Swelling of Joint
There is an inflammatory reaction that accompanies menisci Injury. This inflammatory process leads to the swelling of the joint, just as with any injury. [4] It typically takes a few hours for the swelling within the knee joint from a torn meniscus to develop, and the knee can become difficult to move based on the quantity of fluid accumulation and degree of pain. It may be also difficult and painful to fully straighten and extend the knee when fluid builds up inside the confined space of the knee joint because the knee has the most space available when it is flexed at about 15 degrees.
The proportion of swelling may not necessarily be so much in most cases such that you had not easily noticed it. Therefore, menisci injury is often associated with intermittent knee joint swelling and a knee with a torn meniscus frequently feels “tight” due to this swelling.