Cases reported "Zygomatic Fractures"

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1/126. Reconstructive surgery for complex midface trauma using titanium miniplates: Le Fort I fracture of the maxilla, zygomatico-maxillary complex fracture and nasomaxillary complex fracture, resulting from a motor vehicle accident.

    maxillofacial injuries resulting from trauma can be a challenge to the Maxillo-Facial Surgeon. Frequent causes of these injuries are attributed to automobile accidents, physical altercations, gunshot wounds, home accidents, athletic injuries, work injuries and other injuries. Motor vehicle accidents tend to be the primary cause of most midface fractures and lacerations due to the face hitting the dashboard, windshield and steering wheel or the back of the front seat for passengers in the rear. Seatbelts have been shown to drastically reduce the incidence and severity of these injuries. In the united states seatbelt laws have been enacted in several states thus markedly impacting on the reduction of such trauma. In the philippines rare is the individual who wears seat belts. Metro city traffic, however, has played a major role in reducing daytime MVA related trauma, as usually there is insufficient speed in traffic areas to cause severe impact damage, the same however cannot be said for night driving, or for driving outside of the city proper where it is not uncommon for drivers to zip into the lane of on-coming traffic in order to overtake the car in front ... often at high speeds. Thus, the potential for severe maxillofacial injuries and other trauma related injuries increases in these circumstances. It is however unfortunate that outside of Metro Manila or other major cities there is no ready access to trauma or tertiary care centers, thus these injuries can be catastrophic if not addressed adequately. With the exception of Le Fort II and III craniofacial fractures, most maxillofacial injuries are not life threatening by themselves, and therefore treatment can be delayed until more serious cerebral or visceral, potentially life threatening injuries are addressed first. Our patient was involved in an MVA in Zambales, seen and stabilized in a provincial primary care center initially, then referred to a provincial secondary care center for further stabilization before his transfer to Manila and then ultimately to our Maxillo-Facial Unit. There was a two week-plus delay in the definitive management because of this. As a result of the delay, fibrous tissue and bone callus formation occurred between the various fracture lines, thus once definitive fracture management was attempted, it took on a more reconstructive nature. Hospital based Oral and Maxillo-Facial Surgeons are uniquely trained to manage all aspects of the maxillo-facial trauma, and their dental background uniquely qualifies them in functional restoration of lower and midface fractures where occlusion plays a most important role. Likewise, their training in clinical medicine which is usually integrated into their residency education (12 months or more) puts them in a unique position to comfortably manage the basic medical needs of these patients. In instances where trauma may affect other regions of the body, an inter-multi-disciplinary approach may be taken or consults called for. In this instance, an opthalmology consult was important. In fresh trauma, often seen in major trauma centers (i.e. overseas), a "Trauma Team" is on standby 24 hours a day, and is prepared to assess and manage trauma patients almost immediately upon their arrival in the ER. The trauma team is usually composed of a Trauma Surgeon who is a general surgeon with subspecialty training in traumatology who assesses and manages the visceral injuries, an Orthopedic Surgeon who manages fractures of the extremities, a Neurosurgeon for cerebral injuries and an Oral and Maxillo-Facial Surgeon for facial injuries. In some institutions, facial trauma call is alternated between the "three major head and neck specialty services", namely Oral and Maxillo-facial Surgery, otolaryngology-head & neck Surgery and Plastic & Reconstructive Surgery. (ABSTRACT TRUNCATED) ( info)

2/126. Orthodontic treatment of malocclusions caused by facial trauma.

    Assessment and orthodontic treatment of malocclusions caused by traffic accidents were reported. Different methods were employed to reestablish the harmony of the occlusion with consequent good facial appearance. Appliances like the activator and direct bonding techniques were illustrated. Principles and techniques of orthodontics play an important role in the treatment of the malocclusions left untreated at the time of surgical operation for the facial trauma. ( info)

3/126. Simultaneous reconstruction of the area of the temporo-mandibular joint including the ramus of the mandible in a posttraumatic case. A case report.

