Many elderly people have pain in front of their knees when going up and down stairs and bending their knees, but they are fine when walking on flat ground. It is easy to ignore this symptom, but cartilage wear may have occurred.
The back of the knee is covered with a layer of cartilage, which bears pressure and impact, lubricates and protects the joints.
Squatting for a long time to choose vegetables, mopping the floor and other housework, excessive flexion of the knees in sitting position, playing ball, dancing and other sports for too long, trauma, osteoarthritis, weight and other factors may wear out the cartilage. Unable to maintain the normal position, it moves outward and tilts to one side, which loses its lubricating and protective effect, resulting in direct contact between bones and bones, friction with each other, and pain over time.
Two simple physical examination methods can help to determine the cartilage wear and tear:
First, let the old man lie flat on the bed, and the examiner should put one hand on the knee joint of the old man. Below, with the other hand on top, twist left and right (i.e. grind the patella) while pressing the knee firmly. If significant pain is induced, it indicates that the patellar cartilage has been worn.
Secondly, after the old man lies on his back, the examiner also presses the knee joint from above, and asks the old man to flex and extend the knee joint several times. At friction, a positive test result indicates the presence of patellar cartilage wear.
It should be noted that the early symptoms of cartilage wear are often hidden. As the wear progresses, the joints can make a snapping sound, especially when the surrounding environment is quiet, you can hear a “click” sound when flexing and extending the knee , It is more obvious when doing actions such as climbing stairs. It is recommended to seek medical treatment in time, take medicine under the guidance of a doctor, do appropriate rehabilitation exercises, and intervene to improve symptoms.