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Biomedical subjects

R B Scheffer

Publications and source records attributed to R B Scheffer.

18 recordsLinked to original sources
PubMed1995

Inferior border titanium cribs in mandibular reconstruction.

A prospective study was made of 14 patients with mandibular continuity defects not involving the condyle who underwent mandibular reconstruction with autogenous particulate cancellous and bone marrow, autologous fibrin adhesive, and custom-made inferior border titanium cribs. The design and fabrication of the cribs were based on the prediction tracing of the mandibular defects from panoramic radiographs. The mandibular arch form, facial contour, and alveolar bone height were restored with high accuracy. The average follow-up time was 30 months. Autologous fibrin adhesive held the bone particles firmly together and accelerated the bone graft healing, which enabled the early removal of the intermaxillary fixation and restoration of the masticatory function. The results of this study demonstrated that the use of inferior border titanium crib designed from a simple, practical, and inexpensive technique is valuable in mandibular reconstruction.

Adolescent↗
PubMed1987

Bilateral fixation of a nasotracheal tube by transfacial Kirschner wires.

Because of the high margin for error with transfacial internal wire fixation, even in the hands of an experienced practitioner, alternative modalities in the treatment of zygomaticomaxillary complex fractures should be considered. When the use of transfacial rigid wire fixation is indicated, emphasis should be placed on prevention and early recognition of nasotracheal transfixation to avoid unnecessary postoperative catastrophies.

Adult↗
PubMed1987

Spontaneous pneumothorax: an unusual occurrence in a patient with Ludwig's angina.

Airway obstruction with asphyxiation remains the most common life-threatening complication in Ludwig's angina. This particular case posed an interesting challenge because of the multiple complications that arose prior to and during treatment. A review of medical literature revealed that a case of Ludwig's angina with concomitant spontaneous pneumothorax has not been previously reported. The possibility of these two entities occurring together should be considered when dealing with extensive head and neck infections.

Adult↗
PubMed1986

Postoperative pneumomediastinum and pneumothorax following orthognathic surgery.

Pneumomediastinum and pneumothorax are rare complications in the postoperative oral and maxillofacial surgery patient. Review of the sequence of events relating to these two life-threatening conditions emphasizes the importance of awareness of the clinical presentation and pathophysiology of these conditions as well as the need for judicious pulmonary physiotherapy in the intubated patient.

Adolescent↗
PubMed1985

Radiographic, clinical, and histopathologic evaluation with surgical treatment of Forestier's disease.

Diffuse idiopathic skeletal hyperostosis (Forestier's disease) is a common disorder found in the spinal region, but the notable finding in this case presentation is the associated dysphagia and dysphonia that occurred with it. Asymptomatic hypertrophic spurs of the anterior surface of the cervical vertebrae may occur in 20% to 30% of the population. Rarely, dysphagia and/or dysphonia may be caused by these cervical osteophytes pressing against the esophagus, trachea, or pharyngeal tissues. A recent case of spondylitic dysphagia exhibited striking radiographic and computerized tomographic (CT) findings. In this case, the anterior cervical exostosis was resected through the anterior cervical approach with excellent relief of dysphagia.

Aphasia↗
PubMed1985

Fracture of the glenoid fossa and dislocation of the mandibular condyle into the middle cranial fossa.

Reported cases of dislocation of the mandibular condyle into the middle cranial fossa have been rare, and treatment modalities have varied. The case presented represents an instance of successful closed reduction. Numerous factors should be considered when determining the technique of reduction. Primary goals in selecting the method of treatment are stabilization of the neurologic status, control of the bone fragments in the brain, reduction of the occlusion, maintenance of ramus height for facial symmetry, preservation of growth potential, and assurance of satisfactory long-term function of the mandible.

Child↗
PubMed1983

Drills in dente.

Explore the source record for details and available documents.

Adult↗
PubMed1980

Multiple bilateral dens in dente as a factor in the etiology of multiple periapical lesions.

A case of multiple bilateral dens in dente of the maxillary anterior region with associated multiple periapical lesions of the maxilla is reported. Examination demonstrated the condition known as dens in dente to be present in all six maxillary anterior teeth. Also noted was a large palatal swelling which was confirmed to be an infected maxillary radicular cyst. The multiplicity, severity, and consequences of the dens in dente as reported in this case may indicate prophylactic restorative therapy.

Abnormalities, Multiple↗
PubMed1980

Proplast grafting: a new method for stabilization of maxillary advancements.

The various maxillary and other midface advamcement osteotomies have historically been fraught with the menacing complication of relapse. The traditional methods of attempting to compensate for the documented relapse potential incude advancement overcorrection and posterior grafting with freeze-dried bone or autogenous grafts from the iliac crest or rib. A new technique for grafting of advancement procedures with an alloplastic material, Proplast, is presented with a description of the procedure for its use and a discussion of the material's properties, advantages, and disadvantages.

Humans↗
PubMed1980

Serratia infection in a patient with bilateral subcondylar impacted third molars and associated dentigerous cysts: report of case.

A case of bilateral subcondylar impacted mandibular third molars is presented. Both impactions had associated dentigerous cyst, one of which was severely infected with Serratia marcescens and had a draining sinus tract. The patient also had uncontrolled diabetes mellitus and iron deficiency anemia, which altered her response to surgical treatment. This case illustrates the necessity for early identification of infective organisms and determining their antibiotic sensitivity, as well as the need for prophylactic removal of impacted teeth to prevent complications such as those presented.

Dental Fistula↗