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Biomedical subjects

L Téot

Publications and source records attributed to L Téot.

27 records · Page 2Linked to original sources
PubMed1992

[Chemical burns of the hand and upper limb: therapeutic approach].

Clinical burns of the hand and the upper limb induce various lesions, depending on the degree of tissue penetration and their aggressive properties; strong acids, particularly sulfuric acid and strong bases such as lime are the most dangerous. The clinical attitude should be surgical. Early skin excision, as economic as possible, will be indicated, taking into account the difficulties of precisely determining the limit between normal and necrotic tissues; fluorhydric acid, rapidly dissociates into H+ and Fl- which, because of its small size, will rapidly penetrate deeply into the blood circulation. Moreover this molecule has the peculiar power to provoke marked hypocalcemia able to cause death, due to its avidity for Ca++, with a subsequent cellular lysis. There is currently an increase in domestic accidents, as fluorhydric acid is present in several scouring solutions; in every case of chemical burns, the main treatment remains emergency washing with water possibly, followed by a specific neutralization; skin excision must be the rule when the power of neutralization is limited, because of the risk of progressively deepening lesions due to the presence of residual scouring solutions.

Aftercare↗
PubMed1992

Severe electric injuries of the hand and forearm.

Electrical injuries of the upper limb produce major destruction of tissue mainly affecting the forearm, since the hand is usually the site of entry of current. Limb salvage, if it is to be successful, requires the rapid institution of a number of surgical procedures. Vein grafting to restore blood supply is frequently required and just as frequently requires skin flap cover following adequate debridement. The most commonly used flap is the groin flap. Despite the progression of necrosis beneath the flap for a period of up to three weeks, healing is usually successful and it is usually possible to avoid amputation. Several surgical procedures are required as a rule. The initial surgery is followed, in order, by nerve graft, tendon transfer and skin transfer following the use of tissue expanders. Results long term, with regard to function and appearance, were judged good.

Adolescent↗
PubMed1991

[Treatment of axillary burn scars by a scapular island flap with a vascular pedicle].

Type 3 axillary burn retractions, involving the neck, the axilla, the upper arm and the lateral aspect of the chest, can cause difficult static and dynamic deficits altering the aesthetic appearance and the function of the shoulder. The posterior scapular area can provide an autonomized skin flap, based on the circumflex scapular vessels. This scapular flap, used as an island vascular flap, easily covers the anterior and posterior aspects of the axilla, obtaining a smooth skin surface, with a good underlying subcutaneous fatty tissue. Its elastic properties are well adapted to the dynamic requirements of the separate movements of the shoulder joint. Performed on 25 axillary burn retractions in 20 patients, this flap provided a convincing improvement in the shoulder range of movement and a return to a normal activity.

Axilla↗
PubMed1990

[Histologic and echographic correlations of the hip in newborn infants].

140 hips of fetuses have been studied using the Graf technique for morphological descriptions, the Harcke technique for dynamic studies. Then the hips were transected following the same plane as for sonography. The authors established that there was a significant relation between the progressive dysplasia of the acetabular roof and the sonographic morphological studies. The relation with the dynamic studies was less marked on cadavers studied shortly after delivery. The authors concluded that hyperpressure on the femoral head during the three last months of the pregnancy seems to be an important causal factor.

Female↗
PubMed1985

[Growth potential of vascularized epiphyseal bone transplants. Experimental and clinical study].

The objectives of this work were to evaluate, in the light of experimental results, the growth potential of vascularized fertile epiphyseal bone transplants transferred with their surrounding soft tissues in children. Thirty-one toe transfers were available for analysis from the series performed in Trousseau hospital (Paris). The results were reviewed with the unique goal of the study of growth. Transferred toes grow in an almost identical fashion to normal toes. The slightly diminished growth difference found was in accordance with experimental results. Criteria for determining the growth of these transfers must be very strict from a clinical as well as from a radiological point of view. The possibility of transfer of an isolated epiphyseal growth cartilage implies previous elaborate studies of the anatomy of epiphyseal vascularity as well as the physiology of intraosseous blood flow. Restoration of this potential for growth in children should be attempted as early as possible.

Adolescent↗
PubMed1982

[Epiphyseal vascularization during growth. Study preliminary to transplantation].

A study was conducted of 50 cadavers in children and 25 immature dogs to discover more precisely the vascularization of the lower end of the femur and the iliac crest. It was concluded that it is possible to transplant these epiphyses with anastomosis of three pedicles in the same line. It was also concluded that the vascularisation differs before and after the formation of the bony epiphyseal nucleus. The cartilaginous canals which preclude the vascularisation of hyaline cartilage, the formation of the bony nucleus and the nutrition of the germinal layers of the growth plate are described.

Animals↗