14 year old DS broke his collarbone around 5 weeks ago (rugby 
). Bad break, quite splintered on ends, and 2cm overlap, so they operated a week later with a plate and screws.
In a sling, all good. Wound healed, no pain, good movement hand, fingers etc, no numbness.
Follow up at 4 weeks (which I think was actually a delayed 2 week appointment) was under a different team. Grumpy doctor, couldn't understand why he was seeing him. Checked above, did an x-ray, all still in place but "no evidence of healing yet", which really upset DS tbh.
Anyway, just had letter for 6 week check - clashes with an fairly fomal, so far as school are concerned, end of key stage 3 exam. Going to have to move one of them.
Was planning on emailing school to get them to rearrange but I'm actually wondering whether a collar bone is likely to heal significantly between 4 and 6 weeks? Would I be better speaking with the hospital, or is that just going to mess up their system?
DS stoic, but really struggling with lack of sport. And I'm quite concerned that the doctor was so blunt about the healing, because everyone else we'd seen had been talking about physio from 6 weeks?
If it matters, he's well and truly through puberty, and I appreciate that he's not like a 6 year old, bone wise!
Sorry for ramble. Question is, I suppose, how long should this bone take to heal, and is it worth moving the hospital appointment?
Thanks.