I had ACL recon w/bioabsorbable screws not metal ones and allograft and partial menisectomy where 30% of my medial meniscus (cartilage) was trimmed or "cleaned up." Post-op was !@#%^*, iced the knee a lot with that cooler contraption thingy. Did PT when I came to after general shortly after they wheeled me out of OR, !http://www.coolrunning.com/forums/eek.gif|src=http://www.coolrunning.com/forums/eek.gif|border=0! , also at PTist site, PT homework at home and oh had that CPM machine for a few weeks at home. Gradually did more PT both home and at gym w/PTist, stationary cycling, nothing hardcore, always ended with icing and elevation which felt good. After workouts at home I'd use frozen peas or corn and elevated knee, leg, foot for 1/2 hr. Exercise was moderate with bike riding w/o traffic around neighborhood for short workouts, some walking. Again, nothing strenuous and I never over did it. At 6 months post-op I was given the go-ahead to run but again OS (orthopedic surgeon) said to do the walk-run-walk thing keeping in mind that workouts shouldn't be too long otherwise I'd go backwards in my recovery/rehab. I'd walk for a long time, incorporate some running and ended with a walking warmdown. This went on for weeks, months until eventually I could run more and walk less. I always run every OTHER day and rest on non-running days and if I insist on exercising on non-running or rest days, it's some easy bike riding, walking the dog, swimming and non pounding on the joints exercise. Knee feels good, no pain. I only get pain if I increase my mileage too suddenly instead of gradually so I've learned. Also, I'm very careful now. No slipping, twisting, stepping off a curb absentmindedly, no tripping, falling or doing anything clumsy. No stopping-on-a-dime sports such as basketball, soccer, tennis, baseball, etc. Remember good hydration. Dehydrated joints will hurt more. Drink water, eat healthy and less. I keep my weight down since even a slight weight gain will hurt my knee or so I've noticed.