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Der Begriff Osteonekrose des Kniegelenks umfasst zwei verschiedene Entitäten, die sich in ihrer Ätiologie voneinander unterscheiden. Die primäre, idiopathische Form der Osteonekrose wurde erstmals im Jahr 1968 von Ahlbäck beschrieben. Neuere histologische Untersuchungen zeigen, dass es sich hierbei am ehesten um eine Insuffizienzfraktur des subchondralen Knochens handelt, die sich nachfolgend durch...
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