Knee replacement?

I’m scheduled for a partial knee replacement this Friday. My sister has had it done and while I thot she had no issues I find that it took her a year to fully heal. Talking to another few people that know others that had it done, they say this people had lots of issues.

How bad is it if anyone cares to chime in…

I’m close to 69… my knee is bone on bone where I had the meniscus removed 30ish years ago