Anterior Cruciate Ligament Injuries

anterior cruciate ligament injury tear

What’s up ? This is THE stephane ANDRE. With my training, I’m interested in biomechanics to avoid injuries. I read « Sport Medicine Media Guide » and I learned some good stuff.

Knee is the largest and most complex joint of the body. There are 4 primary ligaments (with their muscles and tendons) and secondary ligaments for the knee to function properly. Here are the ligaments of the knee : there are 2 ligaments on the side the medial collateral ligament (MCL) and the lateral collateral ligament (LCL) and two crossed ligaments in the center of the knee, the anterior cruciate ligament (ACL) and the posterior cruciate ligament (PCL).

Anterior cruciate ligament connects the front top part of the shine bone to the back bottom part of the thigh bone and keeps the shin bone from sliding forward.

anterior cruciate ligament

Injury

anterior cruciate ligament injury tear

There are several ways to have an injury to the anterior cruciate ligament :

  • The injury can be done because of a direct hit on the knee, which often happens in team sport.

  • The injury can be done without contact with an object in a situation where the knee forced to be in a abnormal position, which causes a tear in one or more ligaments of the knee. Or when an athlete in the race change direction. Or when an athlete make a hyperextend of the knee when landing a jump, which often happends in agility sports.

Diagnostic

In the majority of cases, the doctor is able to identify what is the injured ligament. But the knee can also be injured at the joint on the surface and in this situation, it’s more difficult to diagnose because of knee swelling. To make an accurate diagnosis, it will be necessary to use a MRI scan or arthroscopy.

Prevent

There are several fast, powerful movements that lengthen (eccentric phase) and shorten (concentric phase) a muscle. These prevention programs are for injuries without contact. These exercises are to improve the nerves/muscle control of the knee. These prevention programs use plymetrics, balance and strength/stability exercises.

Plymetrics

It’s a fast, powerful movement that lengthens (eccentric phase) and shortens (concentric phase) a muscle. The concentric phase increases the muscle power. Here is an example, an athlete who jumps from a box and immediately jumps into the air after touching the floor.

Balance

Balance exercices are done with the wobble or balance board. It’s also possible to perfom exercices by throwing a ball with a partner while balancing on one leg.

Strength/stability

To improve single-leg core strength and stability, there are excellent exercices such as jumping and landing on one leg with the knee flexed and momentarily maintaining this position.

Surgical treatment

In the past, there was a technique that consisted of stitching the ligament together but it was rarely successful. Currently, the technique involves reconstructing the anterior cruciate ligament by building a new ligament from tissue taken from one of the other tendons around the knee or from on organ donation. This tissue passed through drill holes in the thigh bone and the shin bone, and then ancored in place to create a new anterior cruciate ligament. Over time, this transplant becomes mature and becomes a new living ligament in your knee.

Recovery

recovery

Rheabilitation of the knee after the reconstruction of the anterior cruciate ligament requires time and work. To have a complete function, this can last between 6 weeks and 6 months depending on the severity and level of activity. Rehabilitation rate may take time depending on the specific requirements of the sport/physical activity of the individual.

The overall success rate of the anterior cruciate ligament surgery is very good. A lot of study show that more than 90% of patients are able to return to sport without symptoms of knee instability. It’s true that some patients complain of stiffness and pain after surgery, that is why it’s necessary to make an aggressive rehabilitation until the new surgical technique to reduce these problems.

Statistics

  • One of the most commonly injured ligament in the knee

  • Female athletes participating in basketball and soccer are 2-8 times more likely to suffer anterior cruciate ligament injury.

  • Athlete who suffer anterior cruciate ligament injury at increased risk of arthritis development later in life.

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-Steph

An Extraordinary Tool To Solve All Your Problems

tool box

What’s up ? This is THE stephane ANDRE ! I watched an Olivier Roland’s video  and I learned some good stuff.

Nature has given an extraordinary tool to every human being. This tool has different performance depending on the people but it’s the best for solving problems compared to the tools invented by humans.

This tool is our brain. This tool is better than a computer because a computer needs a human to work. For now, artificial intelligence has lower performance than the human brain.

Unfortunately, many of us don’t use our brains to find solutions and solve problems that are important to us. Many of us consume a lot of distractions. The question is : « Are we asking enough questions to our brain to find solution ? ». If you don’t give problems to your brain, your brain will be less and less efficient. It’s the same principle for your body.

If you give junk food to your body all day long, you will be fat, bitter, you will not have any more energy, you will not have any more libido. Everything that will comes out of you brain will be diminished in quality and quantity. If you will give healthy food to your body all day long, you will be slim, you will have more energy, you will have a better libido. Everything that comes out of your brain will be increased in quality and quantity.

Training your brain

training brain

To improve the brain to solve problems, it’s necessary to ask questions. A question is the interface between our brain and reality. This is what will put the brain in mode : « search for solutions ». By asking questions, you will look for different angles of approach to deal with the problem. The better the question and the better the solution to the reality of the world.

To have a good quality of question, it’s necessary to learn to educate oneself with books, trainings, meeting people who share their experiences, etc. Realize that you have to dedicate time to solve problems, allows you to organize your days. It’s like dedicating a few hours in your day to play sports. There is a method that I advise you to test, it’s to have a diary.

Attention, it’s a special diary because you’ll ask yourself questions. The first thing is that you’ll tell events of your life and this will allow you to better understand them and better understand yourself. And the second thing is that you’re going to ask yourself questions. There will be general questions like: «  How can I become happier ? ». And more specific questions like : « How can I become happier with the 80/20’s law (Pareto’s principle)  from today and see a measurable result next week ? ».

With questions, you put your brain in mode : « search for solutions » and you find several ideas to test to solve the problem. It’s the human process to find a solution since first hominids. Imagine, millions years ago, first hominids already found solutions because of a constraint. Imagine this scene, a hominid finds an animal with a carapace that is dead. The hominid is hungry and seeing the animal dead, he’s even more hungry. He asks himself this question : « How can I eat this animal that I can’t eat ? ». His brain goes into mode : « search for solutions ». After a few minutes, he remembers that by tapping a stone on something, the stone become sharper. After several tests, he manages to cut the animal with a carapace that dead to eat it.

Virtuous circle

virtuous circle

This human process is a virtuous circle. You ask yourself questions to find solutions to problems. These solutions create other constraints that lead to others problems. So you have to ask yourself other questions to find a solutions. To evolve, we need challenges and there are always challenges in the world. Do you realize that millions of years ago, first hominids created tools with stones and wood and today we have internet technology ? With internet, people from distant country can read my blog’s articles 24/24 7/7, it’s incredible.

Among these questions, there will always be questions that will have different answers depending on what the situation you’re in your life. For example the question : « How can I become happier ? ». When you’re single, you have a solution. When you’re in a relationship, you have another solution and when you have children, you have another different solution. Solutions are influenced by different variants in your life and it’s important to ask yourself this question throughout your life.

Reserve some time in you day to ask yourself questions to solve problems. It’s a kind of physical activity for your brain. It’s a good process to become a better version of yourself. But beware, there are solutions that you will find quickly and others, it will be necessary to work on for months or years to find the solution.

Subscribe to my newsletter and share this article if you think it can help someone you know. Thank you.

-Steph