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  • 1
    Electronic Resource
    Electronic Resource
    Production of radioactive ion beams using the in-flight technique (2000)
    [S.l.] : American Institute of Physics (AIP)
    Review of Scientific Instruments 71 (2000), S. 380-387 
    Details
    ISSN: 1089-7623
    Source: AIP Digital Archive
    Topics: Physics , Electrical Engineering, Measurement and Control Technology
    Notes: Reactions with a heavy projectile incident on a light target can be used for the efficient in-flight production of secondary radioactive beams. An overview of this technique is given using data on 17F beams produced via the p(17O, 17F)n and d(16O, 17F)n reactions. With primary 16,17O beam currents of 100 pnA, intensities of up to 2×106 17F/s on target were achieved. Using this beam, the p(17F,α)14O reaction was measured. © 2000 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.1150211
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  • 2
    Electronic Resource
    Electronic Resource
    Quasi-Elastic Heavy-Ion Collisions (1991)
    Palo Alto, Calif. : Annual Reviews
    Annual Review of Nuclear and Particle Science 41 (1991), S. 429-468 
    Details
    ISSN: 0163-8998
    Source: Annual Reviews Electronic Back Volume Collection 1932-2001ff
    Topics: Physics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1146/annurev.ns.41.120191.002241
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  • 3
    Electronic Resource
    Electronic Resource
    Evaluation of target purity using various vacuum systems
    Amsterdam : Elsevier
    Nuclear Instruments and Methods in Physics Research Section A: 236 (1985), S. 658-661 
    Details
    ISSN: 0168-9002
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Physics
    Type of Medium: Electronic Resource
    URL: http://linkinghub.elsevier.com/retrieve/pii/0168-9002(85)90977-5
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  • 4
    Electronic Resource
    Electronic Resource
    Study of optimum Q-value in ^1^6O induced reactions on even Zr isotopes
    Amsterdam : Elsevier
    Physics Letters B 46 (1973), S. 353-355 
    Details
    ISSN: 0370-2693
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Physics
    Type of Medium: Electronic Resource
    URL: http://linkinghub.elsevier.com/retrieve/pii/0370-2693(73)90137-8
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  • 5
    Electronic Resource
    Electronic Resource
    Die Baker-Cyste – eine aktuelle chirurgische Standortbestimmung Übersicht und eigene Ergebnisse (1998)
    Springer
    Der Chirurg 69 (1998), S. 1224-1229 
    Details
    ISSN: 1433-0385
    Keywords: Key words: Primary and secundary form of Baker's cyst ; Extirpation. ; Schlüsselwörter: Primäre und sekundäre Baker-Cyste ; Exstirpation.
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Zusammenfassung. In der Unfallchirurgischen Universitätsklinik Köln wurden von 1988 bis 1997 19 Patienten an einer Baker-Cyste operiert. Die subjektiven und objektiven Ergebnisse wurden mit Hilfe eines Fragebogens sowie einer klinischen und sonographischen Nachuntersuchung erfaßt (Rücklauf: 95 %). Der präoperative Status wurde durch klinische Untersuchung, Sonographie und Anfertigung von Röntgenaufnahmen des Kniegelenks ermittelt. Wir differenzierten zwischen der angeborenen primären Cyste (39 %) und der sekundären Form, die immer mit einer Kniebinnenpathologie assoziiert ist (61 %). Bei allen sekundären Cysten wurde eine Arthroskopie durchgeführt. Als postoperative Komplikationen traten in einem Fall ein revisionspflichtiges Hämatom und in einem anderen Fall ein punktionspflichtiger Erguß auf. Das Operationsergebnis wurde von 61 % der Patienten mit „sehr gut“ und von 39 % mit „gut“ bewertet. Alle nachuntersuchten Kniegelenke waren passiv und aktiv frei beweglich. In einem Fall kam es zu einem Rezidiv. Nach unserer klinischen Erfahrung sollten primäre Baker-Cysten immer entfernt werden. Bei der sekundären Cyste muß neben der Exstirpation die Bedeutung der arthroskopischen Diagnostik und Therapie sowie der Sanierung der Grundkrankheit diskutiert werden.
