Hello, yes, that hoof confo is also common for 'navicular' horses. Any hoof confo can suffer from 'navicular'. They used to differentiate between 'navicular syndrome' & 'navicular disease' & there was little understanding about how/why it happened. 'Navicular syndrome' really just means chronic heel pain, for a variety of reasons and when it's 'confirmed' with xrays, that means that the original soft tissue damage has progressed to the stage of bony changes.
It is essentially about weak/damaged caudal hoof development. This is sadly common in domestic horses & can be due to many reasons. But combined with a 'broken forward' or 'broken back'(eg too long toe/low heel or too high heel) hoof/pastern axis, this can really effect the ligaments, bones, joints even more.
As for 'special shoes', I do NOT advise shoes for navicular generally. That's because shoes are palliative only. It used to be thought of as incureable and progressive disease, so there was nothing else for it but palliative. And bar shoes or such, which take weak heels further out of commission, then wedges which change angles & therefore pressure points, do indeed tend to be effective palliatively, for a time at least.
But these days, we know that when dealt with appropriately, the 'progression' can generally be halted at least, and usually the damage is healable, to a fair extent at least. And using conventional palliatives works against the foot, doesn't actually help heal anything. So... I advise saving 'palliative only' measures for when you've given rehab a really good go and decided the horse is 'too far gone' for anything else to help. BUT so saying, this is a quite slow progressing 'disease', so I wouldn't say it's necessarily wrong or too detrimental to use palliative shoes in the short term, while you do your research & decide on the most appropriate treatment.
hoofrehab.com & barehoofcare.com are 2 sites with quite a bit of info.