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Biomedical subjects

F Halling

Publications and source records attributed to F Halling.

At least 19 recordsLinked to original sources
PubMed1992

A new condylar positioning technique in orthognathic surgery. Technical note.

In two-jaw surgery, special importance must be attached to the maintenance of the condylar position, particularly in combination with rigid fixation, not only to enhance the stability of the post-operative result but also to avoid iatrogenic temporomandibular joint complications. The new positioning method reported herein is based on a mini fragmentation plate, which can be easily adapted to the bone surface. Reinforcement of the plate by autopolymerizing acrylate, injected into a silicone tube which is pushed over the plate, prevents any unnoticed deformation of the positioning device during surgery. In clinical use, this positioning method has proved to be more versatile and technically less difficult to perform than previous techniques, without any decrease in reliability.

Bone Plates↗
PubMed1992

Clinical and radiological findings in Gardner's syndrome: a case report and follow-up study.

Gardner's syndrome is characterized by colorectal adenomas, multiple osteomas, especially of the skull, and various soft-tissue tumours. The disease is inherited as an autosomal dominant disorder and all untreated patients will develop colorectal adenocarcinomas. Since the clinical and radiological stigmas in the maxillofacial area, such as exosteal and endosteal osteomas, skin cysts, atypical skin pigmentation and abnormal dental findings or radiopaque lesions can precede the often symptomless adenomas for many years, dentists, maxillofacial surgeons and radiologists should be familiar with the manifestations of this disease. A case is reported to illustrate the dentist's role in the diagnosis of Gardner's syndrome. In a follow-up study of 11 patients with colorectal adenomas, the typical triad of features of Gardner's syndrome was found in eight. In six patients, bony changes were demonstrated by panoramic radiography. It is proposed that radiography of the jaws may serve as a valuable tool for the early detection of carriers of Gardner's syndrome.

Adenomatous Polyposis Coli↗
PubMed1992

[The bacteriological and clinical aspects of odontogenic soft-tissue infections].

The antibiotic treatment is proved to be an effective supplement for the surgical therapy of odontogenic soft-tissue infections. For the use of antibiotics the knowledge of the oral bacterial flora and its state of resistance is very essential. In a catamnestic study the clinical records of 250 patients with orofacial infections, who were under stationary treatment in the Dept. of Maxillofacial Surgery, University Clinic Göttingen, were analyzed. The results show, that the bacterial flora has not changed basically during the last decade. Predominantly mixed aerobic and anaerobic infections can be found. Increasing importance must be attached to penicillin-resistant Staphylococci and anaerobic pathogens. Penicillins must be further considered as antibiotics of the first choice. For an extension of the antimicrobial activity the combination with a betalactamase inhibitor is useful.

Abscess↗
PubMed1992

[Case reports on the importance of the locoregional radiotherapy of Merkel cell tumor].

The Merkel cell tumor is becoming an increasingly diagnosed primary neoplasm of the skin. This subepidermal tumor is commonly located on the head and neck or extremities of elderly patients. Occasionally misinterpreted as cutaneous metastases, they show a high rate of local recurrence (27 to 52%) and distant metastatic spread (18 to 52%). The definitive diagnosis can be made with immunohistochemistry. Wide surgical excision with postoperative irradiation to the local site and regional lymphatics is the therapy of choice. In seven patients we describe management strategies and discuss their clinical results.

Adult↗
PubMed1991

Stereotactic removal of foreign bodies in the maxillofacial area.

A technique is described for making it possible to localize any deep-seated radiopaque foreign body in the soft tissues and skeleton of the maxillofacial area. Using a stereotactic guide system, any point in the facial skeleton can be reached exactly, with precalculated precision, from any point outside the face. Thus, a foreign body can be exposed and subsequently removed by a surgical approach that gives minimal discomfort and carries low risk. The target probe serves the surgeon as a guide bar whilst the tissue is dissected. A precondition of successful stereotactic operations in the head and neck area is close cooperation between neurosurgeons and maxillofacial surgeons.

Aged↗
PubMed1991

[Operative correction of dysgnathism as preprosthetic management].

The prosthetic management of edentulous patients with skeletal dysgnatism is difficult. Surgical treatment as Le-Fort-I-osteotomy or sagittal split and rigid fixation with plates can be helpful. Technique, indications and additional procedures are introduced in two clinical cases.

