Hi,
Actually Maddy hasn't stayed at DK hospital - we have been there for outpatient appointments (many many of them, with physio, occupational therapy (two different kinds) and ortho doctors - and also with the social worker there) and have had one inpatient stay for some tests, but she was given home leave for the one night so she didn't stay there.
I'm not sure whether they have room for the parent to stay although I would guess that they do not have that option available. MAYBE for infants but I would doubt that it would be available with older children. Actually, Maddy will need a surgery in about a year that will be done at QMH but I think even for that, I think they will want to keep her and not allow me to stay with her (and she'll be 18-24 months old at the time). I haven't confirmed that with them, but just that's how the HK system seems to work unfortunately.
DK is an extremely good hospital for orthopedic issues like your son's short femur and they do limb lengthening all the time. They have even mentioned it to me for Maddy - although I don't think we will go that route with her. From what I know about the surgery, it is quite painful and requires a long rehabilitation time - and in her situation, it may do more harm than good. But if he is to have the surgery in HK, DK is the place to do it.
We live in North Point and even with all of our outpatient appointments there, it gets quite tiring going back and forth all the time. I have considered when our lease is up looking for a new place around Pok Fu Lam just to be closer to the hospitals (both QMH and DK) but we've always lived on the other side, all our friends are there, my older daughter's kindy is there... but it WOULD be nice to be closer, particularly if/when she needs surgeries or other hospitalisations...
I know that may not answer all your questions - if you have more questions or just want someone to talk to please email me - I'm out of HK at the moment so I haven't been reading the forum very much... my email address is nicolejoy81(at)gmail.com