Cancellous Tibial Bone Graft for Malunion after Mandibular Reconstruction in Head and Neck Cancer.

OBJECTIVES/HYPOTHESIS: While nonunion after mandibular reconstruction for head and neck surgery is rare, literature exploring management is scarce. Our primary objective was to determine success rates of tibial bone graft (TBG) in achieving mandibular union. Secondary objectives include determining factors that contribute to failure of TBG. STUDY DESIGN: Retrospective Chart Review. METHODS: Retrospective chart review between January 1, 2008 and December 31, 2018. Patients who underwent a mandibulotomy or mandibulectomy with osteocutaneous free flap reconstruction were identified. Patients who were pursuing dental rehabilitation, subsequently diagnosed with mandibular nonunion and received a cancellous TBG were assessed. RESULTS: The 15 patients meeting inclusion criteria were mostly male (67%), white (87%), and nonsmokers (67%) with a median age of 64 (IQR = 60-73). Successful union occurred in 13 of 18 (72%) TBGs and the majority (63%) had a partial union documented at the time of surgery. Five patients (83%) who initially had a mandibulotomy achieved union compared to 78% of those with osteocutaneous reconstruction (P = 1.0). Postoperative radiation did not affect rates of union: 80% for both (P = 1.0). Patients with osteoradionecrosis (ORN) achieved union in 67% of cases compared to 75% of cases who did not have ORN (P = .86). There were similar rates of union for those who required perioperative antibiotics for infection and those without infection (67% vs. 75%, P = .86). Dental rehabilitation was achieved in 55% of patients, most commonly dentures. CONCLUSIONS: This study shows that TBG can be used to achieve union for patients with malunion after head and neck cancer reconstruction. We show its successful use within the reconstructive algorithm for patients regardless of postoperative radiation for very small defects. LEVEL OF EVIDENCE: 3 Laryngoscope, 131:1291-1296, 2021.

Preauricular Swelling Mimicking a Tumour: Dissolution of Mandibular Capitulum Following Trauma in a 15-Year Old Child.

AIM: The report is about diagnosis, therapy, and follow-up of a 15-year old boy, who experienced facial swelling and impaired mouth opening after a sport accident. CASE REPORT: Diagnosis of mandibular damage was delayed due to inadequate clinical investigation and radiography after trauma and only became clear after a parotid swelling occurred sometime later resulting from the dissolution of the upper part of the articular process. Follow-up control over a period of three years showed a partial restoration of the articular process but some inhibition of mouth opening combined with slight deviation of the mandible to the affected side remained over the years. CONCLUSION: This report reminds us that parotid swelling can be the result of mandibular trauma without a recent history of physical injury to this region. Therefore, the basic standards of radiologic diagnosis should be maintained and the limited restoring capacity of the condylar process in adolescence should be acknowledged.

Luxación mandibular tras endoscopia: una complicación a tener en cuenta / No disponible

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Electric Saw Face Self-Mutilation in a 22-Year-Old Schizophrenic Man: Case Report.

Schizophrenia is a debilitating psychiatric disorder that affects a large segment of the population. It is managed mainly through pharmacotherapy, and family engagement is mandatory in the process. We present a case of self-mutilation in a 22-year-old man who cut his mandible with an electric saw, trying to modify his chin to better his appearance.

Postradiotherapy Prosthetic Management of Mandible Reconstructed With Fibular Graft.

Intraoral defects secondary to resection of mandible leading to mandibular discontinuity are very complicated to treat as the muscles exert forces on the residual portion of the mandible. Primarily this leads to disfigurement of the face. These forces also make mastication difficult due to imbalance. Ultimately it leads to poor quality of life for the patient. Apart from that the clinical outcome and prognosis of prosthetic rehabilitation of such patients is very poor. The composite fibular flap is the preferred donor site for reconstruction of most complex orofacial-mandibular defects. The addition of a skin island allows for absolute tension-free intraoral closure that enhances tongue mobility. After reconstruction with free fibula graft, planning for prosthodontic rehabilitation by various methods can be carried out. Treatment strategy is dependent on the intraoral situation and patient's acceptance. This article reports various treatment considerations for implant retained prosthetic rehabilitation in a patient who had undergone mandibular reconstruction with free fibula flap.

