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  • 1
    Electronic Resource
    Electronic Resource
    Surgical treatment for myeloma of the bone (1997)
    Springer
    Archives of orthopaedic and trauma surgery 116 (1997), S. 463-469 
    Details
    ISSN: 1434-3916
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract In a retrospective study, 22 patients treated surgically for solitary or multiple myeloma between 1980 and 1993 were analysed. The main complaint was pain. A fracture was observed in 7 cases and motor-sensory impaired neurology due to spinal compression in 3. Apart from incisional biopsies, tumour resections, reductions (with and without stabilization by osteosynthesis) and endoprotheses were performed either at the extremities or on the spine. In addition, radiation and chemotherapy were included in the therapeutical concept. Early mobilization was achieved in all cases, and the 5-year survival rate (Kaplan-Meier method) was 48%. The results presented in this study demonstrate that a variety of surgical interventions can be of importance in the treatment of myeloma of the bone, ranging from biopsy or even curative resections in selected cases to endoprosthetic replacement. Thus, good functional results can be achieved and maintained over often long survival times.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00387578
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Moderate heat treatment of bone allografts (1992)
    Springer
    Archives of orthopaedic and trauma surgery 112 (1992), S. 18-22 
    Details
    ISSN: 1434-3916
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary The use of bone allografts is often essential in orthopedic surgery. Strict donor screening, including HIV testing 3 months postoperatively, is mandatory before a transplant may be used. Yet these measures do not definitely rule out the possibility of HIV transmission, as there is a window period before infection is revealed by blood testing. Accordingly, there is a need for virus inactivation methods that can be used on bone allografts. As radiation treatment and chemical methods have a number of disadvantages, we chose a moderate heat treatment of 65°C for a series of animal experiments. In 12 rabbit femoral condyles, moderate-heattreated bone allografts were implanted into 6-mm drill holes. Twelve normal allografts and 12 empty drill holes served as controls. Radiologic and histological evaluation up to 12 weeks postoperatively revealed slow spontaneous bone remodeling from the rim to the center of the empty cavities. Normal deep frozen allografts were quickly integrated after a short period of osteoclast reaction around the transplant, with occasional bone bridges between host and allgraft. The examination of heattreated allografts showed no differences to the controls, including morphologic aspects and the time course of osteointegration. Five zones of bone repair and osteointegration were distinguished. We conclude that thermal treatment of bone allografts has no adverse effects on osteointegration in the rabbit femoral condyle. Thus, it may contribute to improving safety in human bone transplantation.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00431038
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
    Fulltext
  • 3
    Electronic Resource
    Electronic Resource
    Surgical treatment for myeloma of the bone (1997)
    Springer
    Archives of orthopaedic and trauma surgery 116 (1997), S. 463-469 
    Details
    ISSN: 1434-3916
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract In a retrospective study, 22 patients treated surgically for solitary or multiple myeloma between 1980 and 1993 were analysed. The main complaint was pain. A fracture was observed in 7 cases and motor-sensory impaired neurology due to spinal compression in 3. Apart from incisional biopsies, tumour resections, reductions (with and without stabilization by osteosynthesis) and endoprotheses were performed either at the extremities or on the spine. In addition, radiation and chemotherapy were included in the therapeutical concept. Early mobilization was achieved in all cases, and the 5-year survival rate (Kaplan-Meier method) was 48%. The results presented in this study demonstrate that a variety of surgical interventions can be of importance in the treatment of myeloma of the bone, ranging from biopsy or even curative resections in selected cases to endoprosthetic replacement. Thus, good functional results can be achieved and maintained over often long survival times.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00387578
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 4
    Electronic Resource
    Electronic Resource
    Bone-cement removal with the excimer laser in revision arthroplasty (1992)
    Springer
    Archives of orthopaedic and trauma surgery 112 (1992), S. 15-17 
    Details
    ISSN: 1434-3916
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary The excimer laser was thought to be an appropriate tool for the removal of bone cement without damaging the bone. However, due to its low ablation rate, its clinical use in total hip revision arthroplasty proved to be impossible. This experimental study was designed to evaluate the maximal ablation rate by adjusting the laser's parameters. Energy density, frequency, pulse duration, radiation area, quantity of pulses, and environmental conditions were varied in the experimental setup. Even with the best set of parameters the excimer laser was about ten times slower than, e.g., the carbon dioxide laser. The removal of 10 g bone cement takes about 1 h. Thus, complete cement removal by means of the excimer laser alone is not possible. However, selective application of the excimer laser in combination with other techniques could be discussed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00431037
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    Paper (German National Licenses)
    Fulltext
  • 5
    Electronic Resource
    Electronic Resource
    Experimental stability of a new implant-free fixation technique in ACL replacement (1999)
    Springer
    Der Unfallchirurg 102 (1999), S. 791-796 
    Details
    ISSN: 1433-044X
    Keywords: Key words ACL-replacement • Graft fixation • Implant-free • Patellar ligament ; Schlüsselwörter VKB-Ersatz • Implantatfrei • Verankerung • Lig.-patellae-Transplantat
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Zusammenfassung Ziel der Arbeit ist die Bestimmung der Primärstabilität eines neuen Verfahrens zur implantatfreien Verankerung eines Lig.-patellae-Transplantats beim vorderen Kreuzband (VKB-)ersatz. An 40 Kniegelenkpräparaten wurden mittlere Patellarsehnendrittel mit einer neuen Knochenverblockungstechnik in einem zweistufigen Bohrkanal bzw. mit konventioneller Interferenzschraubentechnik femoral fixiert. In der Universalprüfmaschine wurde die durchschnittliche primäre Ausrißfestigkeit mit der Knochenverblockung mit 570 N bestimmt ( ± 100 N), diejenige der Interferenzschraubenfixation mit 402 N ( ± 79 N). Die Varianzanalyse der paarweise ermittelten Daten ergab bei einem Signifikanzniveau von p 〈 0,05 eine signifikant höhere Primärstabilität der knöchernen Verblockung im Vergleich zur Interferenzschraubenfixation. Die Primärstabilität der Knochenverblockung liegt damit auf oder über dem Niveau anderer Techniken. Wählt man das Lig.-patellae-Transplantat, so stellt die hier untersuchte implantatfreie Verblokkungstechnik mit dem zweistufigen Bohrkanal eine geeignete und praktikable Methode im Spektrum der Möglichkeiten zur stabilen femoralen Transplantatverankerung beim VKB-Ersatz dar.
    Notes: Summary The purpose of the study is to establish data on the stability of an ACL replacement. In 40 human cadaver knees, either a mid patellar ligament third with a trapezoid bone block on one side was fixed on the femoral side in a 2-diameter drill hole, or a conventional interference screw fixation was applied. Average primary stability amounted to 570 N (± 100 N) for the bone-blocking technique, and to 402 N ( ± 79 N) for the interference screw fixation. When statistically tested by variance analysis, stability was significantly higher for the bone blocking technique than with interference screw fixation (p 〈 0.05). Thus, when using a mid-patellar ligament third for ACL reconstruction, the new implant-free technique described here appears to be a practical and reliable method for femoral graft fixation.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s001130050482
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    Paper (German National Licenses)
    Fulltext
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