I noticed when I was doing a set of seizas on a day where I had some tightness in my posterior knee that when I came to the last 20-30 degrees of flexion that my knee would pop. There was no pain from the pop but it seemed to make my knee tighten up. I saw an ortho who checked the integrity of my ligaments and had me do some meniscus tests of which all seemed attached and I could perform the tests with no pain. I was traveling this past week so I decided to see if some down time would help. Am back now in my full routine and the popping is still there.
It is not a normal crack or pop that one can produce by purposely cracking their knuckles or neck. It is a big pop that almost feels like my tibia and femur are rubbing up against one another until the pop which feels almost like my tibia is popping into place as a result.
The only thing that I can think of is that I did overextend my right leg a bit a few days before the popping began.
Anyone have any ideas, similar experience or suggestions would be greatly appreciated!