Navicular problems? There is hope!
Many vets diagnose horses with any kind of heel pain as being "navicular". Typically it is navicular syndrome, not actually navicular disease which is when there is actually changes in the navicular bone. Most navicuar pain comes from incapsulated thrush! Yes... THRUSH! It is not just the black stinky stuff on either side of the frog, the entire frog is infected which is eating into the digital cushion and causing pain on the deep digital flexor tendon and navicular bone. It can also be caused by improperly trimmed bars that are jamming up into the navicular bone. By trimming the bars properly, eliminating all sugar from the horse's diet (sugar feeds fungus which is what thrush is), soaking the feet in colloidal silver and getting a proper heel first landing with plenty of frog pressure (the frog should be about 1/8" below the level of the heel), the infection can be killed, and the digital cushion and frog can be rehabilitated which will relieve the heel pain and "navicular syndrome". Find a knowledgeable barefoot specialist who can treat these issues and the horse will be fine in no time. I had a client whose horse was diagnosed with navicular, the vet wanted to put all the typical bars, pads blah blah blah on the horse, these only treat symptoms, not the problem. We used methods from the Swedish Hoof School whom I was trained through and after 3 trims the horse is fine! Navicular is not the end of the world and most of the time is a very treatable problem.