    Notes: Summary. Baker's cysts were treated operatively in 19 patients in the Department of Traumatology of the University of Cologne from 1988 to 1997. The subjective and objective results were evaluated with a questionnaire and a clinical examination and sonography (follow-up: 95 %). All patients were examinated before surgery, sonography and X-ray of the knee were performed. We differentiated between the congenital primary cyst (39 %), and the secondary form, which was always associated with an intraarticular lesion (61 %). Arthroscopy was performed in all secondary forms of Baker's cyst. Postoperative complications were two reinterventions due to one hematoma and one effusion. Patient's evaluation of operation result was “excellent” in 61 % and “good” in 39 % of cases. All knee joints had a full range of motion. There was only one case of a recurrent cyst. The primary form of Baker's cyst has always to be extirpated, according to our clinical experience. The extirpation of the secondary Baker's cyst and the relevance of arthroscopy and treatment of the basic disease have to be discussed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s001040050560
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  • 6
    Electronic Resource
    Electronic Resource
    New developments in the application of biodegradable implants (1997)
    Springer
    Der Orthopäde 26 (1997), S. 489-497 
    Details
    ISSN: 1433-0431
    Keywords: Key words Biodegradation ; Polylactide ; Medial ankle fracture ; Distal radius fracture ; Radial head fracture ; Schlüsselwörter Biodegradation • Polylactid • Innenknöchelfraktur • Radiusfraktur • Radiusköpfchenfraktur
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Zusammenfassung Biodegradable Implantate bieten gegenüber metallischen Implantaten Vor- und Nachteile. Zahlreiche Anwendungsideen stellen sich dar. Darunter ist der Fixationsstift für gering belastete osteochondrale Fragmente am gründlichsten untersucht. Die primäre Festigkeit für Anwendungen am distalen Radius wurde vergleichbar zu herkömmlichen Implantaten wie der 1,8-mm-Kirschner-Draht gemessen. Eine prospektiv randomisierte Studie mit 183 Radiusköpfchenfrakturen zeigte gleichwertige Ergebnisse bei Metall und Polymer und insbesondre keine erhöhte Komplikationsrate für die Stifte aus Polylactid (Polypin®). Für diese Indikation und vergleichbare Lokalisationen ist eine Anwendung zu empfehlen. Die Gesamtbehandlungskosten können damit gesenkt werden, auch wenn das einzelne Implantat teurer ist. Hochfeste Polylactidschrauben haben in einer klinischen Langzeitstudie extrem lange Resorptionszeiten von 5–7 Jahren erbracht.
    Notes: Summary The application of biodegradable implants is combined with advantages and disadvan- tages. They offer a great deal of innovative ideas. Best evaluation has been done with pins for the fixation of low loaded osteochondral fractures. When using 2,7 mm Polypin® primary mechanical stabilility of distal radius fractures is comparable with the fixation by 1,8 mm K-wires. A prospective and randomised study with two years follow up, including 183 radial head fractures, showed no significant difference in results and complications in metal and polyactide implants. For this localisation and other comparable indications the implant can be recommended. Despite the more extensive degradable device overall costs can be reduced with the polymer implant. Orien- truded polyactide screws showed good clinical results, newetheless resorption was extremely late within 5 to 7 years.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/PL00003404
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  • 7
    Electronic Resource
    Electronic Resource
    Local foreign-body reactions to biodegradable implants A classification system (1997)
    Springer
    Der Unfallchirurg 100 (1997), S. 658-666 
    Details
    ISSN: 1433-044X
    Keywords: Key words Foreign-body reactions • Biocompatibility • Biodegradable implants • Classification • ; Osteolysis ; Schlüsselwörter Fremdkörperreaktionen • Biokompatibilität • Biodegradierbare Implantate • Klassifikation • Osteolysen
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Zusammenfassung Biodegradierbare Implantate finden zunehmend Einsatz in Unfallchirurgie und Orthopädie. Die Anzahl der erhältlichen Implantate und der dabei eingesetzten verschiedenen Polymere nimmt ständig zu, wobei die Biokompatibilität problematisch bleibt. Diese wird von einer Vielzahl verschiedener Faktoren beeinflußt. Lokale Fremdkörperreaktionen können bei der Verwendung biodegradierbarer Implantate auftreten und müssen klinisch dokumentiert werden. Um eine Vergleichsmöglichkeit verschiedener Implantate zu ermöglichen, ist ein standardisiertes Instrument zur Klassifizierung solcher Fremdkörperreaktionen erforderlich. Basierend auf unseren klinischen und experimentellen Erfahrungen wurde ein Klassifikationssystem entwickelt, das eine systematische Dokumentation gewährleistet. Hierzu werden Fremdkörperreaktionen in Osteolysen (O-0 bis O-4), extraartikuläre (EA-0 bis EA-4) und intraartikuläre (IA-0 bis IA-4) Weichteilreaktionen unterteilt.
