Ouch. That's no fun. I have a good part of my miniscus gone and the part remaining "flips" on me from time to time and it feels pretty arthritic. I was doing legs twice a week and extensions were killing me too. Had to back off to once per week and really warm-up slow. It's effected the weight I handle on squats because the "flipping" seems worse on squats. Take care and good luck.









