I had been having an issue with a chronic, veryy low level lameness issue to the point it was nearly undetectable. Rather than bring the vet out again I took the horse to the Marion Dupont Med Center fora one stop shopping sort of check. Three hours later the diagnosis came down that the horse had bilateral lameness in front, slighlty worse in the right front. The doctor's eaxt words...he's a thoroughbred. Low and underrrun heels and long toe compressed the deep digital flexo tendon that runs under the navicular bone. Added to that, the horse, at some point, probably an old track injury, chipped the navicular bone in the right front. There were some very very minor changes in both navicular bones but the Dr indicated it didn't look degenerative....yet. Treatment: injection of the coffin joint,probably an annual requirement and corrective shoeing with a bar shoe, squeare toe, 2 degree wedge, frog support and a strict 5 week trim schedule to keep the toe short.
On recommendation of another trainer I also had a Lyme titre pulled and the horse has tested positive; treatment starting as soon as the meds got to the barn. Barn has been notified and notification is going out to the other boarders to be aware of possible ticks on their horses. I use a fly/tick repellent daily and re-apply after washing down...wish I knew how he got infected since I have never come across a tick on him.
So now the question is..how much lameness is attributable to the navicular issue and how much to the muscle issue that is created with Lyme?
May not know for a bit.
(banging head on brick wall)