Please don't get the idea that amputation is a once-and-for-all cure. Right now, you're probably thinking something like "Get the leg off and get rid of all the current problems."
As the mother of an above-knee amputee, I can tell you that living with an amputation is a daily grind - blisters and sores on the stump, repeated visits to the prosthetist, a new prosthetic if you lose or gain weight, sweating inside the prosthesis on hot days and finding a pool of perspiration inside when you take it off, needing crutches when you get up to the toilet at night, shoulders getting sore and eventually wearing out because of using crutches - etc, etc.
Hygiene of the stump is supremely important and if you get a boil it puts you on crutches for weeks.
Minor issues include not being able to twist or turn rapidly, not being able to bend your prosthetic fast enough to get it out of someone's way, often having to climb stairs with 2 feet to each step, being abused for using a handicap parking spot (because you don't look handicapped), possibly even having to have your car modified, so you can drive it.
I think that spending a year doing what's necessary in order to cure a joint infection is easy, when compared to living with an amputation for the rest of your life.
Please contact Dr Maale and see what he advises, before you make a final commitment to having an amputation.