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
