
The pain from an ACL tear usually will be more severe than that of a PCL tear. There also may be significant (or total) loss of range of motion of the knee. Swelling from an ACL tear tends to develop slowly, over the course of 24 hours. Most PCL injuries are partial tears.
How is a PCL injury different from an ACL injury?
The symptoms of ACL injuries and PCL injuries are essentially the same: pain, swelling, and knee instability. Where they tend to differ is the extent of the injury and the severity of symptoms. Because it's smaller and weaker than the PCL, the ACL is more likely to sustain a complete tear.
How to tell if you have an ACL tear?
- Lay the subject on his/her back with his/her knee bent to 90 degrees.
- Sit lightly on the person’s foot and wrap your fingers around to the back of his/her knee.
- Pull the tibia forward towards you to assess how much motion there is.
- If the ACL is intact, there should be very little motion with a “firm” end feel.
Is ACL tear worse than meniscal tear?
Increased chance of developing osteoarthritis. In knee injuries, the phrase “ACL tear” is probably the most dreaded words that you could ever hear, while having a torn meniscus does not seem to be as terrible. But which injury is worse than the other? As in all things, it depends on the situation.
What are the signs and symptoms of an ACL tear?
- Initial sharp pain. ...
- Swelling after the injury. ...
- Deep, aching pain in the knee. ...
- A feeling the knee is “giving out.” Instability may be especially noticeable during activities that strain the knee joint, such as walking downstairs and pivoting on one leg.

Is ACL or PCL stronger?
Even though your PCL is stronger and larger than your anterior cruciate ligament (ACL), it can still be injured. People with a PCL injury may have pain, swelling and other symptoms.
Why does ACL tear more than PCL?
Why Is the ACL More Likely to Be Injured than the PCL? Of the four ligaments that comprise the knee, the ACL is the one that is most frequently torn or stretched. When the feet remain planted, but there's a sudden rotation or twisting of the knee, the ACL is often stretched or torn to the point of injury.
Which is worse PCL MCL or ACL?
While not always the case, an ACL tear is in most cases going to be the more severe injury. It is considered worse than tearing the MCL because ACL tears are in general more complex to treat and require a longer recovery time after surgery.
Is a PCL tear serious?
An injury to the PCL can cause mild to severe damage.
How long is recovery from PCL surgery?
Typically patients can return to driving: 6-8 weeks post-op. Typically begin sleeping without brace: 8 weeks post-op. Full weight-bearing without assistive devices: 8 weeks post-op (with surgeon's clearance based on structural integrity of repair).
Can a fully torn PCL heal on its own?
PCL injuries are common in football, soccer, baseball, and skiing. PCL injuries are usually partial ligament tears, and typically heal on their own, without causing stability issues, so long as the knee is protected during healing, and there are no other knee joint injuries.
What is the most painful ligament to tear?
Quadruple Knee-Ligament Injury It also seems that the more severe the damage to the knee, or the more ligaments destroyed in the injury, the more pain the player seems to be in. For this reason, the quadruple ligament injury must be one of the most painful football injuries imaginable.
What is the most serious knee injury?
ACL injuries are one of the most common types of knee injuries and account for about 40 percent of all sports-related injuries. An ACL injury can range from a small tear in the ligament to a severe injury –when the ligament completely tears or becomes separated from the bone itself.
Can a grade 3 PCL tear heal without surgery?
Generally, surgery is only recommended for those who have grade III PCL tears, multiple ligament injuries (such as a PCL and ACL tear), and knee instability that has not responded to nonsurgical treatment.
Can you bend your knee with a torn PCL?
Swelling may cause the knee to become stiff. A person may have trouble bending the knee, resulting in a limp or difficulty going up or down stairs.
Do you need surgery for a torn PCL?
Complete PCL tears often require surgical treatment to regain knee stability. When the PCL pulls off a small piece of bone from the back of the lower leg (tibial avulsion), the PCL may be surgically repaired.
Can I run with a torn PCL?
You should return in moderation, and back off if you feel any pain. A typical surgery patient may be able to ride a bike at three months, start running at five to seven months, and return to competitive sports after eight to 12 months. Full recovery may take up to two years.
Why is anterior cruciate ligament more prone to injury?
ACL injuries often happen during sports and fitness activities that can put stress on the knee: Suddenly slowing down and changing direction (cutting) Pivoting with your foot firmly planted. Landing awkwardly from a jump.
Why is ACL most common injury?
The ACL can be injured or torn in a number of different ways. The most common mechanism is that of a sudden pivoting or cutting maneuver during sporting activity, which is commonly seen in football, basketball and soccer. The ligament can also tear due to work injuries or automobile accidents.
Can you tear your ACL and PCL at the same time?
A rotatory knee dislocation occurs around one of the collateral ligaments (LCL) leading to a combined ACL and PCL injury and a tear of the remaining collateral ligament.
Does PCL grow back?
Recovery. Expected recovery usually occurs in about three months at which time swelling may be resolved and strength recovered. A full return to active sports is usually possible. If PCL reconstruction is needed, full recovery may take 9-12 months.
What is the difference between the ACL and PCL?
Together they provide stability for the knee joint, preventing it from moving from side-to-side while at the same time allowing it to flex and extend. The ACL prevents the tibia from sliding forward along the femur, while the PCL prevents the tibia and femur from sliding towards each other.
How to tell if you have a PCL tear?
3 . A tell-tale sign of a PCL tear is a backward, sagging position of the knee as it is bent. The kneecap may be able to slide even further back when the knee is bent more than 90 degrees. 4 .
