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Biomedical subjects

N Hardt

Publications and source records attributed to N Hardt.

At least 91 records · Page 5Linked to original sources
PubMed1979

[Arteriovenous angioma in the maxillofacial region].

Congenital arteriovenous angiomas are seldom observed in the maxillofacial region. Because of their hemodynamic-active Shunt volumina, they tend towards progressive and difforming increase in volume. Clinical differentiation from other angiodysplasias is obtained by serial angiography. Therapy in the facial region consists of either a direct and mostly subtotal interruption of the short circuit by embolization of the AV shunts and selective ligature of the hemodynamically important vessels, or in a total removal of the involved region by extensive plastic-reconstructive measures. The latter particularly applies to hemodynamic shunt volumina with general cardiovascular feedback, grave recidivating bleeding, important defiguration and recidives after selective ligature operation.

Arteriovenous Malformations↗
PubMed1979

[Application and experience with xeroradiography in the jaw].

Basics and characteristics of xeroradiography for bones and soft tissues, known and used in medecine only since 1971, are described. Advantages and disadvantages in comparison with the conventional radiography are evaluated, important possibilities for the use of xeroradiography are shown, on the basis of personal experience, in the field of face and jaws.

Facial Bones↗
PubMed1979

[Chronic temporomandibular joint luxation. Results after corrective surgery].

Recidivating luxation of the TMJ are the topic. The clinical picture, therapy and operative methods are described. In particular, the results from a modified intraoral surgical operation are reported. Special emphasis is placed upon the partial removal of the medial pterygoid muscle which leads to a stronger and permanent scarring. This method is particularly suited for recidivating luxations, when the condyle paths are steep, and when luxation occurs toward the end of the mandibular opening movement. When condyle paths are flat or in cases of recidives other methods are recommended (for instance osteoplasty).

Joint Diseases↗
PubMed1979

[Surgical intervention in traumatic orbital syndromes].

Craniofacial traumata may be accompanied by retroorbital fractures with severe ophthalmologic complications. Each of the clinical syndromes is characterized by a combination of ophthalmoplegia, paralyzed pupillary function and visual disorder. These deficiencies are caused by injury of muscles, nerves and vessels and compressive retroorbital hematoma. In the case of such damage, the poor prognosis can be improved by surgical intervention consisting in the evacuation of the retroorbital hematoma.

Hematoma↗
PubMed1978

[Xerography in the facio-maxillary region (author's transl)].

The basis and characteristics of xerography, which was introduced into medicine in 1971 for examining bones and soft tissues, are described. The advantages and disadvantages as compared with conventional film techniques are mentioned. The application of xeroradiography in the facio-maxillary region is discussed in relation to our own experience.

Facial Injuries↗
PubMed1977

Secondary reconstruction of cranial defects.

The increase in the number of cranial defects following injury requires more extensive use of plastic reconstructive measures on account of the exposed site of the defects or for cosmetic reasons. In 30 cases of secondary cranial defects, we have used various means of reconstruction. Alloplastic materials are used in our patients only to a limited degree, autologous bone transplants are preferentially employed. Of the autoplastics, secondary calvarium reimplantation has been the most successful, with respect both to function and cosmetic results. Our experience shows that split-rib grafts are also very suitable for the closure of defects, while sliding bone grafts with a periosteal pedicle are rarely indicated. The selection of the transplant material in the individual case and our experience with various methods are discussed.

Craniocerebral Trauma↗
PubMed1977

[Familial syndrome with lip fistulas and microforms of cleft velum].

Four siblings are reported who have congenital fistulae of their lower lips (with one exception) associated with bifid uvula and partial manifestations of submucous cleft palate, while their mother has a bilateral cleft lip and palate as well as bilateral fistulae of the lip. The malformation is possibly transmitted as an autosomal dominant trait. This special type of hereditary combination is not mentioned in the literature, as far as we know, and appears to be a very rare clinical variation of the syndrome normally associated with clefts of lip and palate and fistulae of the lip.

Adolescent↗
PubMed1977

[Choice of transplant in cranial defects. Analysis of 73 cases].

In many of the increasing number of primary or secondary calotte defects resulting from traumatic cranial injuries, plastic reconstruction of the cranium is required. Between 1965 and 1975 in the Surgical Department of Lucerne's Canton Hospital 73 posttraumatic defects of the cranium were repaired. In 69 cases autoplastic transplants and in 4 cases alloplastic transplants were used. The calotte plate (Elliot and Scott), pieces of pelvic bone (Converse), rib (Longacre and De Stefano), as well as costal cartilage (Peer) provided autoplastic material. Alloplasty for the cranium was carried out only in selected cases where special indications were present. Our results in the selection of autologous transplants for the reconstruction of secondary cranial defects is discussed and the surgical procedure is presented.

Adolescent↗