Single stage aesthetic and functional reconstruction of composite facial gunshot wound with a chimeric functioning muscle and fibular osseous flap. Case report and review of the literature.

The current concepts in the aesthetic and functional reconstruction of complex oromandibular defects are presented with a case of a patient with self-inflicted gunshot wound to the face. The patient presented with a 6 cm composite mandibular defect; the buccomandibular and suborbital aesthetic zones of the cheek along with the mucosa lining, and the ipsilateral facial musculature were missing. A rapid prototyping model of the facial skeleton was used to assist in preoperative planning. A single stage reconstruction with two free flaps was planned; a free fibula osseous flap to reconstruct the mandibular defect, and a free chimeric ALT/functioning vastus lateralis muscle. The one skin paddle of the chimeric flap reconstructed the buccomandibular/suborbital zones of the cheek, and the other the lining of the mouth. The functional muscle provided reanimation of the corner of the mouth by coapting the muscle's motor nerve to the ipsilateral marginal mandibular nerve. A good facial contour and reanimation of the mouth with oral continence was achieved, and the patient presented with good social and emotional smile. This first report of combined use of a fibula osseous flap with a chimeric functional ALT/Vastus Lateralis flap suggests that the chimeric flap principle may be used in complex aesthetic and functional challenges of severe facial trauma.

Superolateral dislocation of an intact mandibular condyle into the temporal fossa: case report and literature review.

Temporomandibular joint dislocation refers to the dislodgement of mandibular condyle from the glenoid fossa. Anterior and anteromedial dislocations of the mandibular condyle are frequently reported in the literature, but superolateral dislocation is a rare presentation. This report outlines a case of superolateral dislocation of an intact mandibular condyle that occurred in conjunction with an ipsilateral mandibular parasymphysis fracture. A review of the clinical features of superolateral dislocation of the mandibular condyle and the possible techniques of its reduction ranging from the most conservative means to extensive surgical interventions is presented.

Useful Method for Intraoperative Monitoring of Facial Nerve in a Scarred Bed.

Facial nerve is the main cranial nerve for the innervation of facial expression muscles. Main trunk of facial nerve passes approximately 1 to 2 cm deep to tragal pointer. In some patients, where a patient has multiple operations, fibrosis due to previous operations may change the natural anatomy and direction of the branches of facial nerve. A 22-year-old male patient had 2 operations for mandibular reconstruction after gunshot wound. During the second operation, there was a possible injury to the marginal mandibular nerve and a nerve stimulator was used intraoperatively to monitor the nerve at the tragal pointer because the excitability of the distal segments remains intact for 24 to 48 hours after nerve injuries. Thus, using a nerve stimulator at the operational site may lead to false-positive muscle movements in case of injuries. Using the nerve stimulator to stimulate the main trunk at the tragal point may help to distinguish the presence of possible injuries. A reliable method for intraoperative facial nerve monitoring in a scarred operational site was introduced in this letter.

[Clinical application of titanium plate reconstruction of mandibular defect: 10 years of follow up].

OBJECTIVE: To summarize the postoperative complications of reconstruction of mandible defect with titanium reconstruction plate. METHODS: A total of 111 cases of the mandibular defect caused by various reasons and repaired by titanium reconstruction plate in the Department Oral and Maxillofacial Surgery of the affiliated Hospital of Qingdao University from 2003 to 2012 were collected and followed up. The complications were analyzed. RESULTS: Thirty-seven percent of 111 cases showed long term complications. The titanium fracture was the main complication(16%[18/111]), followed by stress-shielding (9%[10/111]), infection(8%[9/111]), and titanium plate exposure(4%[4/111]). Titanium plate fracture occurred within 8 months and 3 years after surgery. The simple titanium plate reconstruction had the highest rate of plate fracture(30%[15/50]). Stress-shielding in non-vascularized bone graft was more significant than that in vascularized bone graft(P<0.05). When replaced by mini-titanium plate, the stress-shielding effect disappeared gradually. When the retention of mandibular margin height was less than 1 cm with the use of reconstruction plate, the postoperative complications were prone to occur. CONCLUSIONS: Bone graft is the best way to reconstruct mandibular defect, and simple reconstruction plate repair is applied only as a transitional means for high degree of malignancy, obvious recurrence tendency tumor or special reasons such as age etc, which are not suitable for bone graft. The reconstruction plate fixation is not recommended for bone graft, especially non-vascularized bone graft. The retention of mandibular margin with reconstruction plate fixation is open to discussion.

