I've never been that happy since a long time! I saw my doctor and had x-rays yesterday! Doctor was happy with my condition, lengthening and consolidation was "lovely"!
I managed to go through the first 3 weeks from surgery (the most "overwhelming" ones according to Dr Giotikas) without too many problems and I am already 2.1cm taller!

Next step now is to increase my activity and walking distance per day. (I got the green light for some limited sightseeing in Athens..I got the big fat g-nails after all!)
I'm happy to upload my xrays here if someone tells me how to do it.
@HelloMe: Giotikas is at LIPS Battersea now. I was thinking of hospitals like King Edward VII, Schoen, Princess Grace, Cleveland Clinic etc. I believe Weymouth street hospital is an inpatient facility hospital, not just for day cases.