This could be a long story. I'll try to keep it short.
When I was a kid, I had a bone/joint problem, then called Perthes disease.
I was a 'Group 4' (total loss of part of the joint), basically not expected to recover, wheelchair/crutches bound.
I recieved what was then a revolutionary treatment, involving wearing fibreglass splints on my legs. I went to a normal school messed about in the mud, did normal kid things. I recovered, pretty well perfectly.
The standard treatment then was a min of 2 years in traction in hospital, in plaster. This had a very low success rate for group/stage 4 kids.
I was reading up on current treatments last night.
It is a min of 2 years in plaster etc. 30-odd years later they are still using this stupid useless treatment.
They don't use the splints, because (and this is the bit that gets me angry) access and mobility problems in normal schools.
A major influence in the recovery from Perthes is the stimulation of blood flow, maintenance of mobility in the joint. Sticking kids in plaster immobile in a bed just isn't going to do it.
I'm strongly tempted to try hunting down current 'experts' in treating this disease and try to teach them something. I still have my x-rays from when I was 6.
