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Biomedical subjects

J P Chevrel

Publications and source records attributed to J P Chevrel.

At least 37 records · Page 2Linked to original sources
PubMed1990

Periosteal flaps: anatomical bases of sites of elevation.

An anatomical study made in 25 injected fresh subjects made it possible to map out the periosteal flaps capable of being raised on the limbs. The preferred donor sites are the distal third of the humerus, the iliac fossa and the distal third of the femur. At the last 2 sites composite osteo-periosteal or musculo-osteo-periosteal flaps can be raised. These technical possibilities illustrate the importance of experimental studies which have shown the osteogenic capacity of grafts of vascularized periosteum.

Femur↗
PubMed1987

A case of ectopic right renal artery: a radiologic-anatomic variant.

The authors report the anatomic and radiologic findings in a case of ectopic origin of the right renal artery in front of the T11-12 intervertebral disc. This seems to be an extremely rare variant, and the rarity of the reported cases is such as not to allow definition of a percentage incidence. An explanation of this variant may be found in modern concepts of the organogenesis of the renal artery.

Humans↗
PubMed1986

The anatomic basis of the fascio-cutaneous flap of the posterior interosseous artery.

The authors present a study of the surgical anatomy of the posterior interosseous artery (PIA) in 70 cases to establish the anatomic basis of a new forearm fascio-cutaneous flap, the posterior interosseous flap which has been described by one of the authors (AC Masquelet). The PIA was verified in every case. Its course corresponds to a line drawn from the lateral epicondyle of the humerus to the head of the ulna, i.e. to the septum between the extensor carpi ulnaris and extensor digiti minimi proprius muscles. The artery, whose average caliber is 1.7 mm, gives off 7 to 14 cutaneous branches in its course. The point of emergence of the artery in the posterior aspect of the forearm corresponds to the junction between the upper and middle thirds of the line from the epicondyle and the ulnar head. The PIA anastomoses with the anterior interosseous artery and the dorsal carpal network in 98.6% of cases. The artery remains closely related to the deep branch of the radial nerve and is crossed by the branches of this nerve to the extensor carpi ulnaris muscle. The cutaneous distribution of the PIA extends from elbow to wrist, centered on the epicondylarulnar line, with an average breadth of 5 cm. Twelve operations have already been performed using the posterior interosseous flap, 2 with a direct pedicle and 10 with a retrograde pedicle, and all survived completely.

Aged↗
PubMed1986

Morphology and functional anatomy of the first dorsal interosseous muscle of the hand.

The aim of this study, based upon anatomical and electrophysiological evaluation, was to identify the relationship between the morphology and physiology of the first dorsal interosseous muscle of the hand, which should be distinguished from the other dorsal interosseous muscles of the hand. Its morphology, distal attachments and physiology have been subject of numerous studies yielding conflicting results. The study reported herein was made on the basis of anatomical and electrophysiological investigation. Most of the dissections (20/34) were made on fresh specimens. Results of this study confirm the existence of the deep and superficial heads of the 1st dorsal interosseous muscle. The muscle is attached distally to the palmar plate of the metacarpophalangeal joint, the lateral tubercle of the base of the proximal phalanx of the index and the interosseous hood. Conversely, the muscle did not show any attachment to the oblique radial wing of the extensor apparatus in our dissections. The deep head of the muscle causes mainly flexion pinch between thumb and index superficial head abduction. Within the complex physiology of the various types of apposition of thumb and index, the dorsal interosseous muscle acts as a stabilizer. The results of electrophysiological study confirmed most of the interpretations deduced from morphological investigation.

Electrophysiology↗
PubMed1985

[Superficial cancer of the stomach].

The authors report 17 cases of superficial carcinomas collected amongst a series of 100 gastric carcinomas. Three principal points are analysed: clinical picture, diagnostic and treatment. Clinical problems indicate the multiplicity of classifications used and their sometimes incomplete nature. This led the authors in 1970 to develop a classification with 4 parameters, derived from the T N M classification and from that of Gutmann. The diagnostic problems raises yet again for these superficial carcinomas the need for routine screening which is the only way to increase early diagnoses, and hence the effectiveness of treatment. The therapeutic problem is concerned with the discussion of the limitations of wide excision as a matter of principle.

Adult↗
PubMed1985

[Cancer of the so-called "gastric stump". Review of the literature apropos of 4 cases].

On the basis of four cases of cancer of the stomach occurring after surgery for benign gastroduodenal lesions, the authors analyse 1690 cases published in the literature. The development of these cancers, which occur much more frequently than in the normal population, is favoured by all of the local pathophysiological consequences of the initial operation, although no one factor is predominant. These cancers have a very poor prognosis, with a mean 5 year survival of 6.9%. These very disappointing results can only be improved by early detection as a result of systematic endoscopic follow-up.

Adenocarcinoma↗
PubMed1983

[The excluded jejunal loop in the shape of a question mark. A simplified technic].

The question mark-shaped loop is a simplified excluded loop which combines the advantages of being prepared as rapidly as the Tomoda procedure modified by Hivet and of having the same functional benefits as Roux's Y-shaped loop. It is essentially an omega-shaped loop the afferent segment of which is severed a few centimetres upstream of its higher point. The two sections can be sutured manually or with mechanical staplers. The loop can be brought up through the mesocolon as easily as the Y-shaped loop without dissection of the mesentery and can be used to re-establish continuity after total gastectomy. It can also be passed through the mesocolon and behind the stomach to perform hepato-jejunal anastomoses. Finally, it can be used for double or triple derivations in the conservative treatment of chronic pancreatitis.

Common Bile Duct↗