ISSN:1049-2275    

出版商:OVID    

年代:2002

数据来源: OVID

摘要:

Orbital skeletal injuries are frequently associated with other significant injuries and require a substantial surgical effort to correct. The use of a unified classification of orbital injury may better predict the surgical effort required to correct such injuries and help with future comparisons of results. In an attempt to summarize the principles of reconstruction of the orbital skeleton following trauma and introduce a unified classification system for orbital injuries, a retrospective review of all consecutive orbital reconstructions in a tertiary care teaching hospital was conducted. The nasoethmoidal region was involved in 32%, the zygomatic complex in 50%, and the frontal region in 28% of orbital fractures. Of the orbital walls, four walls were involved in 5%, three walls in 17%, two walls in 30%, and one wall in 53%. Associated ocular and neurologic injury was encountered in 33% and 57% of patients, respectively. Regions of fixation ranged from one to eight. Bone grafts were used in 20% and titanium mesh in 34% of the orbits. In general, the authors recommend an aggressive approach to orbital injuries, addressing all associated injuries simultaneously.

ISSN:1049-2275    

出版商:OVID    

年代:2002

数据来源: OVID

ISSN:1049-2275    

出版商:OVID    

年代:2002

数据来源: OVID

摘要:

Mucoceles arising in the frontal and/or ethmoid sinuses are clinically silent and often involve both the orbit and the anterior cranial fossa extensively. Five patients with advanced mucoceles of the frontal sinus involving the orbitocranial skeleton (OCM), as a result of recurrent sinusitis or trauma, were identified during a 36-month period in a major academic US institution. The range of pathology encountered involved brain herniations, CSF leaks, and extensive orbital involvement. These patients required major reconstructive efforts to restore proper orbital skeletal anatomy and function with the use of multiple calvarial bone grafts. The secondary effects of the pathologic process, such as orbital dystopia, ocular dysfunction, and CSF leak among others, resolved in all patients without further problems. Follow-up by repeat computed tomography and examination scan ranged from 6 weeks to 29 months. Adequate reconstruction of extensive OCMs involves four principles: 1) cranialization of the frontal sinus for adequate intracranial and orbital roof access; 2) complete removal of all mucosal elements from the frontal sinus, orbit, and dura; 3) precise restoration of orbital volume with calvarial bone grafts; and 4) reattachment of the medial canthal ligament to the bone grafts to avoid orbital dystopia. The results of the surgery are gratifying, but long-term follow-up is essential due to the risk of recurrence.

ISSN:1049-2275    

出版商:OVID    

年代:2002

数据来源: OVID

摘要:

Although the osteotome is positioned in close vicinity to the maxillary artery and its branches during ptergomaxillary separation in a Le Fort I osteotomy, postoperative complications from vascular injuries are rare. The following report describes an unusual occurrence of a maxillary artery pseudoaneurysm following a Le Fort I and bilateral sagittal-split osteotomies for correction of mandibular and maxillary asymmetries in a patient with Goldenhar syndrome. This was recognized 8 months after the procedure when the patient developed acute facial swelling and required an emergent angiogram for uncontrolled bleeding. Vascular anatomy in the ptergomaxillary area is reviewed. A level of suspicion of occult vascular injuries in patients with sudden onset of unilateral facial swelling after orthognathic surgery, even months after the procedure, is recommended.

ISSN:1049-2275    

出版商:OVID    

年代:2002

数据来源: OVID

摘要:

Hyaluronic acid is one of the components of synovial fluid. According to what is already well known in national and international biomedical literature, hyaluronic acid in the context of the TMJ serves two important biomechanical tasks. The first is feeding the articular cartilage; the second is lubricating the components of the joint. These two functions served by the same element change each other according to the continuous alternation of values of pressure in the articular cavity.The authors propose to overcome this statement by demonstrating that hyaluronic acid plays a third function in the TMJ, which is the biomechanical function of stabilizing the articular components.

ISSN:1049-2275    

出版商:OVID    

年代:2002

数据来源: OVID

摘要:

Elongation of the styloid process and calcification of the stylohyoid ligament as pathological entities described by Eagle are often reported in the literature. The properly called Eagle's syndrome or stylalgia is characterized by a definite symptoms and etiology, that distinguish it from pathologies with partially overlapping symptoms depending on adjacent anatomical structures. A corrected differential diagnosis is paramount for choosing the most adequate treatment.

ISSN:1049-2275    

出版商:OVID    

年代:2002

数据来源: OVID

摘要:

The authors present the clinical case of a 61-year-old patient with Hand-Schüller-Christian disease associated with multisystemic involvement. The onset of such puzzling symptoms and the extremely rarity of this disease in a patient of such advanced age resulted in a delayed diagnosis and subsequently delayed treatment of the patient.

ISSN:1049-2275    

出版商:OVID    

年代:2002

数据来源: OVID

摘要:

Necrotizing fasciitis of the scalp is a life-threatening condition. WhenAspergillusis the infectious organism, treatment of the wound and salvage of the patient become a formidable challenge. The authors present an extremely rare case of the successful treatment of scalp necrotizing fasciitis combined with osteomyelitis of the calvarium involvingAspergillus.

ISSN:1049-2275    

出版商:OVID    

年代:2002

数据来源: OVID

摘要:

Sclerosing osteomyelitis of Garré is a rare syndrome; the mandible is the most commonly affected bone segment in the cervicofacial region. This chronic disease is characterized by a nonsuppurative ossifying periostitis with subperiosteal bone formation, commonly reactive to a mild infection or irritation. The differential diagnosis must be made with similar clinical conditions with hard mandibular swelling associated with bony sclerosis. Presumptive diagnosis can be achieved by radiology, but such diagnosis must be confirmed by histology. The aim of therapy is to remove the cause when recognized, aided by an adequate antibiotic therapy. Clinical, radiographic, and histologic features are presented in this case report.

ISSN:1049-2275    

出版商:OVID    

年代:2002

数据来源: OVID