Adult↗
PubMed1991

[Mandibular condyle fractures in childhood: effects on growth and function].

Long-term follow-up findings in 29 patients having had childhood condylar fractures and 13 patients having had childhood mandibular body fractures combined with condylar fractures are presented. In only 12% of all cases moderate to severe mandibular growth abnormalities were observed. About 2/3 of these patients showed growth retardation on the condylar fracture side. 1/3 of this group, however, demonstrated more pronounced growth on the fracture side compared to the nonfracture side. Cephalometric measurements proved to be the most effective method for evaluation of growth disorders, whereas clinical examination and photographs were less efficient. Although function and anatomical remodelling was good, the probability of complete remodelling and functional rehabilitation is higher in younger children.

Child↗
PubMed1991

[Gardner syndrome--an interdisciplinary disease picture].

Gardner's syndrome, completely expressed, consists of a triad of symptoms: polyposis of the colon, osteomatosis and mesenchymal tumours of the skin. Inheritence is autosomal dominant. In a follow-up examination amongst eleven patients with polyposis intestinalis a typical constellation of symptoms of Gardner's syndrome was found in eight. With increasing age of the patients polyposis of the colon shows a marked tendency to malignant degeneration. Because osseous lesions and striking skin pigmentation in the facial and jaw region precede polyposis coli, dentists may have an important role to play in the early detection of Gardner's syndrom. The disease is illustrated by a case report.

Adolescent↗
PubMed1991

[Comparative radiologic studies of artificial esophageal speech of laryngectomized patients].

Radiographs were taken of the pharyngo-oesophageal segment (PE segment) of 19 laryngectomees, 16 of whom had oesophageal speech. The voice production was studied by X-ray video-tape. Oesophageal speakers with a good voice showed a much wider upper oesophageal (subpseudoglottic) space and more prominent or round PE segments than poor speakers. Video recordings showed that good oesophageal speakers develop motion within the voice-producing system, characterized by maximum air intake and by active retrograde contractions of the oesophagus. In contrast, these structures showed little functional adaptation in poor speakers.

Esophagus↗
PubMed1990

[Studies on mandibular fractures during the growth period and late results of surgical treatment].

Because of their etiology, localization and therapy, mandibular fractures in children occupy a special position. At the University Hospital in Göttingen 70 children with a total of 112 mandibular fractures were treated between 1979 and 1988. 30 out of 36 mandibular body fractures were treated with plate fixation, i.e. predominantly minicompression plates. This type of treatment requires no postoperative intermaxillary fixation. Furthermore, it allows immediate functional treatment for a possible concomitant condylar neck fracture. Neither clinically nor radiographically was there any major inhibition of mandibular growth or nonunion in the 24 patients examined (mean follow-up period 4.7 years). The results demonstrate that rigid plate fixation of mandibular fractures may also be recommended in children.

Adolescent↗
PubMedDate not supplied

[Volumetric verification of edema protection with Serrapeptase after third molar osteotomy].

Preventive edema protection using Serrapeptase after standardized one-stage osteotomy procedures of 4 third molars was verified by means of an opto-electronic measuring instrument. This measuring technique proved to be a sensitive tool for demonstrating the efficacy of Serrapeptase in reducing postoperative edema. Although statistically significant, the reduction of soft tissue swelling was only approximately 15% when compared with a patient group without Serrapeptase medication.

Adolescent↗
PubMedDate not supplied

[Fibrin adhesives in the treatment of oral hemangioma].

Selective embolization using the fast-setting phase of a fibrin adhesive is an improvement in the range of therapeutic options for oral hemangioma. Direct injection of TISSUCOL permits a safe, selective and tissue-sparing operative procedure involving little bleeding and resulting in the complete extirpation of a hemangioma with all the residues.

Embolization, Therapeutic↗
PubMedDate not supplied

[Ascher's syndrome].

Ascher's syndrome is composed of the triad blepharochalasis, double lip and goitre. In many of the cases reported in the literature this typical constellation of symptoms is not complete; particularly the struma is not mandatorily involved. A 58-year-old patient with this rare disease who exhibited blepharochalasis and double upper and lower lip is presented. Additionally, subclinical hypothyroidism and alopecia areata totalis were found. In differential diagnosis other causes of double lips or enlargement of the lips must be considered.

Alopecia Areata↗