These feet belong to new horse Becca who arrived here yesterday. She was put into remedial shoes and wedged pads following a navicular diagnosis and was also given Tildren.
Although these helped for a few months the lameness returned recently, which is why she has now come here.
The pads and shoes are trying to increase the profile of the back of her foot - giving "support" is the usual description.
The shoes mean her frog receives no direct stimulus and most of the load is taken on the rim of the foot, where the shoe sits.
Out of the shoes and pads its a weak foot but it should soon be looking a lot healthier.
I've posted before that I am dubious about shoes providing "support" -
http://rockleyfarm.blogspot.co.uk/2011/04/shoes-and-scaffolding.html They have probably improved Becca's landing in the very short term, as she is landing flat at the moment, but they tend to weaken the palmar hoof at the same time.
By contrast, our objective over the next few weeks will be to rebuild the frog, digital cushion and heels as mush as possible and if we are successful with this then she should regain a better, heel first landing which will be a more long-lasting solution.