**: Ouyang Yuanming, Department of Orthopedics, Shanghai Sixth Hospital Welcome to share this article, **Please keep the source!
If there is no pain after the knee rings, then it is a physiological joint snap. There is also a pathological snap, which may be caused by pathological causes such as meniscus injury, osteoarthritis, bursitis, etc.
Physiological snapping: During normal joint movement, each joint surface will rub against each other and move, so there is a sound. Just like in real life, there will be a sound when two objects collide, which will not cause pain, soreness or limited movement of the joint, mainly the friction and movement between the articular cartilage and the synovium, and some people are born with ligament relaxation, which will also make a sound.
Older people, osteoporosis, calcium deficiency, knees and other joints will also ring frequently, but it will not hurt. But don't think that this is normal and go with the flow, if it doesn't improve, then it will increase the chance of fracture later. Such people can supplement more calcium, such as beans and seafood, bask in the sun properly, promote calcium absorption, and do more physical exercise, and the joint ringing will improve soon.
Pathologic snapping:
1. Some patients will be affected by genetic factors, resulting in deformity of the patella or femur. This results in an abnormal trajectory of the patella. Later, during the active joint, the patient will experience abnormal noises and pain due to the abnormal movement of the patella.
2.Meniscus injury: The knee is caused by knee semi-flexion, adduction or abduction, gravitational extrusion and rotational force acting on the knee joint, resulting in the rupture of the meniscus, resulting in a ringing sound in the knee, which is mainly manifested as severe knee pain, inability to straighten, swelling and other symptoms.
3.Osteoarthritis: Knee noise may be caused by osteoarthritis, which is usually related to genetics, weight-bearing, metabolic inflammatory factors, mainly manifested as joint friction pain and crunching sounds, and occasionally joint locking.
4.Bursitis: If there is injury, long-term friction and compression, the bursa will cause aseptic inflammation, resulting in a ringing knee sound.
In addition, iliotibial band tension, intra-articular loose bodies, etc. will also lead to knee sounds, if accompanied by obvious symptoms, it is recommended to go to the hospital in time, improve the relevant examinations, and follow the doctor's instructions to take targeted ** after clarifying**, so as not to delay the disease.
Important note: popular science content can not be used as the basis for disease**, if you feel unwell, please go to a regular hospital for treatment, according to personal conditions scientific**.
Ouyang YuanmingChief Physician of the Department of Orthopedics and Joint Surgery, Shanghai Sixth People's Hospital, MDBoGraduate Supervisor
Shanghai Jiao Tong UniversityGraduated from medical school and engaged in clinical workMore than 20 yearsThe main focus is on joint surgery。He has studied Xi in Seoul, South Korea, Munich, Germany, Canada and Hong Kong, mastering advanced joint replacement surgery and arthroscopic techniques. The average annual surgical volume is about 1,000
Good at:
1. Artificial knee joint, hip replacement and prosthetic infection loose revision surgery (osteoarthritis, rheumatoid, gouty arthritis, traumatic arthritis, ankylosing spondylitis, bone hyperplasia, bone spurs, joint wear, knee joint inward and valgus deformity, femoral head necrosis, congenital hip dysplasia);
2. Knee protection, hip protection, hip arthroscopic surgery;
3. Arthroscopic minimally invasive ** knee effusion, synovitis, cartilage injury, meniscus injury, meniscus tear, frozen shoulder, rotator cuff injury;
4. Total shoulder and total elbow replacement;
5. Severe elbow, knee and hip joint heterotopic ossification joint stiffness and release surgery.
Position:
He is a member of the Hand Surgery Branch of the Chinese Medical Association, a member and secretary of the Hand Surgery Society of the Shanghai Branch of the Chinese Medical Association, a member of the Shanghai Sports Medicine Joint Minimally Invasive Group, a member of the Trauma Professional Youth Committee of the Shanghai Association of Integrative Traditional and Western Medicine, a review expert of the Shanghai Science and Technology Expert Database, a member of the Asia-Pacific Association of Knee-Arthroscopy-Sports Medicine (APKASS), an editorial board member of the international journal Frontiers in Neuroscience, and an American journal "Orthopedics" Lead reviewer.