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October 28, 1911


Author Affiliations


JAMA. 1911;LVII(18):1452. doi:10.1001/jama.1911.04260100278016

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Slip-meniscus, or dislocation of the internal semilunar cartilage of the knee-joint, I have found to be of very frequent occurrence, and more often in females than in males. Standing on one foot solidly, as when on a step-ladder or chair, and making a quick move or inward rotation is the most common cause of loosening the cartilage. The internal condyle of the femur pressing against the cartilage, by this quick motion, displaces it inward, moving it on the upper surface of the tibia and thereby rupturing the coronary ligaments. It rarely comes from a fall or from slipping. The quick rotation would not displace the cartilage if the foot were not placed solidly on the ground and the weight of the body all on that leg. The symptoms arc pain in the joint, quite severe, made more so by the complete extension of the leg, comparative ease when the leg is

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