Distribution of traumatic injuries after the installation of complete dentures in adult patients

Aim Describe the location of traumatic lesions of the oral mucosa that develop after the installation of complete dentures, as well as to quantify the number of post-operative controls that are required. A descriptive study was conducted by examining 84 patients who attended the dental center of Universidad de Los Andes, San Bernardo, during the period from July 2012 to July 2013. A sample of 120 edentulous patients was obtained. After the fabrication and installation of the complete dentures, at least 3 post-operative controls were performed and the location of oral lesions was recorded. Documentation of the association between the patient's clinical variables and the appearance of oral lesions during the first 3 controls was performed using a logistic regression. Results For maxillary dentures, 5 post-operative visits were made and 6 controls for mandible dentures. In the upper jaw the anatomical areas of higher incidence of traumatic injuries were: canine fossa (23.9%), average bridle (23.1%), and distobuccal sulcus (20.1%). In the lower jaw, the highest number of lesions were recorded on the anterior lingual flank (16.5%), anterior and posterior lingual flank (13.4%), and distobuccal sulcus (12.8%). A significant association was observed between subjects who reported consumption of cholesterol-lowering medications and the development of traumatic lesions of the oral mucosa (OR: 0.25 and 95% CI: 0.055-0.939). The installation of complete dentures does not determine that the treatment has ended. Post-operative controls are needed to assess areas of erythema and ulceration.

Objetivo Describir la ubicación y frecuencia de las lesiones traumáticas de la mucosa oral que se generan después de la instalación de las prótesis dentales completas, y cuantificar el número de controles postoperatorios necesarios. Se realizó un estudio descriptivo, examinando a 84 pacientes que asistieron al centro dental de la Universidad de Los Andes, durante el período comprendido entre de julio de 2012 y julio del de 2013. Se obtuvo una muestra de 120 pacientes edéntulos. Después de la fabricación e instalación de las dentaduras completas se realizaron por lo menos 3 controles postoperatorios y la localización de las lesiones orales fue registrada. La documentación de la asociación entre las variables clínicas de los pacientes y la aparición de lesiones orales durante los 3 primeros controles fue realizado por medio de una regresión logística. Resultados Para prótesis maxilar 5 visitas de controles postoperatorios fueron realizados y 6 para mandibulares. En el maxilar superior las zonas de mayor incidencia de lesiones traumáticas fueron: fosa canina (23,9%), flanco medio (23,1%) y distovestibular del surco (20,1%). En la mandíbula se registraron mayor frecuencia de las lesiones en el flanco lingual anterior (16,5%), anterior y posterior (13,4%) y distovestibular del surco (12,8%). Una asociación significativa se observó entre los sujetos que reportaron consumo de medicamentos reductores del colesterol y el desarrollo de las lesiones traumáticas de la mucosa oral (o: 0,25 e IC: 0,055-0,939). La instalación de las prótesis dentales completas no determina que el tratamiento haya terminado. Los controles postoperatorios son necesarios para evaluar las áreas de eritema y ulceración.

A new classification for mandibular defects after oncological resection.

No universally accepted classification system exists for mandibular defects after oncological resection. Here, we discuss the scientific literature on classifications for mandibular defects that are sufficiently presented either pictorially or descriptively, and propose a new classification system based on these findings. Of 167 studies included in the data analysis, 49 of these reports sufficiently described the defect for analysis. These reports were analysed for classification, reconstruction, size of defect, number of osteotomies needed, and complications. On the basis of these findings, a new classification is proposed based on the four corners of the mandible (two angles and two canines): class I (lateral), class II (hemimandibulectomy), class III (anterior), and class IV (extensive). Further classes (Ic, IIc, and IVc) include condylectomy. The increasing defect class relates to the size of the defect, osteotomy rate, and functional and aesthetic outcome, and could guide the method of reconstruction.

Nuances and Pearls of the Free Fibula Osteoseptocutaneous Flap for Reconstruction of a High-Energy Ballistic Injury Mandible Defect.

