If you've torn your meniscus, it might take 24 hours or more for pain and swelling to begin, especially if the tear is small. You might develop the following signs and symptoms in your knee:  A popping sensation Swelling or stiffness Pain, especially when twisting or rotating your knee Difficulty straightening your knee fully Feeling as though your knee is locked in place when you try to move it Feeling of your knee giving way 
you've torn meniscus  take 24 hours pain swelling begin  especially tear small  develop following signs symptoms knee:  popping sensation swelling stiffness pain  especially twisting rotating knee difficulty straightening knee fully feeling knee locked place try move feeling knee giving way 
torn meniscus