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At least 433 records · Page 24Linked to original sources
PubMedDate not supplied

[Distraction osteogenesis of the cranio-maxillo-facial bones].

Distraction osteogenesis is a surgical technique: its main purpose is to induce a mechanically stimulated bone tissue augmentation. A controlled tension, developed by a slow and gradual separation of the corticotomized/osteotomized bone segments, induces new bone formation and related soft tissue augmentation. In this way, we can observe a more harmonious tissue augmentation, better than with traditional techniques as osteotomies with grafts. This procedure, initially applied in orthopedic field for limb lengthening, is now also applied in the cranio-facial field. The most important features of distraction osteogenesis consist in the simplicity of execution, the lack of donor site morbidity and the simultaneous expansion of bone and related soft tissue. Besides, the technique is still at the beginning and requires further acknowledgements, before being widespread used to treat cranio-facial malformations. Disadvantages in bone distraction are related to the external device and consist in esthetic discomfort during treatment, and cutaneous scars. Recently, to solve these problems an intraoral distraction device was proposed. Distraction osteogenesis has now an expanding role in cranio-facial surgery.

Facial Bones↗
PubMed1986

[Results of nuclear spin tomography of facial bone tumors].

We examined 21 patients with tumours of the mouth, one with tumour involvement of the facial skeleton and three with lymph node involvement in the upper neck, by nuclear tomography. Twenty patients with carcinomas of the mouth were also examined by CT. Nuclear tomography was superior to CT in showing the extent of the tumour; in ten patients the extent of the tumour could not be accurately determined, since there was no clear demarcation from normal tissue. Amongst our patients, nuclear tomography was also superior for showing lymph node metastases. Computed tomography is better at showing bone infiltration. Our results indicate that nuclear tomography is better than CT for showing the tumour and lymph nodes. If there is a suspicion of bone involvement, CT should be used in addition.

Fibroma↗
PubMed1992

[Pedicled facial bone flap for closure of the approach in Caldwell-Luc type sinus operations. Its role in the prevention of postoperative complications].

The primary or secondary reconstruction of the facial access after Caldwell-Luc and the more selective resection of sinusal mucous membranes can be important in the therapy and prevention of postoperative complications such as neuralgic facial pain, formation of cysts and chronic sinusitis. The different osteoplastic sinus operations are described and the use of a pedicled bonelid is illustrated. The most common accepted ethiology of post-operative pain is based on the formation of scar-tissue. Postoperative pain is first being treated conservatively, while in case of persisting pain an exploration with dissection of the infra-orbital nerve and reconstruction of the facial defect can be indicated. In a retrospective study of 36 patients the results of our surgical therapy are illustrated.

Adult↗
PubMedDate not supplied

[Segmental osteotomies of the mandible in the orthodontic surgical treatment of malformations of the facial bones].

In this article the Authors take under consideration surgical techniques of segmental osteotomy of the mandible in the treatment of the maxillo-facial skeleton alterations. The anterior inferior alveolar segmental osteotomy, total subapical osteotomy, anterior subapical osteotomy, genioplasty and the midline mandibular osteotomy are presented with their surgical techniques and indications. Therefore the authors present two cases of patients undergone to orthodontic--surgical treatment.

Adult↗
PubMed1998

[Evaluation of the diagnostic value of color Doppler ultrasound examination of salivary gland neoplasms and metastatic tumors from the facial bones].

The aim of the study was to evaluate usefulness of colour Doppler ultrasound examination in diagnosing the salivary gland tumours and the metastatic tumours of the neck originating from the facial part of the skull. Epidemiology and histopathology of the neoplasms involving the salivary glands and the facial skeleton were discussed including the route of their spreading to the neck. The author presents update techniques of bony face radiologic imaging and basic principles of modern colour Doppler ultrasound. The examinations with the use of a colour Doppler equipment-Acuson 128-XP 10 were performed in 150 patients with the neck tumours. The exact location, size, morphology and blood supply were assessed using B and B colour mode. Then some big neck vessels like the common, internal and external carotid artery, vertebral artery, internal jugular vein were visualized. All the patients were divided into three groups according to what they were suffering from: sialoadenitis, benign and malignant tumours. The obtained results were compared and confronted with clinical features. The pattern of vascularization failed to allow for establishing preliminary diagnosis in patients in each group. Within the first group, with inflamed glands did not compress the neck vessels. Of all the patients with benign tumours, extrinsic compression on the internal jugular vein and the carotid arteries was found in 16 and 14 patients respectively. In the third group of patients with malignant disease, compression on the veins was detected in 10 cases while 5 tumours compressed the arteries. The invasion involved the internal jugular vein in 7 patients while the common and internal carotid arteries were invaded in 6. The vertebral artery was never found to be affected. It was demonstrated that compression on veins resulted in disturbing the flow which was not observed as far as the arteries were concerned. Disturbing in the flow of veins and arteries was disclosed in cases of invasion. Atheromatosis was detected in patients of each group, 7 of them had to be operated on due to a stricture within the proximal part of internal carotid artery. The results of the study express high diagnostic value of colour Doppler ultrasound examination in the neck tumours. The examination should be obligatory performed as one of the first diagnostic measures after admitting a patient. The method seems to be of very little use in diagnosis differentiating inflammation, benign and malignant salivary gland tumours and metastatic masses of the neck hence some other diagnostic procedures should be here employed.

Adolescent↗
PubMed1993

Diagnosis and treatment of fractures of the facial bones in children 1943-1993.

It is clear that the foundations for diagnosis and the basic principles of management have changed little since 1943 and probably since the work of Kazanjian in World War I. Major advances have occurred, with modern techniques of airway management (particularly fiberoptic laryngoscopy), anesthesia, and an understanding of fluid and electrolyte balance and behavioral issues in children. In addition, the advent of antibiotics; new imaging techniques (particularly CT), and availability of new instrumentation and rigid internal fixation have all revolutionized the specific treatment of pediatric facial fractures. Craniofacial techniques, pioneered by Dr Paul Tessler, have significantly altered and improved treatment of pediatric midface fractures. Progress in the biology of bone healing will surely mark the next 50 years.

Accidents, Traffic↗
PubMed2005

Brown tumor of the facial bones: case report and literature review.

Brown tumor, an uncommon focal giant-cell lesion, arises as a direct result of the effect of parathyroid hormone on bone tissue inpatients with hyperparathyroidism. The initial treatment involves the correction of hyperparathyroidism, which usually leads to tumor regression. We report a case of brown tumor of the right nasal fossa in a 71-year-old woman. The tumor had caused nasal obstruction and epistaxis. Laboratory evaluation revealed that the patient had primary hyperparathyroidism. Anatomicopathologic investigation revealed the presence of a giant-cell tumor We performed a partial parathyroidectomy, but the tumor in the right nasal fossa failed to regress. One year later we performed surgical resection of the lesion. The patient recovered uneventfully, and she remained asymptomatic and recurrence-free at the 1-year follow-up. Facial lesions with histologic features of a giant-cell tumor should be evaluated from a systemic standpoint. Hyperparathyroidism should always be investigated by laboratory tests because most affected patients are asymptomatic. Surgical resection of a brown tumor should be considered if the mass does not regress after correction of the inciting hyperparathyroidism or if the patient is highly symptomatic.

Aged↗