Zusammenfassung
Pseudarthrosen stellen ein sehr heterogenes, seltenes und mitunter sehr komplexes Krankheitsbild dar. Die Ursachen, die Lokalisation und der Grad der Ausprägung zeigen eine hohe Varianz, was die Etablierung von einheitlichen Behandlungsstandards erschwert. Trotzdem unterliegt der Prozess der Knochenheilung einigen wesentlichen Faktoren, die für einen Behandlungserfolg gewährleistet sein sollten. Diese Faktoren wurden im Laufe der Jahre immer besser erforscht und fanden Berücksichtigung in dem Diamond-Konzept, das 2007 erstmals von Giannoudis et al. publiziert wurde. Damit steht dem Behandler nun ein Konzept zur Verfügung, das die Heterogenität des Krankheitsbildes nicht außer Acht lässt und eine Entscheidungshilfe für ein Therapieregime im individuellen Fall bietet, um die besten biologischen und mechanischen Bedingungen zu gewährleisten. Das Diamond-Konzept findet mittlerweile eine breite Verwendung, und zahlreiche Studien haben bereits eine erfolgreiche Anwendung demonstriert. Es versteht sich eher als ein Rahmenwerk, bei dem die unterschiedlichen verfügbaren Therapieoptionen (Knochenersatzstoffe, mesenchymale Stammzellen, Osteosyntheseverfahren etc.) in die einzelnen Faktoren einfließen, und bietet dem Behandler damit einen gewissen Freiraum in der Wahl seiner Werkzeuge. Zudem ist es kein starres Korsett und in seinen Faktoren dem medizinisch-wissenschaftlichen Fortschritt unterworfen, sodass es spannend bleibt, welche neuen Entwicklungen in Zukunft einfließen werden.
Abstract
Nonunions represent a very heterogeneous, rare and sometimes very complex disease picture. The causes, localization and degree of expression show a very high variability, which makes it difficult to establish uniform treatment standards. Nevertheless, the process of bone healing is subject to some essential factors, which should be ensured for a successful treatment. Over the years these factors have been better researched and were taken into consideration for the diamond concept, which was first published by Giannoudis et al. in 2007. This provides the physician with a concept that does not neglect the heterogeneity of the disease picture and is an aid to decision making for the treatment regimen in individual cases in order to guarantee the best biological and mechanical conditions. The diamond concept is nowadays widely used and many studies have already demonstrated a successful application. It must be understood as a framework, in which the various treatment options available (bone substitute materials, mesenchymal stem cells, osteosynthesis procedures etc.) are incorporated into the individual factors and therefore provides the physician with a certain freedom of choice in the selection of tools. Additionally, it is not a rigid corset and subject to medical scientific progress in its factors, so that it is exciting to see which new developments will be incorporated in the future.
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Miska, M., Schmidmaier, G. Diamond-Konzept zur Behandlung von Pseudarthrosen und Knochendefekten. Unfallchirurg 123, 679–686 (2020). https://doi.org/10.1007/s00113-020-00843-1
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DOI: https://doi.org/10.1007/s00113-020-00843-1
Schlüsselwörter
- Frakturheilung
- Biomechanik der Knochenheilung
- Wachstumsfaktoren
- Knochenersatzmaterialien
- Vaskularisation