Library

feed icon rss

Your email was sent successfully. Check your inbox.

An error occurred while sending the email. Please try again.

Proceed reservation?

Export
  • 11
    ISSN: 1279-8517
    Keywords: Cervical spine ; Head
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Résumé Les auteurs ont déterminé la situation du centre de gravité de 6 têtes formolées isolées par méthode de suspension en se référant aux travaux de l'anthropologue bordelais Beauvieux qui considère que la ligne nasion-opisthion (racine du nez-bord postérieur du trou occipital) caractérise l'horizontalité de la tête quelle que soit l'espèce considérée. Ce centre de gravité se situe au milieu de la ligne nasion-inion (racine du nez-protubérance occipitale externe) en arrière de la selle turcique, au-dessus et légèrement en avant du conduit auditif externe (CAE). De profil, l'axe de gravité abaissé à partir de ce centre passe en avant du rachis cervical qui s'équilibre grâce à un levier inter appui dont les deux bras de levier sont égaux quand le regard est dirigé à 30o vers le bas par rapport à l'horizontale, véritable position de référence du rachis cervical dans le plan sagittal.
    Notes: Summary The authors have determined the position of the center of gravity of six isolated formolized heads by the suspension method, based on the work of the Bordeaux anthropologist, Beauvieux; in his opinion, the nasion-opisthion line (root of nose to posterior edge of the foramen magnum) characterizes the horizontality of the head, irrespective of species. The center of gravity is situated at the middle of the nasion-inion line (root of nose to external occipital protuberance), behind the sella turcica, above and slightly in front of the external auditory meatus. In profile, the axis of gravity falls on leaving the center of gravity and passes in front of the cervical spine, which remains in balance thanks to a fulcrum lever whose two arms are equal when the gaze is directed 30o downwards in relation to the horizontal. This is the true reference position for the cervical spine in the sagittal plane.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 12
    Electronic Resource
    Electronic Resource
    Springer
    Surgical and radiologic anatomy 5 (1983), S. 141-151 
    ISSN: 1279-8517
    Keywords: Lumbar radicular canal ; Lateral recess ; Lumbar root ; Computerized tomography
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Résumé Le canal radiculaire est défini comme la portion latérale du canal rachidien dans laquelle circule la racine depuis sa sortie du cul-de-sac dural jusqu'au foramen (ou trou de conjugaison) compris. Cet hémicylindre creux, ouvert vers la ligne médiane, peut être divisé en trois portions: rétrodiscale, parapédiculaire (récessus latéral à proprement parler) et foraminale. Les différentes parois (notamment du récessus latéral) sont décrites. Une revue des principaux moyens d'exploration radiographiques du canal radiculaire normal est au mieux précisée grâce à ces bases anatomiques. Enfin, après cette description statique du canal radiculaire lombaire moyen et de ses variations selon l'étage lombaire ou sacré considéré, les auteurs exposent les modifications entraînées par la mise en charge, l'extension et la flexion du rachis lombaire.
    Notes: Summary The radicular canal is defined as the lateral part of the spinal canal containing the spinal nerve root from its point of emergence through the dural envelope up to and including the intervertebral foramen. The radicular canal, resembling a hollow hemicylinder opened towards the midline, can be divided into three parts, i.e. retrodiscal, parapedicular (the lateral recess per se) and foraminal. The different walls of the canal (notably those of the lateral recess) are described. A review of the main types of roentgenographic exploration of the radicular canal are presented based on these anatomical findings. Finally, this static description of the typical lumbar radicular canal and its variations according to the lumbar or sacral level under consideration is followed by a presentation of the modifications which arise in the upright position and during extension and flexion of the lumbar spine.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 13
    Electronic Resource
    Electronic Resource
    Springer
    Surgical and radiologic anatomy 5 (1983), S. 2-4 
    ISSN: 1279-8517
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 14
    ISSN: 1279-8517
