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Biomedical subjects

C Chossegros

Publications and source records attributed to C Chossegros.

69 records · Page 4Linked to original sources
PubMed1991

[The role of condylectomy in the treatment of mandibular laterognathism in children].

In 7 cases of mandibular laterognathia caused by condylar hypertrophy, the authors specify the clinical and teleradiological features in adolescents. They emphasize the inadequacy of lateral teleradiography and of its measurements, and the need for three-dimensional investigation. In adolescents, secondary deformations, either spontaneous or therapeutic, are rare, and the treatment preferred is condylectomy based on the study of casts. The immediate results of this techniques are satisfactory. The long-term consequences on growth and temporomandibular pathology have been studied.

Adolescent↗
PubMed1991

[Schuchardt's procedure and surgery of open bite].

Posterolateral segmentary maxillary impaction osteotomy has a role to play in the treatment of gaps between the upper and lower jaws. It has several advantages, especially an uncomplicated postoperative period and the single-maxillary contention it provides. The indication must be established after an articulator assessment in order to take into account the mandibular protrusion caused by autorotation and to prevent a sagittal shift. Associated marginal glossectomy will frequently be required. Similarly, in case of vertical excess, genioplasty for vertical reduction will improve the facial balance. This technique may also be proposed as "pre-prosthetic surgery" in cases of egression in the premolar and molar areas, for which it has shown excellent results.

Cephalometry↗
PubMed1991

[Post-traumatic ptosis].

Traumatic ptosis is most often secondary to a fasciomuscular lesion of the levator system. Less frequently, it results from the paralysis of the levator muscle due to an injury to the third pair of cranial nerves. This ptosis is observed in comminuted orbital fractures or fractures of the base of the skull involving the orbital apex, and it is then associated with oculomotor paralysis. In favorable cases seen early, repairing surgery of the levator system produces excellent results. When associated with ophthalmoplegia or corneal anesthesia, neurogenic ptosis requires a watch and wait policy.

Blepharoptosis↗
PubMed1991

[The aging eyelid].

Eyelid involution affects all the tissues of the lid, including the tarsotendinous band and the levator muscle. Dermatochalasis can be complicated by ptosis, entropion or ectropion, which must be taken into account during assessment and treatment.

Aging↗
PubMed1991

[Repair of enlarged orbital exenteration cavities].

An empty orbital cavity is always unesthetic-looking, but several plastic surgery procedures exist to attenuate the cosmetic damage. In case of exenteration affecting periorbital tissues and cavities, spontaneous epithelialization is preferable than a split skin graft. Except for rare cases, where it is indicated to preserve the conjunctivae and eyelids, covering up may be realized with minimal scarring using two flaps, one superficial jugotemporal, and the other deep mid-frontal.

Eye Enucleation↗
PubMed1991

[Use of a posterior temporal muscle flap in surgery of the temporomandibular joint].

The anatomical and physiological relation between temporal muscle and temporomandibular joint are well-knowed. The versatility of the temporo muscle-fascia flap must be stressed. The posterior temporal flap is a simply, reliable procedure, with low morbidity. This technique is probably the procedure of choice in discal replacement and in interposition arthroplasty for ankylosis.

Humans↗
PubMed1990

[Entropion: therapeutic indications].

The severity of entropion depends on trichiasis which is perpetuated by orbicularis spasm, creating a vicious cycle. The therapeutic approaches are based on the aetiopathogenesis. Congenital entropion is essentially treated by infraciliary cutaneomuscular resection. The various components of involutional (senile) entropion, horizontal and vertical retraction, orbicularis dyskinesia, are treated respectively by tissue reduction, reinforcement of retractore and myoplasties. In cicatricial entropion, chondro-mucosal or fibromuscular graft is the technique of choice for correcting insufficiency of the tarsoconjunctival plane or its curvature. It is also the best solution for the correction of trichiasis or distichiasis.

Burns, Chemical↗
PubMed1990

[Melanotic neuroectodermal tumor of childhood or melanotic progonoma. Apropos of a case which recurred as an osteogenic tumor].

We are yielding a case of recurring melanotic neuroectodermal tumor of infancy situated in the premaxilla, with a very quick evolution, haemorrhage, and which has precociously recurred after surgical removal. This tumor is studied on the paraclinical (CT scan, M.I.R.) and on the histological hand (immunohistochemical and ultra-microscopy). This observation is then compared with those of literature in which we find about 200 cases. The neurocristopathic histogenesis is actually doing the unanimity. The prognosis must now be quite reserved because of the recurrences (one case for six) and the possibility of malignant forms, some with metastasis.

Connective Tissue↗
PubMed1990

[Cancellous mandibular autografts and titanium mesh].

Pure cancellous bone transplants constitute an alternative to the usual cortico-cancellous grafts used in certain cases for restoring interrupting substance loss (ISL) in the mandible. The greater number of surviving transplant cells, the rapid revascularization and more complete osteogenesis that are achieved cause indications for this type of graft to be particularly well adapted for cases where local repair conditions are precarious, such as bullet wound related sequelae. Indications for their utilization also extend to patient who have had benign tumors excised. The titanium-made receiving splint designed by Pr. Dumbach is particularly well adapted to this type of restoration; it provides for necessary functional stresses to be translated to the implant, allowing for the latter's incorporation, while controlling the direction of osteogenesis, thereby yielding excellent morphological and functional results.

Bone Transplantation↗
PubMed1990

[Repair of mutilations of the lacrimal apparatus].

Repair of mutilated lacrimal passages should be adapted to the anatomy and physiology. Whenever possible, this should be performed as an emergent operation and come in as part of an overall therapeutic strategy. Repair methods used are simple end-to-end approximation of permeable segments, in case of limited lesions, and use of arterial grafts or of adjacent, nasal or saccular mucous flaps, in case of extended lesions. When reconstruction is not feasible owing to the extent of the lesions or to failure of the repair methods, tear derivation is carried out directly via the lacrimal sac or nasal fossa, by means of intermediate flaps (primarily nasal mucosa) or indwelling drains. Objectively, the functional outcome of repair is hard to assess, as tearing can, by no means, be considered a clinical criterion of obstruction, in the same way as lack of tearing is not a criterion of permeability. Only dacryography or, when possible, postoperative scintigraphy of the lacrimal passages allow for an objective evaluation of the results. Thus, although satisfactory results are the rule, long-term objective observation often leads to mitigating feelings.

Dacryocystorhinostomy↗
PubMed1990

[Cherubism. Apropos of case reports of 3 families].

After a brief historical summary, the authors report twelve cases of familial form of cherubism and compare them with the other reports of the international literature, of which they make a review.

Adolescent↗