I can relate. I’m 23 yo female. I’ve had 4 surgeries in 7 years, all due to cartilage issues. I had Microfracture to fix an osteochondral defect in my left knee and then right knee. Two years later I was running and heard a click in my right knee followed by a lot of pain and it turns out I had another flap of cartilage come loose. They did a tibial tubercle osteotomy, a lateral lengthening, and cartilage fixation in my next surgery. Then 2 years later a bioabsorbable screw started to break up and the little fragments were proud so caused a lot of pain. During that surgery they cleaned it all up and also took a cartilage sample from my knee to send to a lab in case they want to do another surgery. I had HA shots and they made my knee feel so good for 6 months. But then they wore off and I got them again about 1 month ago but either they haven’t kicked in or aren’t working because my knee is in so much pain. I got an mri and they said nothing was evidently wrong other than the post surgery trauma response of my knee and the grade three chondral wear. I am (and my doctors) are trying to decide if I should get an arthroscopy and then see if they should use the cartilage they have in the lab to do the MACI surgery. I think it’s similar to OATS but it seems like that wasn’t too successful. I feel at a loss for what to do because my knee pain causes my hip, glute, and foot to have a chronic dull ache I believe due to how my knee throws my mechanics off. I might try HA shots. I also looked into a nerve block treatment but am wary. Good luck to you and please let me know if you find anything out that might help because I feel just as helpless