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Biomedical subjects

J Delaire

Publications and source records attributed to J Delaire.

At least 37 records · Page 2Linked to original sources
PubMed1991

[Binder's syndrome (maxillo-nasal dysostosis) and associated orthopedic malformations].

The authors refer to cases of associated orthopedic malformations reported in 17 patients with Binder's syndrome. Aside from already known anomalies of the cervical spine detected in 58.8% of cases, finger malformations are found in one third of single X-chromosome carriers (boys or Turner's syndrome). This calls for studying these malformations in parallel with X-linked minor isolated recessive chondrodystrophy.

Abnormalities, Multiple↗
PubMed1991

[A new case of adenomatoid odontogenic tumor].

We have reported a new case of adenomatoid odontogenic tumour, treated as is classic, by simple enucleation that is the selected treatment. This lesion is, in fact, a malformation and not a variety of ameloblastoma as some denominations (ameloblastic adenomatoid tumour, adenoameloblastoma) could make to think.

Adolescent↗
PubMed1990

[Prognostic and therapeutic aspects of lympho-epithelial lesions of the parotid. Apropos of 8 cases].

The so-called benign lympho-epithelial lesion (BLEL) of the parotid is a rare condition. Its diagnosis is based on histology. For a long time there have been problems with its classification and prognosis: classification since certain cases may be classified as Sjögren's syndrome or as a precursor of the latter, prognosis there may be recurrence, contralateral involvement or progression to non-hodgkin's lymphoma. The authors discuss these factors in 8 cases and propose total parotidectomy with facial nerve preservation as the treatment of choice.

Adult↗
PubMed1990

[The role of the condyle in the growth of the mandible and in facial balance].

The condyle is not responsible for the growth of the body of the mandible, as the latter does not extend in length caudally at the expense of the ascending rami (through the classical relocation phenomenon), but does so deep to these, at the level of the lower insertions of the sphenomandibular ligaments (i.e., from the inlet inner border of the inferior dental canals). Philogenetically and ontogenetically, its appearance reflects the adaptation of the mandible of mammals to the morphologic and functional changes that took place in their cephalic skeleton (more erect posture, more vigorous mastication). Its chief role in man is to stabilize the mandibular body and to allow it to be properly mobilized, although contributing also to its forward and downward movements (namely in its posterior aspect). As such, it plays an active role in mandibular growth, and this role varies according to the primary "potential" of the condylar cartilage. Such primary-type potential for condylar growth may be adequately assessed by studying the shape of the mandible, as well as through an analysis of craniofacial architecture. Most of the conventional diagrams depicting mandibular growth are defective. Another figurative system has to be innovated, that will differentiate each skeletal unit--body, condyle, coronoid process, angle, alveolodental arch--, the sum of which confers the shape, the size, and the multiple variations to the mandible as a whole.

Animals↗
PubMed1990

[Labioglossopexy in Pierre Robin syndrome. Our experiences apropos of 70 cases].

Pierre Robin syndrome is typically characterized by glossoptosis and retrognathia associated with cleft palate, respiratory and deglutition disturbances. Two morphological tendencies arise out of this 70-patient series, 50 of whom were managed with the same therapeutical regimen, which included labioglossopexy and was associated with only one case of death: "deforming" type Pierre Robin syndrome most commonly follows a favorable course with respect to both function and facial deformations, provided labioglossopexy is carried out sufficiently early. Indeed, this surgical operation allows for prompt restoration of normal function, thereby limiting the dysfunction-deformation vicious circle. This form of Pierre Robin syndrome may find its origin in the embryo's abnormal amniotic environment. "Malformation"-associated Pierre Robin syndrome often presents with combined anomalies, respiratory disturbances that may evolve into severe airway problems, impaired deglutition and abnormal brain development; in most cases, labioglossopexy will dramatically improve the immediate state of the child, although long-term prognosis as regards malformation is rather guarded.

Adolescent↗
PubMed1990

[The place of mandibular condylectomy in surgery of temporomandibular joint dysfunction].

