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Knee instability

Oct 21, 2022 Source: Cainiu Health
Dr. Chen Jian
Introduction
The knee refers to the knee joint. Knee joint instability may be caused by aging, overweight, prolonged inactivity, knee ligament injuries, patellar chondromalacia, etc., and can be improved according to specific conditions. It is recommended to seek timely medical attention at a hospital and receive treatment under the guidance of a doctor. Avoid prolonged standing, walking, climbing stairs, or other activities that increase stress on the knee joint.

Knee refers to the knee joint. Knee joint looseness may be caused by factors such as aging, overweight, long-term inactivity, knee ligament injury, and patellar chondromalacia. Improvements can be made according to specific conditions. It is recommended to seek timely medical attention and receive treatment under the guidance of a doctor.

1. Aging: With increasing age, the cartilage in the knee joint gradually wears down, the meniscus undergoes degeneration, and the ligaments and muscles surrounding the joint weaken in strength, leading to decreased stability of the knee joint and a sensation of looseness. Avoid prolonged standing, walking, climbing stairs, or other activities that increase stress on the knee joint, and keep the knee area warm.

2. Overweight: When body weight is excessive, the pressure borne by the knee joints increases accordingly. Long-term overload accelerates wear of the articular cartilage, causes structural changes around the knee joint, and subsequently leads to joint looseness. Control weight through a balanced diet and appropriate exercise—such as reducing intake of high-calorie, high-fat foods and increasing consumption of vegetables and fruits.

3. Long-term inactivity: Prolonged lack of physical activity can lead to atrophy and weakening of the muscles surrounding the knee joint, reducing their ability to stabilize the joint effectively, thus making looseness more likely. Regular exercise should be performed, especially muscle-strengthening exercises targeting the knee joint, such as quadriceps contractions and straight-leg raises, to enhance knee joint stability.

4. Knee ligament injury: Sudden sprains or external impacts during physical activity may cause damage to the knee ligaments, compromising joint stability and resulting in looseness. Under a doctor’s guidance, patients may use medications such as diclofenac sodium sustained-release tablets, ibuprofen capsules, or Yunnan Baiyao aerosol to relieve discomfort.

5. Patellar chondromalacia: Often caused by long-term overuse or trauma to the knee joint, this condition results in damage to the articular surface of the patella, with cartilage degeneration and softening, leading to symptoms such as knee pain and joint looseness. Under medical supervision, medications such as glucosamine capsules, chondroitin sulfate tablets, and sodium hyaluronate injections may be used to alleviate symptoms.

In daily life, it is advisable to ensure adequate rest, limit physical activity, and maintain muscle and ligament tension around the knee to support joint stability.

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