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P Lecestre, P Poilbout, A Dambreville, D Vial
We reviewed 183 threaded rings at a mean 7 years follow-up. Poor résults are frequent: 34 % had been revised and 50 % have radiographic migration, essentially with proximal migration of the cup. Generally, we reoperated with other cememtless implants. The type of threaded cup does not matter (spheric or conic). Only the duration of follow up seems significant. We think that biomecanical strains, rather than physiology, explain these numerous migrations. We have therefore abandoned threaded cups in favour of porous-coated impacted cups...
December 1995: European Journal of Orthopaedic Surgery & Traumatology: Orthopédie Traumatologie
J F Uhl, O Plaisant, O Ami, V Delmas
The aim of this paper is to show the major role played by the new computerized imaging tools available today in the fields of morphology and anatomy. For anatomical studies or educational purpose, they enhance the classical techniques. The 3D reconstruction, already used in daily clinical practice, will be the basis for computation of validated volumetric protocols enhancing our diagnosis and prognosis means. It is also a fantastic educational tool: the interactivity makes it simple, efficient, attractive and easily accessible and diffusable...
March 2006: Morphologie: Bulletin de L'Association des Anatomistes
Jean Dubousset, Georges Charpak, Irène Dorion, Wafa Skalli, François Lavaste, Jacques Deguise, Gabriel Kalifa, Solène Ferey
Close collaboration between multidisciplinary specialists (physicists, biomecanical engineers, medical radiologists and pediatric orthopedic surgeons) has led to the development of a new low-dose radiation device named EOS. EOS has three main advantages: The use of a gaseous X-ray detector, invented by Georges Charpak (Nobel Prizewinner 1992), the dose necessary to obtain a 2D image of the skeletal system has been reduced by 8 to 10 times, while that required to obtain a 3D reconstruction from CT slices has fallen by a factor of 800 to 1000...
February 2005: Bulletin de L'Académie Nationale de Médecine
C Delaunay, A I Kapandji
INTRODUCTION: The authors review and analyze a series of patients treated by total hip arthroplasty with a Karl Zweymüller threaded cup. METHODS: In a group of 115 consecutive primary total hip arthroplasties with the Karl Zweymüller cementless prosthesis, 100 acetabular screw rings have been retrospectively studied with a 5.8 years average follow-up (range: 40 to 96 months). RESULTS: The clinical results were graded excellent and good in 97 per cent, fair in one and poor in two (2 per cent)...
1994: Revue de Chirurgie Orthopédique et Réparatrice de L'appareil Moteur
J M Salagnac
The "Fonctionnal Lingual Elevator" changes the lingual situation and dynamic. The tongue becomes in a higher and forwards situation. This new situation generates biomécanics modifications of the labio-lingual and lingual pharyngal complex which induce secondary structural modifications.
1987: Revue de Stomatologie et de Chirurgie Maxillo-faciale
J H Andersen, O Gaardboe-Poulsen, E M Jensen
The rotator cuff syndrome is defined as a cronical pain syndrome, originating from the rotator cuff with characteristic pain and referred pain. Disorders evolving from the rotator cuff and the rotator muscles comprise between 70 og 90% of the shoulder disorders. The rotator cuff syndrome may be of occupational origin, particularly in heavy work with tasks at or above shoulder level, e.g. shipyard welders and plate workers. Biomecanically surveys show that continuous blood flow in the rotator muscles ceases at about 30 degrees of flexion or abduction of the upper arm...
September 11, 1989: Ugeskrift for Laeger
C Gros, J M Privat, P Frerebeau, F Bonnel, M Bazin, J Benezech
The authors report a new technique in arthrodesis of the sub-occipital spine which has been experienced since 1973 in case of metastases at CI-C2 level. An occipitovertebral metal plate, inverted Y shaped has been realised after anatomical and biomecanical studies. It is adapted to the occipito-vertebral curvature and screwed in the articular processes of C3 and C4 (14 mm screw), and in the pedicles of C2 (32 mm screw). At the upper part, the occiptal ridge offers fixation by 12 and 14 mm Muller's screw. In addition CI is attached to the plate, by a nylon thread...
May 1975: Neuro-Chirurgie
B Friedrich, W Romen
No abstract text is available yet for this article.
March 1975: Helvetica Chirurgica Acta
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