Hi Renatelynne! It looks like you have been through a very difficult time with all these surgeries. Why did your OS say your leg would be 3" shorter? Is it because so much bone has been lost through all the surgeries? (That's a cute doggie you have on your shoulder, by the way!)
You are the same age as I am, and at this time, I feel like I'm 80! Not that 80 is bad, but I've got a lot of years to live...actively! Fusion is the best decision for me. It's not right for everybody, and you have to really think about it and do your homework to see if it is right for YOU.
My OS put me in a cast last summer ( a removable one with lots of velcro straps). This showed me what it would be like to have my knee fused. I don't mind going down steps one at a time, nor do I mind getting into and out of a car. I've got that mastered, thanks to practice with the cast. I am in far less pain when I am in the cast, but as you can read from my posts prior, it's no picnic when I'm not wearing it, and I MUST take pain meds just to do simple things around the house. Going out to do errands and driving is out of the question if I don't have the cast.
I've adapted to sitting on the edge of a chair, rather than sitting completely in it, and I have a very comfy recliner that I am in when watching TV. Props the leg up very well!
It is harder to stand for a long period of time, as my left leg (the one with the cast) is shorter than the other, as my leg is slightly bent in the cast.
I cannot straighten, nor can I bend my knee more than 75 degrees at this time, and it's doubtful that it will improve. As you may have read, I also have RSD, so movement makes the RSD (nerve pain) worse. So....to heck with bending....life is better not worrying about how many degrees I have (or don't have) and wondering "how much pain am I going to be in today"?
I have a 16mm spacer in my knee right now. Do you know how many mm or inches your spacer is?