I think diagnosis and then healing done by a "radionics" practitioner. Sometimes called "black box therapy". Is supposed to heal you or your horse/dog or whatever from any distance.
A very sore subject indeed !!!! Diagnosis seems to be lots of head scratching and saying "hmmmm, she's lame" - well I know that !!!! They very unwilling to xray as well and I dont know why. Got poultice on til mon to try to soften horn in desperate hope that it's an abcess that we just cant find. Vet and farrier have both looked and used hoof testers several times.
One instance I knew of sounds a bit similar to yours - the black box pronouced a tiny bone chip which had not been detected by an x ray, subsequently removed and horse continued to event at a good level.