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Conclusion L'intersection de ces axes donnent avec le plan sagittal médian, la position des Centres Instantanés de rotation (CIRS) très antérieure par rapport aux articulations sacro-iliaques, au voisinage de la symphyse pubienne, comme cela avait été présenté dans l'étude sur bassins isolés et déjà évoqué par Weils [32]. La position exacte des axes, varie avec les sujets mais leur situation est assez constante dans une zone qui ne correspond pas aux plans conventionnels. La notion d'un axe frontal passant par les articulations ou au voisinage immédiat, décrits par les anciens auteurs doit être abandonnée. L'amplitude des déplacements varie avec les sujets mais le sens des déplacements sont constants. La bassin par l'intermédiaire des articulations sacro-iliaques est capable de présenter des déplacements symétriques et dissymétriques des os iliaques par rapport au sacrum. Dans les 2 cas de flexion et d'extension, la translation des os iliaques se fait vers l'avant traduisant un déverrouillage antérieur articulaire qui permet la rotation, surtout notable (12°) dans la flexion ou nutation. Le modèle articulaire ne peut actuellement être défini de façon générale. Une étude statistiquement significative d'un plus grand nombre de sujets est nécessaire. Le caractère long et fastidieux des opérations de saisies rend nécessaire un système automatisé de lecture de radiographies pour en faire une méthode utilisable en exploration fonctionnelle courante. Malgré l'importance des moyens d'analyse et de calcul mis en œuvre dans cette étude, les articulations sacro-iliaques restent encore bien mystérieuses et la compréhension exacte de leur fonctionnement reste encore incomplète.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 15
    ISSN: 1432-1920
    Keywords: Disk herniation ; CT ; CT diskography ; Postoperative changes
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Thirty-three patients with recurrent sciatica after lumbar-disk surgery were studied for recurrent herniated nucleus pulposus (HNP) by CT alone and CT-diskography (CTD). Twenty-six patients underwent surgical reexploration allowing correlation with CTD. CTD made a correct diagnosis of recurrent HNP in twenty-one patients showing an extravasation of the contrast medium from the disk space into the medullary canal. In two cases CTD was positive for recurrent HNP but surgery showed only fibrosis. The amount of contrast leak was very small in these two cases along the posterior common longitudinal ligament, and the junction with the disk was very narrow. Because of their clinical presentation three patients with negative studies were operated upon. One showed only fibrosis and the two others showed an associated disk fragment. Among the twenty-one true-positive cases, seven showed a combination of recurrent HNP and scarring. Contamination of CSF by the contrast medium through the dura was observed in two patients. Although a prospective comparative study between CTD and IV-contrast-enhanced CT is necessary, CTD appears to be a useful diagnostic procedure for recurrent HNP after surgery of the lumbar spine.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 16
    Electronic Resource
    Electronic Resource
    Springer
    Neuroradiology 31 (1990), S. 549-551 
    ISSN: 1432-1920
    Keywords: Spine MR ; Spine tumor
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary The authors studied the usefulness of MR imaging in the diagnosis of an osteoid osteoma occuring within the C4 left uncinate process. It was detected by scintigraphy and diagnosed by CT. On T2-weighted MR images the nidus showed a very low signal intensity with an increased signal within the adjacent end-plates. This pattern was misleading and more suggestive of degenerative disk disease.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 17
    ISSN: 1432-1920
    Keywords: Key words Vertebral haemangioma ; Interventional radiology ; Vertebroplasty
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract We report a 17-year-old asymptomatic patient with a partially collapsed seventh cervical vertebra due to a haemangioma revealed by conventional radiographs performed for army enrolment. Given radiological evidence of aggressiveness, percutaneous vertebroplasty by injection of methyl methacrylate cement was performed to prevent complications. CT a year later showed no progression of the lesion. The patient remains asymptomatic.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 18
    ISSN: 1432-1920
    Keywords: Vertebral haemangioma ; Interventional radiology ; Vertebroplasty
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract We report a 17-year-old asymptomatic patient with a partially collapsed seventh cervical vertebra due to a haemangioma revealed by conventional radiographs performed for army enrolment. Given radiological evidence of aggressiveness, percutaneous vertebroplasty by injection of methyl meth-acrylate cement was performed to prevent complications. CT a year later showed no progression of the lesion. The patient remains asymptomatic.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 19
    ISSN: 1432-1068
    Keywords: Spine fractures ; Surgery ; Hartshill-Dove rectangle