Mandibular condylectomy is one of the methods to which one must sometimes resort when treating temporomandibular joint dysfunction. As emphasized by Merville, this is the conventional method used whenever dealing with condylar hypertrophy , as well as in certain grade-III cases with deep bite. However, another interesting indication for it is the horizontal configuration of the occlusal plane, leading to pain and/or luxation. This type of surgical joint operation presents no risk whatsoever, provided the meniscus is respected.

Humans↗
PubMed1989

[Changes in the posterior vertical dimension of the face. Etiopathogenic factors, architectural criteria and therapeutic aspects].

The ramus of the mandible appears with the cephalic hominisation phenomenous during phylogenesis and determines the vertical posterior height of the face. Among the three skeletal units that form it, the condylar one is responsible of this height and of the level of the posterior part of the occlusal plane. So, all congenital, constitutional or acquired diseases concerning this unit, give a change of the vertical posterior height of the face. The excess troubles ar essentially represented by the condylar hyperplasia, usually unilateral and treated by condylectomy. The vertical posterior insufficiency may be unilateral or bilateral. The former looks like a mandibular asymmetry whereas the latter looks like an anterior vertical excess with or without a Class II malocclusion. If the condyle is absent or T.M.J. destroyed like in ankylosis, the authors use the costo-chondral graft to repair it. But in condylar hypoplasia, they use a vertical osteotomy of the ramus for lengthening the ramus. The three-dimensional architectural analysis is very useful for studying the vertical posterior height of the face and his changes.

Humans↗
PubMed1989

[The 3 palatine fibromucous membranes. Their role in maxillary growth. Therapeutic role in surgery of the palatine shelves].

The palatine fibromucosa is not the same throughout the various regions of the palatine vault and its role differs in maxillary growth. On can in fact distinguish: --the fibromucosa of the "palatine lamellae", thin and smooth, which occupies only the median and posterior portion of the vault, opposite the nasal fossae. Its importance derives from the fact that it covers the medio-palatine and palatino-vomerian suture complex, which has an essential role in transverse, vertical and also sagital maxillary growth; --the palatine maxillary fibromucosa, thick and striated, which surrounds the above as far as the gingiva. It plays a major role in transverse and vertical maxillary growth. In fact, it would appear that it possesses autonomous growth potential; --the "gingival" fibromucosa, smooth, which is located at the alveolar level (from the palatine maxillary to the gingivo-dental border) and is involved in the structure of the latter. A good understanding of the anatomical and physiological aspects of these three fibromucosae has a therapeutic relevance, in particular, in subjects suffering from congenital velo-palatine defects (isolated or associated with a labio-maxillary defect).

Cleft Lip↗
PubMed1988

The effects of nasomaxillary injury on future facial growth.

The appearance of results of injury to the columella, the nasal septum, and the nasal bones, in particular, has been well described. Anomalies of the maxilla and global facial balance secondary to nasomaxillary injury are less well known. Three cases involving children, aged 11, 14, and 17 years, who had suffered nasomaxillary injury at least 8 years earlier as a result of physical beating, were studied with the use of photographs and architectural craniofacial lateral cephalometric radiographic analysis. The architectural craniofacial analysis of Delaire produced a graphic representation of the resultant maxillofacial deformities rather than a description of the deformities in terms of deviation from a statistical mean. Traumatic injury to the nasomaxillary complex provides an experimental model that implicates the role of the cartilaginous nasal septum and local functional conditions in the growth of the nasomaxillary complex. The importance of the functional premaxillary skeletal unit in balanced facial growth allows better understanding of the pathophysiology of malformation of this region.

Adolescent↗
PubMed1988

The advantage of wide subperiosteal exposure in primary surgical correction of labial maxillary clefts.

Wide subperiosteal undermining in primary surgical correction of labio-maxillary clefts not only enhances the osteogenic activity of the periosteum but in addition, if the exposure is extended from the superior limit of the ascending maxillary process and the nasal bone to the inferior orbital rim above the infra-orbital foramen and the malar eminence, good suppleness of the overlying muscles can be achieved.

Cleft Lip↗