Menisci fill in the space between two convex joints, increase the surface under strain, and take relief of the joint. They stabilize it and help better nourishment of the joint cartilage. Meniscus injury most often happens in rotation with slight flexion. External rotation of the lower leg injures the medial meniscus, while internal rotation injures the lateral one. It is not uncommon that the same mechanism brings to the injury of the knee ligaments and of the cartilage.
The rupture can be transversal, horizonal, longitudinal, diagonal and a combination thereof. In longitudinal tears, the free part of the meniscus can nest between the joints and cause knee blocking, there is no possibility to straighten the knee. Besides, meniscus tear symptoms are characterized by pain in the joint cavity, popping of the knee, slight swelling of the knee joint. Diagnosis of meniscus tear is possible through anamnesis which is often very typical, and through clinical examination. The examination consists of a line of specific tests, generally not painful. Most often, meniscus tear diagnosis is possible right then.
Examinations can be supplemented by magnetic resonance imaging, but this is recommended only after the orthopaedist traumatologist has completed his examination. Radiological imaging of the knee is also recommended. Treatment consists of arthroscopic meniscectomy. Arthroscope is introduced through a small incision on one side and a specially designed instrument is inserted on the other to remove the injured part of the meniscus.
If at all possible, the injured part of the meniscus is sutured to preserve its integrity, which is favorable for the knee joint functions, even though rehabilitation is somewhat longer.trčanja s promjenom smjera nisu dopuštene i do tri mjeseca nakon operacije.