UNLABELLED: A clinical case demonstrating the use of a free fibula osteoseptocutaneous flap for reconstruction of a high-energy ballistic mandible defect is detailed. The surgical videos highlight key nuances and pearls of flap design, harvest, dissection, and execution of microsurgical anastomosis. Attention is also given to preoperative surgical planning and postoperative care. CLINICAL QUESTION/LEVEL OF EVIDENCE: Therapeutic, V.

Management of combat-related facial injuries.

INTRODUCTION: Combat-related facial injuries involve various lesions of the mouth, the eye sockets and the facial bones. The goal of this study is to precise the particularities of these affections and their therapeutic management. METHODS: A retrospective study was performed about 56 cases of combat-related facial injuries over a period of 5 years (2010 - 2014). RESULTS: Our study included 56 male patients with an average age of 29 years (20-37). The trauma occurred during a real security intervention in all the cases. It was isolated in 18 cases and associated to other lesions in 38 cases. Clinical examination revealed facial edema (57%), facial cuts and lacerations (74%), broken teeth (14%), nasal deformation (26%), skin defect (16%) and periorbital ecchymosis (32%). The diagnosis retained after clinical examination and imaging exams were:  fractures of the mandible (34 cases), of the eye sockets (18 cases), of the nasal bones (15 cases), parotid gland injury (5 cases) and facial arterial injuries in (24 cases). The treatment was surgical in all the cases: stabilization of fractured segments (43 cases), suture of facial and vascular lacerations (51 cases), reduction of nasal fractures (15 cases), and reposition of teeth dislocations (35 cases). The evolution was good in 34 cases. The functional sequelae noted were ophthalmic (7 cases), dental abnormal occlusions (11 cases), residual trismus (4 cases) and facial palsy in 2 cases. CONCLUSION: Combat related facial injuries must be diagnosed and treated early to prevent the functional and, sometimes, life-threatening damages dues to those lesions.

Traumatic tracheostomy and spent bullet aspiration after a gunshot injury: a case report.

Penetrating tracheal injuries are rare. Even rarer is the finding of intrabronchial foreign bodies caused by penetrating objects. We report a patient who experienced a gunshot injury to the trachea and mandible. The tracheal wound was debrided and used as a tracheostomy; a spent bullet in the bronchial tree was missed on initial evaluation but later successfully retrieved bronchoscopically. Spent bullet aspiration is a very rare occurrence. A careful examination of radiographs is essential to aid with the diagnosis. Flexible bronchoscopy is the best means of bullet retrieval. Management of any associated injuries is made easier after the airway is secured.

Interrami intraoral fixation technique for severe mandibular rifle fragmented bullet injury management.

Interrami intraoral Kirschner wire fixation technique is presented for the reduction, stabilization, and immobilization of a pulverized and avulsed lower jaw caused by rifle fragmented bullet injuries. This indirect mandibular war injury fixation technique was tolerated by the patients and tissue more than any indirect external fixation. In addition, it is easier than open reduction using large bone plates for disrupted ballistics mandibular injury defects. An interrami intraoral fixation is appropriate for severely disrupted mandibular hard and soft tissues, and has been adapted in cases of mass casualties and limited resources. Benefits of use include limited hospital beds and fewer follow-up visits. Rifle fragmented bullet injuries need more attention for several reasons: not only because of the higher mortality and devastating nature of the injuries, but also because these injuries are responsible for an unreported type of bullet biomechanism wounding in the craniofacial region. In turn, this necessitates specialized victim management. The survival rates depend on immediate proper execution of airway, breathing, and circulation, which become more complicated as it relates to airway compromise and oropharyngeal hemorrhage resuscitation. Survival is predicated on the implementation of feasible, sensible, life-saving techniques that are applied at the appropriate time.

Pseudoaneurysm of the superficial temporal artery following penetrating trauma.

Pseudoaneurysm of superficial temporal artery (STA) is an uncommon complication of blunt and penetrating trauma. It accounts for only 1% of all traumatic aneurysms. Most pseudoaneurysms of STA present as a painless pulsating mass, and its diagnosis can be made with physical examination and ultrasound or computed tomography angiogram. The treatment of choice is ligation and resection. This report includes a review of the anatomy, histopathology, etiology, diagnosis, and treatment options for STA pseudoaneurysm and presents a very rare documented case of STA pseudoaneurysm following penetrating trauma that was presented to the hospital with severe hemorrhage, and surgical resection of the lesion mandated the external carotid artery to be exposed for proximal control.