Richard.
I guess all of it depends on how difficult the surgery is for the surgeon and you. And no one can answer that. You won't know until it's done. I had mine a short time and it came out easily. As for having one for over a decade I would only guess it's gonna take awhile to get out. Now if that affects your healing I don't know. I can only go by what I went through. If you are having similar trouble as I did no matter what you will find relief in the end.
If you have a desk job I would only guess also.... It would be like healing at home. Just sitting around anyways. But even as easy as mine was at 8 weeks I could have gone back but I would only be doing harm to myself if anything happened. And I look out for myself before I do the company I work for. Paycheck or no paycheck. I went out on disability and fortunately I have a union job where my union has disability payments. Not much but it was better than nothing.
Richard.