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Summary Forty thoracolumbar fractures, including thirty-two with neurological complications, were stabilized with the Hartshill-Dove rectangle. Its configuration explains its better rigidity compared to two separated Luque rodes. With this device one can only neutralise the reduction, without compression or distraction. When neurological signs exist, we performed a wide laminectomy or a posterolateral decompression before the osteosynthesis. We can contour the rectangle with whatever profile we desire. Double wires were the only way of fixing the rectangle. The number of stabilized levels depends on: the site of lesion: seven levels fixed in the thoracic spine and four to five in the lumbar spine, the type of fracture: more levels were instrumented for translation or compression-distraction fractures than for compression ones. Posterolateral graft is extended only one level above and one down the fracture. Local and regional kyphosis was corrected by more than fifty per cent. Translation were perfectly corrected 16 out of 19 times. We had only one neurological complication which was due to a postoperative epidural hematoma and not to the manipulation of the wires. The main ways to avoid iatrogenic complications are to operate under medullary monitoring, to perform wide windows on neural arches and to manipulate wires with high precision. The best indication for this very simple device are: on thoracic spine: all fractures with neurological deficit. If there is no neurological trouble: translations, contiguous lesions, vertebral kyphosis over 30° and the association with a sternal fracture; on lumbar spine: translation and compression-distraction fractures. With the compression fractures we prefer to adopt pedicular screwing or anterior arthrodesis.
    Notes: Résumé Quarante fractures thoracolombaires, la plupart compliquées de troubles neurologiques (32), ont été ostéosynthésées par cadre de Hartshill-Dove. La configuration de ce cadre explique une plus grande rigidité que deux tiges séparées de Luque. Avec ce type de matériel, on ne peut faire que des montages en neutralisation, sans possibilité de compression ni de distraction. Quand il y a trouble neurologique, une large laminectomie, voire une décompression postéro-latérale, précède l'ostéosynthèse. On donne au cadre le galbe de profil désiré; les fils doubles ont été les seuls moyens d'instrumentation utilisés; le nombre de niveaux instrumentés dépend : du segment opéré (7 niveaux en thoracique contre 4 ou 5 en lombaire) et du type de lésion (plus de segments instrumentés pour les translations ou les compressions-distractions que pour les compressions pures). La greffe postérolatérale ne sera localisée qu'en regard de la fracture. Les cyphoses locales et régionales sont corrigées de plus de 50 %; les translations sont corrigées 16 fois/19. Une seule aggravation neurologique est notée dans la série : elle n'est pas due au passage des fils mais à un hématorachis secondaire. Pour éviter les lésions neurologiques iatrogènes, il faut opérer sous monitorage médullaire, réaliser de larges fenêtres et passer les fils métalliques selon les principes techniques décrits. Les meilleures indications de ce matériel très simple d'utilisation sont : en thoracique : toutes les fractures compliquées de troubles neurologiques; s'il n'y a pas de trouble neurologique, les translations, les lésions étagées, les cyphoses vertébrales supérieures à 30°, l'association à une fracture du sternum sont les meilleures indications. En lombaire : les translations et les compressions-distractions. Dans les compressions pures, il faut associer un vissage pédiculaire ou un temps d'arthrodèse antérieure.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 20
    Electronic Resource
    Electronic Resource
    Springer
    European journal of orthopaedic surgery & traumatology 10 (2000), S. 177-181 
    ISSN: 1432-1068
    Keywords: Cervical spine ; Anterior approach ; Complications ; Dysphagia ; hoarseness
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary The authors present a retrospective study of 535 consecutive anterior approaches to the cervical spine back to 5 years. The data were analyzed for post-operative complications. This surgical procedure has been commonly used for more than 40 years, but the post-operative complications due to the anterior approach itself were presented with few accompanying statistics, with various and contradictory results. Injury to nearly all of the structures has been reported in the literature, the more frequent problems are hoarseness and dysphagia; other complications include perforation of the oesophagus, hematomas, vascular injury⋯ Analysis of this data allows to understand better the specific problems related to this surgical approach, and to suggest precautions at each stage of the course of exposure of cervical vertebrae.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...