I had the Denovo juvenile cartilage transplant with TTO 8/6/10. My flexion is only 90 degrees. They have me doing a lot of stretching to get past 90 degrees. My defect was below the kneecap in the patella femoral area and larger than a quarter. My surgeon mixed the minced cartilage in a substance and then glued it in. due to the size of the area (he thought it would be smaller) he stitched an artificial ACI patch over it. I spent one night in the hospital and only needed pain killers for 4-5 days. I have in week 7 and discouraged with the range of motion. However the doc says it will come and I am in the ACI rehab guidelines which say 90 degrees by week 6 and 120 deg by week 8. Not sure I will there. When was your surgery, did you have the TTO, how did he implant the donar cartilage, how many degrees were you at week 7 and where was your defect? I was off crutches at 5 weeks, but limping, stronger now, but due to limited range of motion I walk funny. Do not see many Denovo people on this site.