Firstly, while those pics aren't great, it looks like it's probably not too bad. Also if well managed - & often even when not - if you're not wanting to compete in high grades with the horse, it's not usually a huge issue. That said...
'Club foot' can be caused by a variety of things & generally it's a body issue too - tho that may be a 'chicken or egg' thing. As such, it's not a good idea to try to 'fix' it with hoof care alone. I would not be trimming those high heels down to 'ideal' parameters any more than I'd standing the other one up on high heels to match.... at least without good bodywork support & very gradually. As a basic rule, I'd be just trimming it to close to sole plane, as per the other one. If she's been clubby forever or for a long time, the sole plane will be lower on that foot.
Especially as she's still young, I'd get a good veterinary chiro to check her out. It could be that something's out in her wither or some such, that can be fixed. He may also give you exercises for her, to help stretch that leg. Having her graze on hills, long grass, and putting her hay/feed at around knee level can also be helpful, so she doesn't have to go one leg forward, one back to reach the ground - one common reason for club foot & horses like us are usually one-sided.
Now, assuming she 'needs' to stay clubfooted ever after... of course significant imbalance is going to affect her body.... assuming affects aren't already there & caused her hoof imbalance. It can get worse with age too, if it's not well managed. However, if you're not wanting to turn her into an elite athlete, it's probably not likely to be a big deal for her.
Hoof damage is another thing though. Because of the angle, P3 is pointing into the ground & the horse is landing toe first, which will put more pressure on the sole, dorsal wall and navicular region, for eg. Damage to the laminae & angle of the foot can essentially 'founder' the horse. The heels & rest of the caudal hoof, being 'jacked up' will not be getting any good stimulation so will remain weak & non-functional. So I would be ensuring I kept her well & frequently trimmed, to keep the toe from running forward, the heels from overgrowing any more. I'd probably be padding the toe sole for protection and also under the frog (*not under heel buttresses*) for support, for work. Because there is already excessive force on the foot & joints & because she's still very young, I'd be reluctant to shoe - this tends to have immediate palliative results, but the peripheral loading & extra concussion will cause further damage. I'd use boots or such where needed.
Last edited by loosie; 05-23-2013 at 02:02 AM.