Why does my ACL pop?
Where they tend to differ is the extent of the injury and the severity of symptoms. Because it's smaller and weaker than the PCL , the ACL is more likely to sustain a complete tear. When this occurs, there may be an audible "pop" at the moment the ligament ruptures.
What are the two ligaments that prevent knees from bending sideways?
The other two ligaments of the knee, the medial collateral ligament (MCL) and lateral collateral ligament (LCL). These run along the outside of the knee and prevent the knee from bending sideways. When to See a Doctor About Knee Pain.
How long does it take for a knee to swell from an ACL tear?
There also may be significant (or total) loss of range of motion of the knee. Swelling from an ACL tear tends to develop slowly, over the course of 24 hours. Most PCL injuries are partial tears. Swelling is likely to happen almost immediately, but there will be relatively less pain, if any.
Which ligaments allow the knee to flex and extend without sliding back and forth?
The ACL and PCL are two major ligaments that crisscross within the joint, allowing the knee to flex and extend without sliding back and forth. The ACL prevents the tibia from sliding forward along the femur, while the PCL prevents the tibia and femur from sliding backwards.
How to diagnose a torn ACL?
To diagnose a torn ACL or PCL, a doctor will start with a physical exam, looking for certain signs and symptoms of injury . With an ACL tear, the knee will be tender to the touch along the joint line and it will be difficult, if not impossible, to flex the knee.
What is the difference between a PCL tear and an ACL tear?
The Difference Between an ACL Tear and a PCL Tear. The knees are held together and stabilized by two major ligaments: the anterior cruciate ligament (ACL) and the posterior cruciate ligament (PCL). They cross each other forming an “X” in the middle of the knee – the ACL is in front, and the PCL is in back. They each connect the tibia (shinbone) ...
Why Is the ACL More Likely to Be Injured than the PCL?
When the feet remain planted, but there’s a sudden rotation or twisting of the knee, the ACL is often stretched or torn to the point of injury.
How Are ACL Injuries Treated?
If the ACL is completely torn, the patient may need to undergo an arthroscopic surgery and ACL reconstruction.
What are the two ligaments that connect the knees?
The knees are held together and stabilized by two major ligaments: the anterior cruciate ligament (ACL) and the posterior cruciate ligament (PCL). They cross each other forming an “X” in the middle of the knee – the ACL is in front, and the PCL is in back. They each connect the tibia (shinbone) to the femur (thighbone).
What are the most common knee injuries?
Tearing in these two ligaments comprises the top two most common knee injuries in athletes, with an ACL tear being most common. The other two main ligaments in the knee are the lateral collateral ligament (LCL) and the medial collateral ligament (MCL), but these aren’t as vulnerable to injury as the other two.
How to heal a PCL tear?
Incomplete PCL tears are likely to be left alone to allow the body to heal on its own. Most often the recommended treatment is the RICE method: rest, ice, compression, and elevation. A doctor may also prescribe anti-inflammatory medications and recommend NSAIDs to help relieve any pain.
Can ACL injuries happen suddenly?
The body is made to stop, start, jump, and change direction very suddenly, but ACL injuries can happen if the forceful pressure is too much for the knee to handle. When you have a serious injury to a muscle, ligament, or joint, it’s important to get it evaluated and treated by a professional as soon as possible.
What is the Worst Knee Ligament to Tear?
As a physical therapist, I am often asked by patients, what is the worst ligament to tear? The quick answer is that the ACL ( Anterior Cruciate Ligament) is most likely to be considered the worst ligament in the knee to tear. It is also the most common ligament to tear in the knee (over 100,000/year) The ACL is a ligament that helps stabilize the knee by limiting the movement of the lower leg, keeping it from sliding forward and limiting hyperextension of the knee. When the ACL tears, the knee typically becomes very swollen and unstable. The ACL can be torn with forceful trauma to the knee or and forceful twisting motion to the knee. It is more common with contact sports but is also seen commonly with sports with a lot of direction changes. The goal of this article to provide more information on what is the worst ligament to tear in the human body.
How long does it take to heal an ACL tear?
The biggest issue with a surgical repair is that it takes about 9 months to rehabilitate afterwards. Most people would agree that the ACL ligaments is the worst ligament to tear in the knee.
How many ligaments are there in the knee?
There are 4 major ligaments in the knee. To learn more about ligament injuries, go to our article on Ligament Injuries. Tearing the MCL (Medial Collateral Ligament) and the LCL (Lateral Collateral Ligament) is not as common as tearing the ACL. If you do tear the MCL and LCL, it is more common to be treated conservatively with therapy ...
What is the best treatment for a knee ligament tear?
Conservative treatment would include Physical Therapy can help with treating knee ligament tears, or other related injuries. Physical therapy may include strength training and stretching. It is important to regain full range of motion of the knee.
Can a PCL tear cause knee cap to be unstable?
Tearing the PCL (Posterior Cruciate Ligament) is not as common but also usually requires surgical repair. If not, the knee can become unstable and cause increased force to the knee cap. This can lead to excessive abnormal wear and tear to the knee joint surfaces.
Is it common to tear the LCL and MCL?
Te aring the MCL (Medial Collateral Ligament) and the LCL (Lateral Collateral Ligament) is not as common as te aring the ACL. If you do tear the MCL and LCL, it is more common to be treated conservatively with therapy and bracing but surgical repair is sometimes necessary.
Can you tear more than one ligament in your knee?
A severe trauma injury to knee can result in tearing more than one ligament in the knee. This may require more than one surgery to repair. If you want to learn more about the knee anatomy, go to this Knee Video.