    A new technique for the simultaneous reconstruction of the glenoid fossa and the ramus of the mandible is described. By combining and adapting procedures already described, the missing bone of the zygomatic arch, temporo-mandibular joint and ramus was replaced in one operation in a post-traumatic case. The indication for this operation is discussed. It is rather limited. The technique can be used for reconstruction of skeletal defects after tumour resection and in congenital aplasias of this region. ( info)

4/126. life-threatening haemorrhage after elevation of a fractured zygoma.

    A 21-year-old man presented with a fractured left zygoma after an alleged assault. The fracture was elevated four days later, at which time he had a brisk left-sided epistaxis. Recovery was uneventful except for a haematoma that was drained a month later. Two weeks after this, he was admitted after having collapsed. He was shocked and bleeding profusely from his nose. He had a further major bleed in hospital and this was treated by tying off the left external carotid artery. He has made an uneventful recovery and investigations have shown no bleeding diathesis. ( info)

5/126. Oculocardiac reflex induced by zygomatic fracture; a case report.

    Oculocardiac reflex has been recognized as the result of mechanical stimulation to the orbital tissue. The authors encountered a case of severe arrhythmia due to oculocardiac reflex in a patient with a zygomatic fracture. Previous health examinations suggested no abnormalities in the heart in his schooldays, and the initial diagnosis of his arrhythmia as complete A-V block due to injury (using ECG and cardiac ultrasonography). Because his arrhythmia did not improve spontaneously, he underwent cardiac pacing. After repair of the fracture, his arrhythmia completely disappeared. The pacemaker was removed on the first postoperative day. The pathogenesis of this rare case will be discussed. ( info)

6/126. Percutaneous osteosynthesis of the zygomatic buttress.

    We describe a technique of percutaneous miniplate osteosynthesis of the zygoma, using the transbuccal approach. It can be used in conjunction with an extraoral approach, or in isolation. Excellent access was achieved to the posterior zygomatic buttress and arch of zygoma, and the infraorbital rim. No complications developed in the two cases presented. This technique is a useful addition to the armamentarium of maxillofacial surgeons. ( info)

7/126. Fixation of a frontozygomatic fracture with a shape-memory staple.

    A simple method using a staple was successfully used to treat a 74-year-old lady with a fractured frontozygomatic suture. ( info)

8/126. Miniplate osteosynthesis and cellular phone create disturbance of infraorbital nerve.

    A 37-year-old man with a zygomatic fracture underwent surgical treatment with reduction of the fracture and osteosynthesis with a miniplate on the infraorbital rim. Postoperatively, he had numbness in the distribution area of the infraorbital nerve, but he also suffered from dysesthesia in the same area during periods when he was using his hand-held mobile phone. After surgical removal of the osteosynthesis plate, the dysesthesia associated with his mobile phone was no longer present. The plate was examined in a setup where we measured the electric current that developed on the surface of the plate under the influence of the magnetic field between the phone antenna and the metal plate. The highest currents measured on the actual plate were 141 mV in air, and 21 mV in saline. These findings indicate that there might have been a correlation between the presence of the miniplate close to the infraorbital nerve, and the dysesthesia experienced by the patient, under the influence of the energy emitted from the cellular phone. ( info)

9/126. C-shape extended transconjunctival approach for the exposure and osteotomy of traumatic orbitozygomaticomaxillary deformities.

    In the treatment of post-traumatic deformities of the orbitozygomaticomaxillary complex resulting from trauma, the most appropriate exposure must be used. The choice of exposures includes the bicoronal approach and the periorbital incisions. When the whole orbitozygomatic complex is malpositioned, the bicoronal approach is desirable; this can be combined with buccal and eyelid incisions. However, the bicoronal approach is complicated by a longer duration of operation time, post-surgical scars that tend to show, and potential damage to the temporal branch of the facial nerve. A new approach using a C-shape extended transconjunctival approach is possible to have one field of vision to osteotomize the frontozygomatic suture, the lateral orbital wall, inferior orbital rim, lateral maxillary buttress, and zygomatic arch. It takes less operating time and the post-surgical scars are shorter than the bicoronal approach. ( info)

10/126. Fracture of the coronoid process: report of a case.

    A case of a fracture of the coronoid process associated with a depressed zygomatic fracture is described. Clinical signs, radiology (3D-CT scan), treatment and follow-up are presented. ( info)
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