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[Medical insurance focus on sports disabilities: the knee joint].

This retrospective epidemiological study analyzes the distribution of sports invalidism in Berlin and Brandenburg in a period of four years, based on the data material of the German Lloyd sports insurance company and medical expert opinions. Over 600 cases occurred in a period of four years in more than 40 types of sports disciplines; most of them were registered in soccer (57%), followed by handball (13%), volleyball (4%) and judo (4%). Most of disablements were found during competition (63%). Most of incapacities were concerned with the knee joint (48%).