Guide to common knee injuries for runners

- Dec 26, 2019-

From February to June each year, runners begin to prepare for the spring marathon, and it is also a period of the high incidence of knee pain.


And there is a very interesting phenomenon. Novice runners will have knee pain when the weekly running volume reaches 24 ~ 32 kilometers, and the runners who participate in the first marathon will appear when they run 23 ~ 26 kilometers. Pain in the knee joint.


For runners, the knee joint is the most common injury site. Most runners have experienced knee pain at different stages.


Let ’s take a look at the common knee joint injuries in running.


Patellofemoral joint syndrome


Patellofemoral joint syndrome, a series of symptoms including pain and discomfort around the sacrum, is usually caused by problems with the trajectory of the sacrum.


When the knee is flexed, the sacrum does not move smoothly on the femur, but generates a certain amount of friction, causing softening or abrasion of the cartilage on the backside of the sacrum.


treatment method

Most patellofemoral joint diseases can be improved by non-surgical treatment. The improvement plan focuses on increasing flexibility and strengthening the quadriceps and hamstrings.


During recovery, avoid locking your knees, and avoid any extreme bending postures (cross-legged sitting, kneeling, or squatting) or leg extensions (extend your legs against the coffee table).


2. Patella tendinitis

Patellar tendinitis is an overuse injury that is characterized by weakness of the quadriceps, tenderness above the patellar tendon, and slight swelling.


For the vast majority of runners, injuries occur when additional training is completed outside of the daily running content, such as after climbing, running, or strengthening.


treatment method

For acute cases, it is recommended to approve 10-day non-steroidal anti-inflammatory drugs (if tolerable).


Normally, a strength-strength training program should be conducted, focusing on the stretching and strengthening of the quadriceps. Ice massage may have some benefits.


3. An anterior cruciate ligament (ACL) and posterior cruciate ligament (PCL) are located in the knee joint cavity, which restricts the forward and backward movement of the femur on the tibia.


In comparison, anterior cruciate ligament (ACL) is more susceptible to injury, but running rarely causes damage to both. The cruciate ligament is often broken after very strong trauma, and most runners have suffered cruciate ligament injury due to participating in strenuous sports.


The injury method of the posterior cruciate ligament (PCL) is basically the same, and the alternating movement mode is easy to cause injury. Sudden braking, emergency stop, or knee rotation and overextension can cause these injuries of the knee joint and are potential risk factors for knee ligament injury.


treatment method

The treatment option for cruciate ligament injury is surgery. The best solution is to have surgery as soon as possible so that other injuries can be avoided.


4. Medial collateral ligament (MCL) and lateral collateral ligament (LCL) injuries


The medial/lateral collateral ligament can limit excessive medial and lateral knee movement. This injury is usually more common in football, rugby, and skiing.


A sudden fall to the ground or tripping over something during running can easily twist to the ankle, which is enough to cause knee ligament damage.


treatment method

Regardless of the degree of injury, the knee joint should be treated with PRICES. Mild injuries may require only pressure bandaging and support using elastic bandages. However, knee joint braces should be used for moderate or severe injuries. The main purpose of rehabilitation is to strengthen the muscles of the medial knee brace.


5. Meniscus damage

Meniscal tears are the most common injuries of the meniscus and are seen on the outer, middle, inner or both ends of the meniscus (anterior or posterior). Meniscal tears are often accompanied by torsional motion, excessive flexion, or excessive extension of the knee joint.


People with a torn meniscus usually complain of pain at the joint line, inability to bear weight in their lower limbs, lameness, and joint bounce, jamming, or lock-in. The knee joint cannot be fully flexed and stretched, and some degree of swelling may occur.


treatment method

A meniscus tear requires surgery to remove the entire meniscus (called a meniscectomy). However, due to the popularity of arthroscopic surgery (small surgical instruments entering the knee joint through a small hole), removing a small piece of torn tissue can treat a meniscal tear. Depending on the location of the meniscus tear, sometimes the torn tissue can be re-stitched together by surgery.


Do not perform the weight-bearing exercises on the affected leg during the initial period of meniscus injury or recovery after surgery. Hydrotherapy is the ideal way to help rebuild joint mobility and muscle strength. Then you can carry out the weight-bearing exercise step by step within the bearing range.


6. Fat pad syndrome

Fat pad syndrome is also known as Hoffa syndrome. There are a lot of fat pads around the kn