Just back from the hospital. All is well. The X-ray showed no sign of infection, which doesn't surprise me because it's feeling good and looking good. The doctor didn't even unwrap it! I asked about the stitches and he told me to go to the first aid centre to have them removed "after ten days". I asked if this was ten days after the accident or ten days from now. He waved vaguely and said "when they are dry and it seems they are ready". Very precise and medical.
So that's it, other than the stitches coming out, no check-ups are necessary unless something goes horribly wrong. Would I be stupid to take the stitches out myself? I really don't like going to the doctor at the best of times and now with covid, I'm even less inclined!