Symptoms of articular cartilage injury?

summary

Meniscus of knee joint is a kind of crescent fibrocartilage, which is filled in the joint space between femur and tibia. Each knee joint has two meniscus, medial meniscus and lateral meniscus. Their peripheral part is thick and adheres to the edge of tibial plateau, while the central part is thin. The upper part contacting the femoral condyle is slightly concave and the lower part contacting the tibial condyle is flat. There is no blood supply area in the meniscus of knee joint. The nutrition mainly comes from synovial fluid. Only the edge part connecting with the tibial margin can get blood supply from synovial membrane. Symptoms of articular cartilage injury? Let's talk about it

Symptoms of articular cartilage injury?

1. Tenderness: in the medial and lateral space of the knee joint, along the upper edge of the tibial condyle (that is, the edge of the meniscus), press point by point with the thumb from head to back, and there is fixed tenderness at the meniscus injury.

2. McMurray test (rotary compression test): when the patient lies on his back, the examiner holds the lower leg and ankle with one hand and holds the knee with the other hand to bend the hip and knee as much as possible, and then make the lower leg abduction, external rotation and abduction, internal rotation, or adduction, internal rotation, or adduction, external rotation, gradually straighten. Pain or sound is positive, according to the pain and sound to determine the site of injury.

3. Strong hyperextension or hyperflexion test: strong passive hyperextension or hyperflexion of knee joint, such as anterior meniscus injury, hyperextension can cause pain; If the posterior meniscus is injured, overflexion can cause pain.

matters needing attention

The prevention of meniscus injury focuses on the details of life. When you go down the stairs, you must concentrate on it, and then take the second step to avoid injury. In addition, in order to avoid knee injury, usually wear knee pads to prevent accidents. At the same time, meniscus injury belongs to athletes, so in addition to pay attention to the movement posture and the intensity of the movement, we should pay attention to sports protection, such as wearing sports protectors to prevent accidental injury in sports.