Hi, I have had two pg's during which I was told my baby had possible skeletal dysplasia, you have all my sympathy, it is horrendous.
My advice would be firstly go and see Prof Nicolaides at the Fetal Medicine Centre on Harley St for his opinion. If he concurs with the other doctor you may also wish to get to see dr Lyn Chitty at UCLH, she is a genetics expert specialising in skeletal dysplasias. Prepare yourself for no particular conclusion however, that is the problem with dysplasias, there are so many forms that they cannot be conclusively diagnosed pre-natally (with the exception of achondroplasia, the most common form, which amnio can identify). I think that Emkana, the poster referred to by anon, has a DS with achondroplasia, it is not a life threatening condition.
FWIW, my first experience turned out to be a shocking mistake by the "world class" doctors at Queen Charlottes fetal Medicine centre, to which I was sent after standard 20wk scan showed short femurs. They managed to transpose both
ds1's arm measurements making them 23mm instead of 32mm which of course made the graphs look v worrying when plotted with his short femurs too. I went to Prof N and got second opinion thank goodness, DS is perfectly fine, now 5.5, with long legs
!
With DS2, he was IUGR so there was a lot of speculation about whether there may be some condition causing restricted growth, as opposed to my placenta simply not functioning. Amnio at 21wks ruled out achondroplasia but for most of the rest of the pg skeletal dysplasia was always mentioned as a possibility, DS2's femurs were even smaller, proportionally, than the rest of him. Prof N was adamant that there was none, Dr Chitty maintained that there "may well be some form of dysplasia" and left us hanging with that one....she couldn't be any more definitive. DS2 was born 15m ago, healthy and happy but tiny and he is still small. He shows no obvious signs of any condition but he is also not catching up with his growth as a typical IUGR baby does so while we think and hope the Prof was right, Dr Chitty may still prove to be! The main thing for us though, is that it looks like the only issue is his size, which seems like nothing compared to the problems we were contemplating before he was born. I really hope that everything turns out as well for you.
Good luck, keep me posted, will be thinking of you.