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Biomedical subjects

G C Sotereanos

Publications and source records attributed to G C Sotereanos.

At least 19 recordsLinked to original sources
PubMed1996

Alloplastic augmentation of the mandibular angle.

PURPOSE: This article describes the use of a large-pore polyethylene implant for mandibular angle augmentation. PATIENTS AND METHODS: Patients with severe facial deformities who had previously undergone multiple surgical procedures and were now seeking esthetic improvement were included in this series. Their deficient mandibular angles and reduced ramus height were corrected with polyethylene implants appropriately sculptured and fixed to the mandible through extraoral incisions that preexisted in most patients. The surgical technique is described, and four representative cases are presented that illustrate the changes in facial contour and esthetics. RESULTS: Postoperative appearance was considered very satisfactory, and the patients' esthetic expectations were met to a great extent. The mandibular angle was well outlined, and facial contour and proportions were enhanced. CONCLUSION: This surgical procedure is recommended for mandibular angle augmentation when proper indications are strictly observed and surgical steps are accurately followed.

Adult↗
PubMed1993

Estrogen and progesterone receptors in temporomandibular joint discs of symptomatic and asymptomatic persons: a preliminary study.

Numerous studies have shown the presence of estrogen receptors and a mediated effect of estrogen through these receptors in the articular cartilage of various species, including humans. Because temporomandibular joint (TMJ) symptoms are more prevalent among women, this study was performed to investigate the presence of estrogen and progesterone receptors in the human TMJ. Seven TMJ disc specimens obtained from women with TMJ symptoms with documented internal derangement were analyzed for the presence of these receptors. These were compared with another group of 15 TMJ discs removed from men and women with no TMJ symptoms undergoing skull base surgery who had extirpation of the TMJ for access to the skull base. Detection of these receptors was done by an immunohistochemical technique using mouse monoclonal antibody. The results showed the presence of these receptors in both symptomatic and asymptomatic men and women. Although these receptors were found in more of the women with TMJ symptoms than the other two groups, due to the small number of the specimens studies no definitive conclusions as to the correlation between female sex hormones and TMJ symptoms could be drawn. However it was concluded that the TMJ disc is, at least in some men and women, potentially a female sex hormone target tissue.

Adult↗
PubMed1992

Idiopathic trigeminal neuralgia complicated by lingual nerve dysesthesia.

The treatment of facial pain disorders has become a multifaceted discipline that involves numerous scientific fields. Diagnostic and treatment modalities may be beneficial to the patient but at times may also complicate the problem and compromise the outcome. We present an interesting case of left trigeminal neuralgia complicated by unassociated lingual nerve dysesthesia.

Cranial Nerve Diseases↗
PubMed1992

Lateral canthotomy transconjunctival approach to the orbit.

Multiple surgical approaches to the orbits with the use of the eyelids have been used. The orbital rim incision fell into disfavor because of esthetic considerations. A subciliary approach supplemented by the lateral brow incision is currently the most popular method of approach to the orbital rim. It provides adequate access to the orbit, but it is not without inherent complications, such as unfavorable scarring, ectropion, and entropion. This article describes an alternate approach to the orbit by means of a transconjunctival incision with lateral canthotomy.

Bone Plates↗
PubMed1991

Technical innovation: transfacial approach for infraorbital nerve exploration and orbital-maxillary surgery.

A transfacial approach for infraorbital nerve exploration and maxillary surgery has been developed, allowing for good visual access as far posteriorly as the foramen rotundum and anterior maxillary region. This allows for infraorbital osteotomies, peripheral nerve grafting, neurolysis procedures, or combined maxillofacial-neurosurgical procedures with gasserian ganglion exploration and/or grafting. The procedure affords maximum surgical accessibility with good postoperative healing and minimal concerns about potential oral contamination.

Bone Transplantation↗
PubMed1991

Maxillofacial considerations in orthotopic liver transplantation.

Orthotopic liver transplantation is now a widely used treatment for patients with end-stage liver disease. Lifelong pharmacologic immunosuppression renders these patients susceptible to many infections. The purpose of this article is to provide guidelines for treating the patient with end-stage liver disease, both before and after transplantation. In addition, we shall discuss some of the medical implications associated with end-stage liver disease and their clinical presentations and appropriate presurgical management. Adverse side effects of long-term immunosuppression and their effect on the oral and maxillofacial region shall also be discussed. Last, a brief discussion of FK506, the latest immunosuppressant, will be presented together with the implications of its use on our surgical treatment of these patients.

Anti-Bacterial Agents↗
PubMed1991

Modified Le Fort I (maxillary-zygomatic) osteotomy: rationale, basis, and surgical technique.

A modified version of the Le Fort I maxillary osteotomy is described. The esthetic and anatomic basis, the surgical technique, and possible complications are discussed and two representative cases are shown. This technique has been used to treat 38 patients with various degrees of combined maxillary-zygomatic deficiency in the last 3 years. Based on this experience, it is concluded that this procedure provides a predictable esthetic result and excellent skeletal stability with few intraoperative and postoperative complications. Furthermore, the need for simultaneous bone grafting or alloplastic implants, as in the conventional Le Fort I, is virtually eliminated using this osteotomy.

Adult↗