    Notes: Summary Biodegradable implants are increasingly used in orthopedic and trauma surgery. Many different implants consisting of different biodegradable polymers are currently available. Different factors contribute to the biocompatibility of these implants, and local foreign-body reactions remain a matter of concern. Therefore, it is mandatory to document and compare the tissue reactions caused by various biodegradable implants in experimental or clinical studies. We have developed a standardized system of classification based on our previous experimental and clinical observations. Foreign-body reactions are differentiated into osteolyses (O-0 to O-4), extra-articular (EA-0 to EA-4) and intra-articular (IA-0 to IA-4) soft-tissue reactions.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s001130050172
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  • 8
    Electronic Resource
    Electronic Resource
    Röntgenbildpräsentation im Patientenzimmer Einfache Vorrichtungen zur Demonstration und Lagerung von Röntgenbildern (1996)
    Springer
    Der Unfallchirurg 99 (1996), S. 989-991 
    Details
    ISSN: 1433-044X
    Keywords: Schlüsselwörter Röntgenbilderpräsentation ; Aufhängung ; Lagerung ; Key words Presentation of X-ray pictures ; Suspension ; Storage
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Immediate presentation of the more significant X-ray pictures facilitates planning and supervision of therapy in trauma surgery and orthopedics. If a wire rope is stretched in front of the window X-ray pictures can be clipped onto it, which avoids time-consuming searches. Suspended filing boxes placed in each sickroom make appropriate storage of each patient's X-ray pictures possible. The expenditure for all this amounted to 100 DM for each two-bedded room. Wire ropes and boxes were technically easy to install with a minimum investment of time. The presentation of X-ray pictures considerably increased the patients' understanding of their illness. It was also very rare for X-ray pictures to get mixed up once this system had been instituted.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s001130050085
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  • 9
    Electronic Resource
    Electronic Resource
    The lateral calcaneal artery (1999)
    Springer
    Surgical and radiologic anatomy 20 (1999), S. 419-423 
    Details
    ISSN: 1279-8517
    Keywords: Lateral calcaneal artery ; Calcaneal fracture ; Flap ; Avascular necrosis
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract An anatomic study of the lateral extraosseous and intraosseous arterial supply of the calcaneus and the lateral soft tissue was carried out on 10 fresh lower adult cadaver legs using different anatomic and radiologic procedures (plastination, modified Spalteholz clearing technique, digital subtraction and rotational angiography and computed tomographic angiography). Consistent patterns of extraosseous and intraosseous lateral calcaneal vascular anatomy were demonstrated. The lateral calcaneal artery is a branch of the anterior tibial artery which crosses over the calcaneal tuberosity and forms a large lateral arch with the lateral tarsal artery which is a branch of the dorsalis pedis artery. The intraosseous circulation is supplied laterally by the lateral calcanear artery, medially via the short branches of the lateral plantar artery. Comparing magnet resonance images after fresh calcaneal fractures the lateral calcanear artery may be interrupted by the impacted lateral bulge, by the conventional lateral surgical approach, or by applying a lateral osteosynthesis plate. This may cause avascular bone necrosis. Furthermore the lateral calcanear artery can clinically serve as a vascular pedicle for a local rotational skin flap to cover soft tissue defects of the heel.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s00276-998-0419-1
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  • 10
    Electronic Resource
    Electronic Resource
    The lateral calcaneal artery (1998)
    Springer
    Surgical and radiologic anatomy 20 (1998), S. 419-423 
    Details
    ISSN: 1279-8517
    Keywords: Lateral calcaneal artery ; Calcaneal fracture ; Flap ; Avascular necrosis
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Résumé L'étude anatomique de la vascularisaiton artérielle extra et intraosseuse du calcanéus et des parties molles a été faite sur 10 jambes fraîches de cadavres d'adultes. Différentes techniques anatomiques et radiologiques ont été utilisées : plastination, diaphanisation (technique de Spaltholtz modifiée), angiographie numérisée par soustraction, angiographie rotationnelle et angiographie par tomographie computérisée. Les aspects habituels de l'anatomie vasculaire de la région latérale du calcanéus ont été décrits : l'ACL est un rameau de l'artère tibiale postérieure ; elle surcroise la tubérosité calcanéenne et constitue une large arcade latérale avec l'artère tarsienne latérale, branche de l'artère dorsale du pied. La moitié de la circulation intraosseuse passe par l'ACL, médialement par des rameaux courts de l'artère plantaire latérale. Lorsqu'on examine les images obtenues en IRM lors de fractures récentes du calcanéus, on constate que l'ACL risque d'être lésée par l'élargissement latéral du calcanéus écrasé. Elle peut l'être aussi lors de l'abord latéral classique de l'os ou lors de l'application d'une plaque d'ostéosynthèse. Le risque en est la nécrose ischémique de l'os. Enfin, l'ACL peut constituer un pédicule vasculaire intéressant pour un lambeau local de rotation, lors de la couverture des pertes de substances cutanées du talon.
    Notes: Summary An anatomic study of the lateral extraosseous and intraosseous arterial supply of the calcaneus and the lateral soft tissue was carried out on 10 fresh lower adult cadaver legs using different anatomic and radiologic procedures (plastination, modified Spalteholz clearing technique, digital subtraction and rotational angiography and computed tomographic angiography). Consistent patterns of extraosseous and intraosseous lateral calcaneal vascular anatomy were demonstrated. The lateral calcaneal artery is a branch of the anterior tibial artery which crosses over the calcaneal tuberosity and forms a large lateral arch with the lateral tarsal artery which is a branch of the dorsalis pedis artery. The intraosseous circulation is supplied laterally by the lateral calcanear artery, medially via the short branches of the lateral plantar artery. Comparing magnet resonance images after fresh calcaneal fractures the lateral calcanear artery may be interrupted by the impacted lateral bulge, by the conventional lateral surgical approach, or by applying a lateral osteosynthesis plate. This may cause avascular bone necrosis. Furthermore the lateral calcanear artery can clinically serve as a vascular pedicle for a local rotational skin flap to cover soft tissue defects of the heel.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01653134
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