 0.9 mm) was used as a lingual arch bar by contouring it to the shape of the lingual side of the alveolar margin, and secured by circum-mandibular wires passed interproximal to teeth. Stability of fixation, occlusion, tolerance to the lingual arch bar, degree of secondary gingivitis/periodontitis, and ability to eat were evaluated clinically, and fracture union was assessed radiographically. The lingual arch bar was well tolerated. Eleven cats without a feeding tube were able to eat within 24 hours. Time to fracture union and appliance removal ranged from 28 to 64 days (mean, 42.5 days). Malocclusion of the rostral part of the fracture occurred in 5 cats; however only 1 required correction. Intraoral stabilization of rostral mandibular fractures using a lingual arch bar is a simple and effective method for the treatment of rostral mandibular fractures just caudal to the canine teeth.

Multiple Skull Fractures in a Captive Fly River Turtle (Carretochelys insculpta): Diagnosis, Surgical Repair, and Medical Management

An adult male Fly River turtle, Carretochelys insculpta, presented with dull mentation and a proptosed right eye due to severe head trauma. Injuries included rostral mandibular, left mandibular, left maxillary, and bilateral orbital fractures. The right orbital fracture was repaired immediately. Radiography and computed tomography (CT) were performed to evaluate the extent of the fractures. The left mandibular fracture was repaired with an external skeletal fixator. The rostral mandibular fracture was repaired with pins and a cerclage wire. The use of CT provided complete evaluation of the skull fractures, was a guide for surgical planning, and allowed for monitoring of fracture healing. The turtle returned to normal behavior 2 months after surgery. The fractures were either healed or almost healed 6.5 months after surgery.

Management of rostral mandibular fractures in the young horse

SummaryRostral mandibular fractures in the young horse can, in the majority of cases, be managed satisfactorily in the field. A technique for the field assessment and repair of such injuries is described here.

Influence of an interdental full pin on stability of an acrylic external fixator for rostral mandibular fractures in dogs.

To determine total stiffness and gap stiffness of an external fixation system in a canine mandibular fracture gap model incorporating a full interdental pin as the only point of rostral fixation in a bilateral type-I external fixator. 10 canine mandibles. Bilateral mandibular ostectomies were performed between premolars 3 and 4. A type-I external fixator incorporating a full interdental pin was placed to stabilize a 0.5-cm fracture gap. Four pin configurations (intact mandibular bodies with fixator; ostectomized mandibular bodies and complete fixator; ostectomized mandibular bodies with caudal pins of rostral fragment cut; ostectomized mandibular bodies with all pins of rostral fragment cut) were tested in dorsoventral bending 5 times on each mandible. The full interdental pin remained intact in all configurations. Total stiffness and gap stiffness were determined for each configuration on a materials testing machine. Total stiffness of intact mandibles was significantly greater than that of ostectomized mandibles, regardless of external fixator configuration. However, total stiffness and gap stiffness were not significantly different among different external fixator configurations applied to ostectomized mandibles. External fixator configurations with only the full interdental pin engaging the rostral fragment were as stiff as configurations that had 2 or 4 additional pins in the rostral fragment for the applied loads. External fixators for rostral mandibular fractures may be rigidly secured with rostral fragment implants applied extracortically, avoiding iatrogenic trauma to teeth and tooth roots.

Miniplate Fixation for Repair of Mandibular and Maxillary Fractures in 15 Dogs and 3 Cats

Maxillofacial miniplates and screws were used for skeletal fixation in 15 dogs and 3 cats that sustained a variety of mandibular and maxillary fractures. These implants were used as neutralization or buttress fixation in 11 caudal (junction of the ramus with the mandibular body) and 2 rostral mandibular fractures, 4 maxillary fractures, and 2 zygomatic arch fractures. All but one of the fractures healed with appropriate occlusion and excellent function. In one case of a rostral mandibular fracture, soft tissue dehiscence occurred accompanied by a loss of the fixation and subsequent distraction of the bone fragments; reasonable function was obtained by performing a rostral mandibulectomy. Plate contouring and application of the miniplates along the appropriate biomechanical lines of stress was easily performed and permitted the biomechanical principles of tension band fixation to be applied in most cases. Miniplate fixation, either used alone or in combination with other fracture fixation techniques, achieved sufficiently rigid skeletal fixation to provide uncomplicated healing and good to excellent functional and cosmetic results in 14 dogs and 3 cats.

Lag Screw Fixation of Rostral Mandibular Fractures in the Horse

Seven cases of rostral mandibular fractures in the horse are reviewed, A lag screw technique for compression and fixation of rostral mandibular fractures is described. The outcome of all seven cases in this series was extremely favorable. Follow‐up inquiries to either referring veterinarians or owners revealed no cases of orthopedic appliance failure. No evidence of persistent mandibular osteomyelitis or delayed dental eruption was noted. The application of lag screw techniques to rostral mandibular body fractures appears to be an effective surgical treatment.