**: Ouyang Yuanming, Department of Orthopedics, Shanghai Sixth Hospital Welcome to share this article, **Please keep the source!
The meniscus is the cartilage in the knee joint, which grows on the tibial articular surface, with medial and lateral meniscus, thin in the middle, thick at the edges, connected to the joint, the medial meniscus is C-shaped, and the lateral meniscus is O-shaped, and the padding is in the joint, which plays a role in cushioning the pressure of the joint and increasing the stability of the joint.
In daily life, do you know what is a meniscus injury of the knee joint? In general, meniscus injuries can be caused by a series of reasons such as dysplasia, trauma, arthritis, rupture of cruciate ligament in the knee, excessive bending of the knee joint.
Abnormal knee development, such as knee varus or knee valgus, abnormal alignment of the joint, high pressure on the meniscus, and easy injury. Meniscus dysplasia, such as a discoid meniscus. The center of the meniscus is under heavy load and is more susceptible to injury.
In the process of usual strenuous exercise, such as playing basketball or football, there is an emergency stop or sharp turn, when the knee joint is twisted, the meniscus may be subjected to rotational shear force in the joint, resulting in meniscus injury, joint pain, swelling, joint ** and joint spasm, people are prone to degenerative osteoarthritis at a certain age, with the age of meniscus degeneration and degeneration, chronic injury caused by repeated movement of the knee joint is related, commonly seen in the injury of the posterior horn of the medial meniscus. Degenerative changes in the knee joint occur with age, resulting in increased frittleness and elasticity of the meniscus, and possible meniscus rupture with minor activity.
If the anterior cruciate ligament of the knee is ruptured, the knee is often dislocated during exercise. Shear stress acts on the meniscus and can easily cause meniscus damage, especially in the posterior angle of the medial meniscus.
When the knee joint is in a semi-flexed position, the muscles and ligaments around the joint are relatively loose and the joint is unstable. Adduction, abduction, and rotational movements may occur, and meniscus injury is predisposed.
Typical symptoms of meniscal injury: pain, locking (i.e., jamming) of the knee, decreased range of motion for flexion and extension, and snapping of the knee.
How to avoid meniscus injuries in the knee joint:
1. Strengthen exercise.
Pay attention to strengthening the muscles around the knees, such as walking, swimming, cycling, etc.
2. Protect joints.
Wear protective gear when exercising, pay attention to the protection of important joints during strenuous exercise, and stop exercising in time when there is knee pain.
3. Warm up before exercise.
Do warm-up exercises before physical exercise, and do not exercise vigorously in a state of physical fatigue; Exercise moderately to prevent the occurrence of sharp knee torsion violence.
When there are symptoms such as knee pain, ringing of the knee joint during activity, limited movement of the knee joint, and swelling of the knee joint, it is necessary to be alert to knee meniscus injury and seek medical attention in time.
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 in Seoul, South Korea, Munich, Canada, and Hong Kong, and has mastered 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 loosening 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 preservation, hip preservation, 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 joint 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.