What is the best recovery from a knee operation for a cartilage tear ?

not a large amount of time, I've had operations on both my knees for cartilage problems and i also had to have my ligaments cut at the same time to reposition the knee cap and on my right knee i was up and about with no crutches the next day and within 2 weeks down to one crutch and 3 weeks walking normally. On my left knee the operation wasn't a success so that was a lot longer and i actually have to go back next month for more surgery on it. Physiotherapy is very important though, it might be annoying, and painful, but it's so important!!!