Ligament of the Knee Cruciate Posterior

The posterior cruciate ligament of the knee (l. cruciatus genu posterior) is one of the most important ligaments in the human body. It is located on the back of the knee and plays an important role in maintaining the stability of the knee joint.

The posterior cruciate ligament of the knee consists of two parts: external and internal. The outer part is located on the outside of the knee, and the inner part is located on the inside. Both parts are interconnected by fibers and form a cross shape.

The main function of the cruciate posterior knee ligament is to provide stability to the knee joint during movement. When a person walks, runs, or jumps, the posterior cruciate ligament helps keep the leg in the correct position and prevents the knee joint from shifting. In addition, it is also involved in supporting body weight and providing stability when walking.

Knee injuries such as a torn anterior cruciate ligament (ACL) can also damage the posterior cruciate ligament. This can lead to knee instability and pain when walking or running. In such cases, surgery is required to restore the integrity of the cruciate posterior knee ligament and restore stability to the knee joint.



As practice and medical statistics show, knee injuries are one of the most common problems faced by people leading an active lifestyle. Unfortunately, it often happens that injuries are not given due importance or treatment is not started on time. This leads to the fact that complete rehabilitation after an injury takes quite a lot of time and effort. In this article we will look at such popular injuries as the cruciate ligament of the knee and the posterior cruciate ligament of the knee. We will also talk about ways to diagnose and treat them.

Knee Ligament The cruciate posterior ligament is a part of the musculo-ligamentous structure of the human knee that provides stability and protection to this area of ​​the joint. The sacral ligament is located at the back of the knee and consists of two parts: lateral and medial. The lateral ligament connects the outer layers of the femur to the inner layer of the tibia, and the medial ligament connects the back of the tibia and the front of the femur. The posterior cruciate ligament is primarily related to the inner block of the knee joint, providing stability during knee extension. Due to its correct functioning, the correct positioning of the knee block, connection and retention of the ends of the femorotibial ligaments are ensured. If this ligament is damaged, pain occurs and movement in the knee is limited during flexion, and forced extension occurs. It is also possible that a blockade of the joint may occur. Due to damage to this ligament, increased stress on the articular surface is possible, which negatively affects the functioning of the knee joint and cartilage. One of the characteristic manifestations of damage to the cruciate ligament is a change in the inner surface of the joints (with severe damage), as well as unevenness of the surface of the articular cartilage in the diseased knee joint. In some circumstances, to make a correct diagnosis, a detailed x-ray examination is necessary, when during the examination characteristic depressions on the intra-articular surface will be visible. However, to obtain a more accurate diagnosis, a CT scan or MRI of the knee joint should be performed. Injury to the knee ligament often occurs due to improper distribution of loads when walking, running, or jumping. Simply put, a rupture of the anterior cruciate ligament can occur when squatting with a strong or sharp turn of the knee to the side, usually the medial edge of the ligament is torn. Rupture of the posterior cruciate ligament most often occurs from pronation of the limb or its sharp inward rotation, i.e. there is a complete rotation of the hip in the opposite direction. A cruciate ligament rupture can be classified by severity. The doctor conducts an external examination and makes a conclusion based on the results of an analysis of the medical record and available studies, such as CT or MRI. Complications of a cruciate ligament injury can lead to problems with the functioning of cartilage tissue (menisci, lumen), impaired stability of the knee joint surfaces, instability of the lower leg, etc. The damaged ligament of the knee joint rarely heals on its own, so in 70% of cases surgical intervention is required with resection. Surgical intervention is also carried out for such indications as: persistence of a tear for more than a month, herniation of the knee meniscus more than 2 mm, damage to articular ligaments with pain, no signs of symptoms