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  • External fixator  (2)
  • Key words Bone graft  (1)
  • Vascularized bone graft  (1)
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  • 1
    Electronic Resource
    Electronic Resource
    Anatomic factors in the femoral implantation of the Ilizarov external fixator (1987)
    Springer
    Surgical and radiologic anatomy 9 (1987), S. 5-11 
    Details
    ISSN: 1279-8517
    Keywords: Ilizarov ; External fixator
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Résumé La méthode d'Ilizarov de fixation externe des lésions des membres avec compression ou détraction met en évidence des possibilités nouvelles d'ostéogenèse. Sa réalisation avec double embrochage horizontal sur plusieurs anneaux extérieurs nécessite des précautions pour éviter des lésions vasculo-nerveuses et articulaires. Le travail, basé sur des coupes anatomiques radiographiées après opacification du système artériel, permet de proposer des règles d'implantation des broches. La pénétration des broches antéro-internes de la cuisse doit se faire à 2 cm en avant de la ligne de projection de l'artère fémorale, entre le milieu de l'arcade crurale et le bord postérieur du condyle interne. La pénétration des broches postéro-externes de la cuisse doit se faire à 2 cm en dehors de la ligne de projection du nerf sciatique, entre le milieu de la distance trochantéro-ischiatique, le sommet du creux poplité et la face postérieure de la tête péronière.
    Notes: Summary Ilizarov's method of external fixation with compression or distraction for lesions of the limbs demonstrates new possibilities in osteogenesis. Its performance with double horizontal pinning on several external rings calls for precautions to avoid lesions of the vessels, nerves and joints. This study, based on anatomic sections radiographed after opacification of the arterial system, makes it possible to propose rules for insertion of the pins. Insertion of the anteromedial pins of the thigh should be made 2 cm in front of the line of projection of the femoral artery, between the middle of the inguinal ligament and the posterior margin of the medial condyle. Insertion of the posterolateral thigh pins should be made 2 cm lateral to the line of projection of the sciatic nerve, between the center of the ischiotrochanteric interval, the apex of the popliteal fossa and the posterior aspect of the head of the fibula.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02116848
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Anatomic basis for implantation of the Ilizarov system in the leg (1988)
    Springer
    Surgical and radiologic anatomy 10 (1988), S. 283-289 
    Details
    ISSN: 1279-8517
    Keywords: Ilizarov ; External fixator ; Tibia
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Résumé L'implantation d'un fixateur externe circulaire selon la méthode d'Ilizarov nécessite la mise en place d'au moins 8 broches transfixiantes. Les dangers vasculo-nerveux et la nécessité de laisser libres les loges musculaires postérieure et latérale sont la raison de cette étude. Le travail s'appuie sur des coupes sériées radiographiques après injection de la totalité du système artériel. Il a ainsi été déterminé 2 plans de broches de référence: 1 plan postéro-latéral et 1 plan latéro-médial. Les points d'implantation des broches utilisent les rayons osseux classiques du squelette jambier. L'adjonction de broches à olive doit se faire sur un membre ré-axé et stabilisé. L'imprécision de visée induite par la structure osseuse et la forme de la broche ont conduit à déterminer des zones interdites où toute transfixion est dangereuse. Le concept de pyramide vasculo-nerveuse à base métaphysaire distale et de couronne tendineuse péri-osseuse, doivent faire rechercher un compromis entre la stabilité du montage et les dangers de la méthode.
    Notes: Summary Ilizarov's method of implanting an external circular fixator requires the placement of at least 8 transfixion pins. The neurovascular hazards and the need to leave the posterior and lateral compartments free motivated this study, based on serial radiographic actions after injection of the entire arterial system. Two reference pin-planes were determined, 1 posterolateral and 1 lateromedial. The sites of insertion of the pins rely on classical radiographs of the bones of the leg. The addition of beaded pins must be made on a realigned and stabilized limb. The imprecision of aim due to the bone structure and the shape of the pin leads to the definition of forbidden zones where any transfixion is dangerous. The concept of a neurovascular pyramid with its base at the distal metaphysis and of a periosseous tendinous circlet at that level implies a search for a compromise between the stability of the assembly and the dangers of the method.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02107899
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    Paper (German National Licenses)
    Fulltext
  • 3
    Electronic Resource
    Electronic Resource
    Imaging of vascularized fibular grafts in large bone reconstruction in skeletally immature patients (1997)
    Springer
    Skeletal radiology 26 (1997), S. 404-408 
    Details
    ISSN: 1432-2161
    Keywords: Key words Bone graft ; Vascularized bone graft ; Limb salvage surgery ; Bone tumor ; Children ; MRI
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract  Objective. To describe the imaging findings of vascularized fibular grafts (VFG) in large bone reconstruction in children and teenagers. Design and patients. Fifteen patients aged from 4 to 19 years underwent VFG for bone reconstruction for primary tumors involving bone in 13 cases and for chronic osteomyelitis in 2 cases. Lesions were located in the femur (6 cases), the tibia (6 cases), the humerus, the distal fibula and the ilium. Radiographic follow-up was performed in all patients, radionuclide studies in 12 patients and MRI in 8. Results. Plain films showed a lamellated periosteal reaction on the VFG within 3 weeks following the procedure in all cases. Fusion of VFG and host bone occurred during the first 3 months. Radionuclide uptake of the VFG was seen in all cases but one. MRI showed cortical thickening and conservation of the high signal intensity of fatty marrow on T1-weighted sequences, and periosteal enhancement on dynamic post-contrast studies in all but one of the patients. Conclusion. Radionuclide studies and MRI show the periosteal enhancement and assess the viability of the VFG satisfactorily. However, we feel that plain films may be sufficient to ascertain this viability.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s002560050255
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
    Fulltext
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