Verletzung des vorderen Kreuzbandes (Kreuzbandriss)

http://www.orthopaedieratgeber.de/home/ http://www.leopoldina-krankenhaus.com... A typical sports injury in the knee joint is a rupture of the anterior cruciate ligament (cruciate ligament tear). In the knee joint, the thigh (femur) and lower leg (tibia) are connected by four ligaments: the anterior and posterior cruciate ligaments, which run centrally in the knee, and the two collateral ligaments, which run inside and outside the knee joint. The cruciate ligaments stabilize the knee joint under any load. Without the function of the cruciate ligaments, the muscles surrounding the knee joint are insufficient to prevent hypermobility of the knee joint. Certain sports pose an increased risk of injury to the anterior cruciate ligament. These include soccer, alpine skiing, and all extreme sports. In these sports, the cruciate ligament is exposed to extreme stress during sudden acceleration or rotation of the body. The typical injury progression is the rotation of the lower leg out of alignment with the leg (sprain injury or knee sprain). The signs of a cruciate ligament rupture are often a clearly audible pop at the moment of the accident caused by the cruciate ligament tearing. The knee joint subsequently swells. Bruising is often accompanied by swelling. Other symptoms include a feeling of instability and pain in the knee. The knee also cannot be fully extended. The twisting that caused the cruciate ligament rupture often also injures other ligaments or the meniscus. An experienced orthopedist can quickly make a diagnosis. A subsequent magnetic resonance imaging (MRI) scan provides definitive clarity. The problem with a cruciate ligament injury is the instability in the knee joint and the risk of increasing wear and tear in the joint. There is a significant risk of osteoarthritis. Therefore, the cruciate ligament must be reconstructed. This requires surgery, as conservative treatments, especially in active individuals, cannot prevent the risk of joint wear and tear (osteoarthritis). In addition to the option of suturing the cruciate ligament (cruciate ligament refixation), the so-called cruciate ligament replacement (CLR) has become particularly established. In this treatment, a tendon is removed from the body, for example, from the back of the knee, and surgically transplanted into the bone. Thanks to special fixation mechanisms, the graft can theoretically bear full weight immediately. However, caution should be exercised. After a healing period of three to four months, the ligament undergoes remodeling. There is an increased risk of re-rupture. During this period, contact sports should be avoided.