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.
Get help from a doctor now âº. See your surgeon: Clicking in knee replacements is very common as the parts are metal and plastic(polyethylene). Popping may indicate some swelling or fluid build up in the knee.You should see your knee surgeon or knee replacement specialist to have it evaluated....Read more.et help from a doctor now âº. See your surgeon: Clicking in knee replacements is very common as the parts are metal and plastic(polyethylene). Popping may indicate some swelling or fluid build up in the knee.