1727, from Japanese samurai warrior, knight, originally the military retainer of the daimio, variant of saburai, nominal form of sabura(h)u to be in attendance, to serve..
The bubbles make a noise when they burst. This is called cavitation. Another cause for painless popping in the knee is when the ligaments and tendons catch as they go over a bony lump and pop when they snap back into place. Or the clicking and popping may be caused by catching on soft tissue or scar tissue within the knee.
We generally donât worry about cracking or popping when it isnât associated with pain or swelling.â Curious why your... Yes. Probably 95% of knee pain caused by arthritis is osteoarthritis, which is caused by âwear and tearâ on the joints. Other types, like rheumatoid arthritis, are much less common causes of knee pain.