@TheNaughtyDaughter
I’ve had both knees done ten years apart. From that you might deduce I am not young.
This is a window on my experience but different hospitals may differ in their approach. Pick up any leaflets you can find at surgery or hospital, or Google for after care advice. Dad should also be given a leaflet by his surgical team.
As soon as the physios are happy that he can manage stairs, he is likely to be discharged.
This might be as quick as just 2 nights in hospital.
They should offer him gel ice packs & possibly a toilet seat raise thingy. Lowering onto and standing up from the toilet can be excruciating.
They might also provide a waterproof cover for his leg so he can shower. No bed baths OP!
He must get up and move around. He’s not going to be an invalid!
IF there is any issue these items might not be provided, buy on Amazon in advance. Gel Ice packs reduce swelling and pain so are an absolute god-send. Use them regularly especially after moving around on crutches. He must keep mobile. No lying about for too long.
The wound will be dressed. There shouldn’t be any bleeding. The dressing will be changed after a week or ten days. Keep it dry!! Clips or stitches out (ouch) after ten days by nurse at surgery.
Exercises! This is of the upmost importance.
Your dad must do the prescribed exercises. He absolute must because if he does not it will be a total waste of NHS money and upheaval and pain for him. The exercises are excruciating. The worst pain ever but must done regularly several times every day. The metal joint is not compromised but the surrounding soft tissues are pulled & stretched so it’s those which cause the extreme pain but they absolutely must be kept mobilised and stretchy or he’ll suffer later.
I was offered and accepted 6 weeks post-operative physio at the NHS gym. It was supervised by my physio and was a godsend. It was often uncomfortable but I persevered and am so glad I did attend once a week. Ask about post operative physio.
if your dad is brave and perseveres with the prescribed exercises which are absolutely key to full mobility, he will be pain free and walking normally very soon after his op. Mind over matter. Good luck to him.