That’s because the knee is the largest joint and also one of the most complicated in your body – enabling you to flex, bend and rotate your legs. The anterior cruciate ligament (ACL) and posterior cruciate ligament (PCL) are two of its most important components. So, when the ACL or PCL are torn, it can be not only painful but also temporarily debilitating.
Besides the fact that the ACL is located in the front of the knee and the PCL is located in the back, there are key differences between an ACL tear and a PCL tear that are worth noting.
Although knee injuries can occur as a result of any physical trauma, those who play high-intensity sports like football, basketball, or soccer are the most likely to sustain an ACL tear. The reason is that those sports require athletes to decelerate quickly and perform twisting maneuvers and the ACL ligament is designed to resist abnormal forward movement of the tibia (shinbone) relative to the femur (thighbone) and rotational forces. This explains why most ACL tears occur without contact.
The PCL, on the other hand, does the opposite, preventing the tibia from sliding backwards relative to the femur. PCL tears typically occur when there is a direct blow to the front of the tibia, or when the knee hyperextends from an awkward landing.
While both ACL and PCL tears can be painful initially, the real problem is the lingering instability of the knee joint. The severity of the tear is key. One can overcome the discomfort and instability of a partial tear with systematic and focused rehabilitation of the musculature surrounding the knee. But if the ligament is completely ruptured, that’s another story, possibly requiring reconstructive surgery to restore normal function.
The principal symptom of an ACL injury is rotational instability. You may be able to walk, even run, in a straight line after an ACL injury, but as soon as you attempt to turn, your knee collapses.
With a PCL injury, instability is also an issue, but to a lesser degree. In fact, some patients can recover by moderating their activity and by undergoing focused muscle conditioning instead of surgery.
Another therapeutic option is wearing a knee brace, depending on the extent of your injury, the prescribed course of treatment, the stage of the treatment, and your individual physical goals. This can help you maintain stability while your injury heals. However, a knee brace should only be worn for a specified period of time because it is important for your knee musculature to strengthen, which will not happen if you wear a brace all the time.
Your Orthopedic Surgeon in San Antonio
Whether you sustain an ACL or a PCL tear, the orthopedic specialists at the Center for Orthopaedic Surgery and Sports Medicine are dedicated to providing you with the best patient-centered care available. If you are in need of an orthopedic surgeon, or merely gathering information about the subject, our goal is to provide you with as much information as possible in a comfortable, supportive environment.
The Center for Orthopaedic Surgery and Sports Medicine is located next to Methodist Texsan Hospital in Balcones Heights. Contact us today by calling (210) 692-7400 to schedule an appointment with one of our physicians. We look forward to serving you.