The causes of knee pain

Medi-Rehatek will introduce the causes of knee pain today.

The knee joint is a large and complex flexion joint in the human body. It is subject to stress, has structural stability and flexibility. When knee pain has occurred, and this pain is often overlooked or is arbitrarily considered to be arthritis and other diseases. In fact, there are many reasons that can lead to knee pain.

 There are several common cases that can cause knee pain.

1, Fat pad strain

Fat pad fills the gap in the front of the knee in order to strengthen the joint stability and reduce the role of friction. Fat pad strain may be due to trauma or fat pad hyperemia ,hypertrophy and inflammation caused by long-term friction, adhesion that occurs with the patellar ligament, so that the knee movement is limited. This injury mostly occurred in some people over  the age of 30 who have the more frequent movement like regular walk, mountaineering or squatting. Patients will feel knee pain, pain will exacerbate when it is fully extended, but joint activities are not restricted. The symptoms are more obvious after fat pad strain.

2, Meniscus injury

It is a common injury for athletes. When their lower extremities bear load and the feet are fixed,  suddenly they have excessive knee extension in the internal and external rotation knee (such as playing volleyball, the players are in the defense and sudd6enly turn the body to save the ball with diving action), it is possible to cause meniscus tear. Meniscus injury will have a significant sense of knee tear, then the knee joint feels pain, mobility is limited,patients limp.The joints show swelling and slippage, and snap during joint movement.

 3, Knee joint traumatic synovitis

Knee synovial membrane is one of the main structure of the composition of the knee. Synovial cells secrete synovial fluid that can maintain the surface lubrication of articular cartilage  and increase the range of joint activities. As trauma or excessive strain and other factors can damage the synovium, which will produce large amounts of fluid, so that intra-articular pressure increases.If the fluid is not promptly removed, it is easy to cause joint adhesions, affecting normal activities. Patients will feel knee pain, swelling, tenderness, synovial friction has unsmooth sound. The most significant pain is when the knee is extremely active extension, especially when there is some resistance to do knee exercise, the pain will increase on the lower patella.When knee is extremely passive flexion, pain is significantly increased. 

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