I hope this helps. I'm a week after LDR Brachytherapy surgery and thought I should share in case anyone is heading on the same route. (Feel free to ask qustions if it will help) I'm now the proud owner of 83 radioactive seeds.
On the day, checked in early with only a small glass of water that morning. Staff were great, had a good chat with the anesthetist and the surgeon dropped by. Two hours of general anesthetic and home early evening with a catheter. Told to down 2 litres of water a day and take Tamulosin once a day. Soreness in the expected place but about the same as the biopsy.
The next day, removing the catheter was enough to make me wince but over quickly. The hospital phoned to make sure I wasn't in urine retention. Have been passing urine many times a day and so far haven't been out for more than an hour or so. Sometimes urgent, flow a little bit less than usual but I'm only one week into this.
Apart from the urinary changes, I've been really washed out energy-wise. Hopefully this will improve soon. CT scan booked for 4 weeks after the op.
Good luck everyone.