A few months ago we told you if it is bad to crunch the knuckles of your hands, but we know that there are also other joints of the body that creak when moving. It is very common to be seated and when you wake up you hear how your knees snap, right? Today we tell you if you have reasons or not to alarm you when this happens.
Crepitation in the knees?
The crack or click you hear when moving a joint is called crepitus. His presence may be due to several reasons, but in the case of the knees it is interesting that you understand how it works.
The knee is the largest joint in our body and the main link between the thigh and the lower leg. It is composed by the common action of:
- Ball joint
- Two meniscus (perform cushioning for the femur and tibia)
- A joint capsule containing synovial fluid to reduce friction and lubricate
- Four ligaments that provide stability
The knees are often crunched by the accumulation of gas in the synovial fluid, which forms small bubbles. When this happens, if we bend the knees, the bubbles break producing that clicking sound. It does not hurt or is abnormal, so you should not be scared if this happens.
On the other hand, if the crepitus also causes pain you should go to the traumatologist to make sure that everything is going well. Being the largest joint, also supports more weight and is the most suffering. That’s why overweight or too much practice of physical exercise can wear out the cartilages that form it (osteoarthritis).
What other factors can make the knees creak?
Not only the accumulation of gas can lead to crepitus accompanied by pain. There are other injuries such as:
- Meniscus injury It is quite common to hear this injury in professional athletes or regulars in sports. Especially if your physical activity is based on running.
- Knee of the runner. Technically it is called patellofemoral pain syndrome (PDPS). It originates when there is an overload on the patella and ends up degenerating the surface of the cartilage.
- Patellar chondromalacia. In relation to the anterior lesion, chondromalacia is the degeneration of the articular surface of the cartilage of the knee.
So if you feel pain when some joint creaks, it is necessary that you go to the doctor to assess if you have a major injury. If it’s just a painless sound, do not worry at all.