Abstract
1. Strain or rupture of the anterior marginal attachments of the meniscus was observed in approximately 10 per cent of a group of patients operated upon for internal derangement.
2. In about half of these a tear of the body of the meniscus was found and it is probable that this tear may have been the cause of the symptoms. In the remainder no injury to the body of the meniscus was found.
3. Recognition may be difficult and delay in diagnosis may be the cause of degenerative joint changes.
4. The condition should be looked for at operation when the meniscus appears to be intact or when the only lesion appears to be an area of chondromalacia on the weight-bearing surface of the femoral condyle.
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