What is the length of recovery after having lateral release surgery for chondromalacia of the patella?

I had a lateral release when I was 15 or 16 and I was on crutches for about 3-4 weeks and then I was unable to go back to sport for a month of so afterwards. When I went back to sport I took it very carefully until I felt my leg was able to hold up to the type of activtites I was doing. I also has pysio to help with my recovery process.