In a suburban area of Copenhagen with approximately 620,000 inhabitants, all the openly operated on meniscal lesions of the knee joint between 1982 and 1984 inclusive were reviewed. The mean annual incidence of meniscal lesions per 10,000 inhabitants was 9.0 in males and 4.2 in females. The highest incidences were seen in the 3rd, 4th, and 5th decades of life. A higher frequency of trauma related to onset of symptoms was found among males (77 percent) than among females (64 percent). The bucket-handle lesion was the most frequent type of meniscal lesion in males (35 percent), whereas peripheral detachment was the most frequent in females (41 percent). A variable frequency of trauma inducing the lesions in males and females did not explain differences in type of meniscal lesion. Nineteen percent of our 1,215 patients had a partial meniscectomy, whereas 0.7 percent had meniscal repair.
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