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  • 1
    ISSN: 1279-8517
    Keywords: Neonatal hip ; Congenital dislocation of the hip ; Anatomy of the hip
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Therapeutic success in dysplasia and congenital dislocation of the hip depends on an early diagnosis. The physiopathology remains very debatable and several concepts are propounded. For a better physiopathologic understanding, the authors have carried out a study of the morphology and development of 22 pre- and neonatal hips. At first, the acetabulum is cartilaginous and distorted by the moving femoral head; this acetabulum is histologicaly affected by the femoral pressure. The pathologic hip is characterized by defective posterior bony coverage of the femoral head by the acetabulum. The acetabulum ossifies during the 3 months following birth, forming a cup-like cavity under the pressure of the femoral head. Therefore, neonatal screening tests such as sonography must take place in the first weeks of life.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    Surgical and radiologic anatomy 17 (1995), S. 255-262 
    ISSN: 1279-8517
    Keywords: Popliteal artery ; Knee flexion ; MRI
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Résumé Les auteurs ont étudié les modifications morphologiques de l'a. poplitée lors de la flexion du genou. L'étude radio-anatomique comporte l'analyse d'artériographies de profil pour différents degrés de flexion articulaire, puis des dissections pour objectiver les structures anatomiques en cause dans l'adaptation morphologique de l'a. poplitée au mouvement articulaire. Chez 5 sujets volontaires, non athéromateux, 15 séquences angiographiques en I.R.M. ont été réalisées au niveau des genoux en position d'extension et de flexion. Les artériographies et l'angio-I.R.M. montrent qu'au fur et à mesure que le degré de flexion articulaire augmente, des flexuosités apparaissent au niveau de l'a. poplitée haute supra-articulaire alors que les parties moyenne et basse de l'a. poplitée gardent une courbure harmonieuse, s'écartant du plan postérieur de l'articulation. Les dissections semblent montrer que cette adaptation artérielle se fait entre deux points fixes, l'un proximal : le canal des adducteurs, l'autre distal : l'origine de l'a. tibiale antérieure. L'angio-I.R.M. paraît une voie d'avenir dans l'exploration des vaisseaux des membres. L'opposition comportementale des différents segments de l'a. poplitée permet de mieux comprendre la physiopathologie des traumatismes et des malpositions de l'axe artériel poplité.
    Notes: Summary We studied the morphological modifications of the popliteal artery during knee flexion. An anatomical, radiological study consisted of analysis of lateral arteriographs in different degrees in joint flexion followed by dissection to reveal the anatomical structures involved in the morphological adaptation of the popliteal artery to joint movement. In five non-atheromatous volunteers, 15 MRI angiographic sequences were done at the level of the knee in extension and flexion. The arteriographs and angio MRI showed that as joint flexion increased tortuosities appeared in the supra-articular upper popliteal artery while the middle and lower parts of the popliteal artery kept an even curve retracted from the posteriror surface of the joint. Dissection seemed to show that this arterial adaptation occurred between two fixed points, one proximal (the adductor canal) and the other distal (the origin of the anterior tibial artery). Angio MRI seems to be a future route for the assessment of the limb vessels. The contrasting behaviour of the different segments of the popliteal artery allows us to understand better the pathophysiology of trauma and malpositions of the popliteal arterial trunk.
    Type of Medium: Electronic Resource
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  • 3
    ISSN: 1279-8517
    Keywords: Neonatal hip ; Congenital dislocation of the hip ; Anatomy of the hip
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Résumé Le succès du traitement des dysplasies et luxations congénitales de hanche est lié à la précocité du diagnostic. La physiopathologie de ces affections reste discutée et plusieurs conceptions ont pu être proposées. Les auteurs ont réalisé une étude structurale et évolutive de 22 hanches anté et néonatales afin de mieux comprendre cette physiopathologie. Dans les périodes anté- et néonatale, l'acétabulum est cartilagineux, déformable sous l'action d'une tête fémorale en mouvement et il est le siège de remainements histologiques dépendant de la pression exercée par l'épiphyse fémorale. L'ossification de l'acétabulum s'effectue lors du ler trimestre postnatal, construisant la cavité articulaire sous l'effet de la pression de la tête du fémur. Dysplasies et luxations apparaissent comme un défaut de couverture postéro-supérieure de l'épiphyse fémorale par l'acétabulum. Le dépistage d'anomalies, notamment par l'échographie, devra donc être réalisé dans les premières semaines de la vie.
