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Biomedical subjects

Y Allieu

Publications and source records attributed to Y Allieu.

At least 127 records · Page 7Linked to original sources
PubMed1982

[Traumatic etiology of Kienboeck's disease. (Perilunate subluxations and semilunate necrosis)].

The authors have studied the incidence of lunate necrosis in 110 perilunate dislocations. Twenty-one cases (19%) developed a necrosis. The classification into three types, according to the amount of damage to the perilunar ligaments, is of prognostic value. There is no risk of necrosis in type 1, 17% in type II, and 50% in type III. An associated fracture of the scaphoid does not modify the risk. In neglected lesions, reduction of the lunate dislocation should be attempted, even at a late date, the risk of necrosis then being 50%. Surgical reduction increases the risk of secondary necrosis to a greater extent than does orthopedic treatment, but it is generally use in the most complex cases too. The authors advocate a closed reduction with percutaneous pin fixation.

Adolescent↗
PubMed1982

Osseous metastases in the hand. A general review of three cases.

Osseous metastases in the hand are rare. The authors report 3 cases, bringing the total number of reported cases up to 106. They affect mainly men; their clinical features are local swelling and pain frequently ascribed to a trauma. The diagnosis is often mistaken, many patients being initially treated for a distal felon. Distal phalanx is the main involved area, with irregular osteolysis and cortical destruction. The etiology is quite different from that of metastases to other bones: bronchopulmonary cancer is by far the most frequent with 46% of cases, followed by breast cancer (15%). Other types of cancer are much less frequently involved. The evolution is sombre; average life expectancy is 3 1/2 months. Treatment may involve, as needed, distal digital amputation on antalgic radiotherapy.

Aged↗
PubMed1982

Arterial vascularization of the trapezo-metacarpal joint.

The authors have dissected 24 hands previously injected with a mixture of micropaque gelatin and minium. The arterial supply of the trapezo-metacarpal joint is provided through an anastomotic circle connecting four networks (dorsal, volar, ulnar and radial). These four networks are all supplied by branches from the radial artery. Each network has one main artery and several other additional smaller arteries. Even when the radial artery has an abnormal direction, the same type of vascular supply for the trapezo-metacarpal joint is preserved, but its sources are different.

Aged↗
PubMed1982

First results of arthroplasty of the wrist by Swanson's implant. Twenty-five cases.

We have carried out 25 arthroplasties of the wrist using the Swanson implant since 1976. The indications were primarily in rheumatoid arthritis. The operation was done for severe pain and deformity of the wrist. Results were analysed in 19 patients with a follow-up of 21-54 months. Post-operative pain relief is good. Although mobility is fair, the return of the balance of wrist motions has been recovered. The results of the Swanson implant arthroplasty are compared to dorsal synovectomy and wrist arthrodesis.

Adult↗
PubMed1980

[The rheumatoid foot. Origin of deformations].

Deformations of the foot are a logical and predictable function of the biomechanics of the foot and the constraints undergone by the articulations of the foot, that are unstabilized by the inflammatory process. They result from the combination of three factors : anevolutive teno-articular synovitis, predictible forces (the weight of the extrinsic muscle, the anti-physiological foot), and the congenital morphotype of the foot. Typical deformations (peroneal " coup de vent " of the toes, triangular metatarsus), differ on the clinical level in keeping with the morphotype but respond to the same mechanism. The " coup de vent peronier " remains the most characteristic deformation and is furthered by the excentric action of the extrinsic muscles, and in particular the foot muscle. The common denomination of deformations of the back part of the foot is represented by the valgus calcanean, linked to the action of the weight on the orsion forces that is more or less modified. A better knowledge of the cause of these deformations would make it possible to avoid, if not their apparition, at least their worsening.

Adult↗
PubMed1979

[Entrapment neuropathies of the posterior interosseous nerve. Clinical findings and surgical treatment (author's transl)].

Radial nerve compression palsies at the elbow and forearm result in a lower radial nerve palsy whose clinical data are generally a hardly diagnosed dissociated radial palsy, or a rough paresis in the range of epicondylalgia. Apparently spontaneous non traumatic compressions are rare. They are essentially due to lipomas, to fibromas, or sometimes to synovial cysts of the elbow. In the course of rheumatoid arthritis, palsies must be isolated. Besides, there is an actual inflammatory canal syndrome of epicondylalgias range, in which radial nerve paresis must be investigated. Traumatic compressions are essentially due to Mongeggia fractures. Radial nerve injury at the elbow is explained by a real radial canal being, in which the nerve is entrapped and where it is especially fixed on a level of its entering the supinator brevis. Any addition of a pathological element in that area (traumatic or not, tumoral or inflammatory) will be able to involve a compression and a nerve stretching, on a level of the arch of Frohse, essentially. Surgical treatment in non traumatic compressions enables to give the etiological diagnosis and to warrant healing by opening the radial canal excising the added pathological element. To achieve a total surgical operation, in epicondylalgias, the surgeons will have to open this radial canal, as well. Traumatic compressions will be explored only in cases of non spontaneous recovery, after treating the osteoarticular injury.

Arteritis↗
PubMed1978

[Direct surgery of traumatic injuries of the radial nerve (author's transl)].

33 cases of traumatic lesions of the radial nerve are reported. Etiological features, prognosis, surgical treatment including micro-surgical techniques, leading to a larger indication of direct nerve repair are discussed. Recent nerve wounds must be repaired early. Surgical exploration will be carried out on unopened lesions when no recovery occurs within two months. According to the lesion, peri-fascicular neurolysis or fascicular resection-graft will be achieved. Tendon transfer techniques will be proposed only after one or two years without recovering, according to the level of the injury.

Adolescent↗