Meniscus slight injury symptoms?

summary

Meniscus injury is one of the most common knee injuries, which is more common in young adults than in women. The ratio of medial meniscus to lateral meniscus was 4-5 ∶ 1 in foreign reports, while it was 1 ∶ 2.5 in domestic reports.

Meniscus slight injury symptoms?

In the supine position of McMurray test patients, the examiners hold one hand against the medial edge of the joint, control the medial meniscus, and hold the foot with the other hand, so that the knee joint can be completely flexed, and the lower leg can rotate outward and turn inward, and then slowly extend the knee joint to hear or feel the bounce or bounce; Then hold the hand against the lateral edge of the joint, control the lateral meniscus, turn the leg inward and outward, slowly extend the knee joint, and hear or feel the bouncing or bouncing.

There are many different classification methods for meniscal tears. The most common classification methods are edge type, central type, longitudinal rupture (i.e. "bucket handle" rupture), anterior or posterior horn petal rupture and rare transverse rupture in the middle of meniscus.

Patient in prone position, knees bent 90 °， The front of the thigh is fixed on the examination table, and the foot and leg are lifted up to separate the joint and rotate. When rotating, the tension force is on the ligament. If the ligament is torn, there will be significant pain during the test. After that, when the knee joint is in the same position, the foot and leg press down and rotate the joint, slowly bend and extend, and the meniscus tears, the knee joint space can have obvious bounce and pain.

matters needing attention

Meniscus injury is more common in ball players, miners, porters and so on. When the knee joint is fully extended, the medial and lateral collateral ligaments are tense, the joint is stable, and the chance of meniscus injury is less. When the lower limbs are loaded, the feet are fixed, and the knee joint is in the semi flexion position, the meniscus moves backward. If the knee is suddenly extended by excessive internal rotation or external rotation, the meniscus will be squeezed before it has time to retreat, which can cause injury and tear.