    Notes: Summary Therapeutic success in dysplasia and congenital dislocation of the hip depends on an early diagnosis. The physiopathology remains very debatable and several concepts are propounded. For a better physiopathologic understanding, the authors have carried out a study of the morphology and development of 22 pre- and neonatal hips. At first, the acetabulum is cartilaginous and distorted by the moving femoral head; this acetabulum is histologicaly affected by the femoral pressure.The pathologic hip is characterized by defective posterior bony coverage of the femoral head by the acetabulum. The acetabulum ossifies during the 3 months following birth, forming a cup-like cavity under the pressure of the femoral head. Therefore, neonatal screening tests such as sonography must take place in the first weeks of life.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
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  • 4
    Electronic Resource
    Electronic Resource
    Springer
    European radiology 8 (1998), S. 1030-1039 
    ISSN: 1432-1084
    Keywords: Key words: Hip ; Neonatal hip ; Hip anatomy ; Hip dislocation ; Hip ultrasound
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract. Therapeutic success in treating congenital dysplasia of the hip is associated with early diagnosis, but the specific neonatal anatomy makes screening difficult. The purpose of this study was to determine whether this specific neonatal anatomy is taken into account by current ultrasound (US) techniques. Anatomic studies were performed on 22 hips, US examinations on 7750 neonatal hips; 2370 untreated hips were reexamined at 1 month by US and at 3 months by X-ray. The transformation of the neonatal cartilaginous acetabulum into an osseous cavity is dependent on harmonious metaphyseal growth and a properly seated femoral head. Defects in the acetabular roof, together with displacement of the femoral head, cause an abnormal anatomical relationship which leads to further deformities. The described sonographic techniques give only partial information on these specific abnormalities. The sonographic monoplanar methods as used in Graf's technique, which relies largely on acetabular development, lead to difficulties in assessing posterior coverage of the femoral head and difficulties in assessing alignment of the metaphyseal weight-bearing surface with the femoral head. Combining Graf's morphological analysis with Novick's dynamic technique enables one to more accurately define the relationship of the femoral head and the acetabulum and increases the reliability and predictive value of the examination, while reducing the number of doubtful cases. This makes screening cost effective.
    Type of Medium: Electronic Resource
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  • 5
    Electronic Resource
    Electronic Resource
    Springer
    Surgical and radiologic anatomy 13 (1991), S. 81-87 
    ISSN: 1279-8517
    Keywords: Anatomy ; Conservative surgery ; Spleen
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Résumé 100 pièces pancréatico-spléniques, prélevées par autopsie, ont été traitées par la méthode d'injection-corrosion. L'artère splénique se terminait le plus souvent dans l'épiploon pancréatico-splénique dans 64 % des cas, contre 32 % dans le segment pancréatique et 4 % dans le segment hilaire. Dans 84 %, l'artère se bifurquait en deux artères lobaires, supérieure et inférieure, dans 16 % des cas, elle se trifurquait. La longueur du pédicule s'échelonnait entre 20 et 60 mm avec une moyenne de 35 mm. Les ramifications de l'artère splénique constituaient trois étages successifs : les artères primaires ou artères lobaires destinées chacune à un lobe; les artères secondaires ou artères segmentaires se distribuant chacune à un des segments constitutifs d'un lobe splénique; les artères tertiaires ou sous-segmentaires se rendant aux différents territoires qui s'empilent les uns sur les autres à l'intérieur d'un segment splénique. Nous avons noté au total 9 cas d'anastomoses extraparenchymateuses et 32 anastomoses intraparenchymateuses réalisant soit des anastomoses interramaires, soit des anastomoses intersegmentaires, soit des anastomoses interlobaires beaucoup plus rarement. Ces constatations permettent d'introduire la notion de plans intersegmentaires supérieur et inférieur et de plan interlobaire. Ce dernier plan est quasi « exsangue » alors que les plans intersegmentaires restent paucivasculaires. Ces différents plans autorisent actuellement une chirurgie conservatrice de la rate.
    Notes: Summary 100 pancreatico-splenic blocks obtained at autopsy were treated by the injection-corrosion method. The splenic artery ended in the lienorenal ligament in 64% of cases, in the pancreatic segment in 32% and in the hilar segment in 4%. In 84% of cases, the artery divided into two lobar arteries, upper and lower. In 16% the artery trifurcated. The pedicle was 20 to 60 mm long (mean 35 mm). The branches of the splenic artery were in three successive stages: the primary or lobar arteries were each associated with a lobe; the secondary or segmental arteries each supplied one of the constituent segments of a lobe; the tertiary or subsegmental arteries supplied the various areas which made up a splenic segment. Nine cases of extraparenchymal anastomoses were found. There were 32 intraparenchymal anastomoses, being either interlobar or intersegmental. There were a few interlobar anastomoses. The findings support the notion of upper and lower intersegmental and interlobar planes. The latter is almost avascular, while the former has limited vascularity. These planes make conservative surgery of the spleen possible.
    Type of Medium: Electronic Resource
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