First, I would not plan on a revision PKR---their success rate is not good---you don't want to find yourself in this position again. I would opt for a TKR who success rate is much higher than PKR.
It is true that 3 months is the time for a TKR revision--but that does not mean you will be lying in your bed of pain for 3 months!!! I found the first two weeks to be difficult. I was taking oxycontin twice a day and Percoset every four hours. I was zonked big time!! I lay in bed with my propped up on three pillows. I could get up and walk without a crutch in the house and go to the bathroom and get myself some lunch and ice.
I would not have been able to take care of kids then---too many drugs. How old are your kids? You would need someone in your house---not for you--but for the kids. I think you could hire a team of high school girls who would be glad to make a little money. So, one from 7am to 2 pm and one from 2 pm until 7 pm or bed time. Or split the day into three shifts.
You could talk to the kids, read stories, get juice for them. But, I would have had a difficult time picking anything up from the floor. I felt too weak.
At three weeks, i began to emerge from the Shadows!!! I rode my bike outside at 4 weeks for 12 miles. But, I still did feel weak, took naps, still on lesser pain meds---lortab until week 4 and then Tramadol. I still did spend a lot of time lying in bed or on the couch with my knee propped up on three pillows. I could walk around, took the dogs for a 2 mile walk--but then had to rest for two hours.
Most of all, I was not impaired, but I had to spend a lot of time with the leg up to get rid of the swelling. the worst of the pain was over by week 2. but, I had to be careful not to overdo. I was not cleaning (ha) or making meals or changing beds, or spending anytime with laundry. My husband did a lot during the first month.
By six weeks, I was pretty good. I needed to rest an hour for every two or three hours up on my feet. I could ride my bike 20 miles---but it was hard to sit in a chair for any length of time--the leg would swell if it was down too much. I hardly ever cook anyway---I eat mostly salads or raw veggies. By 8 weeks, I felt really petty good, but still had to rest, not at full strength.
I think you could hire help for 8 weeks and you would be good. The students could cook and clean. Most of the time, If find high school kids are great---they work hard and many of them need the money---for prom, for yearbooks, etc. My kids always worked and they were great employees. If you did your knee while school was out, I think you could make it work, If you don't know any kids, talk to the guidance counselor or the home ec teacher. You can interview the kids early---have more than one so that if one gets sick or whatever, you will have a back up.
I know that this would be an extra cost---but so is pain!!
It does take 3 months to feel really good---but you are not in bed until then. I got up about 2 hours after I got back from the operating room---went to the bathroom, took off my yucky gown thingy and put on yoga clothing!!
I am laughing--I live in Montana and our legislators meet for 90 days every two years--which most of us thinkis too much!! one of them proposed to outlaw yoga pants and anyone going without a shirt!!! He bemoaned flesh colored clothing!! We are all thinking of getting some flesh colored, nipple showing, yoga pants and going to protest!!!!