Advice on horse starting to rear/bunny hope in trot

JasmineandPikkle

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Hi, we have the vet booked for the end of the month but looking to hear of other users experiences/comments on my OTTBs rearing.

I have a 7 year old OTTB, who I have owned for three years and got off the track. By way of very brief background, we spent the first year letting the horse down, treating ulcers, sorting the feet and teeth out, putting on 100kg of condition/muscle and just a general switch off for the horse. We then spent 4 months of groundwork and rebacked the horse. We are now about a year into ridden work and had been progressing well. We had started to go out to some little intro dressage shows and lots of little pole sessions etc. I have a very thorough and dedicated instructor who we see weekly also. We are taking things incredibly slowly as the horse is a very sensitive soul and that is fine by me! He is very high maintenance (which was very aware of when getting an OTTB) and is always on Omeprazole to assist with a reoccurrence of ulcers, he has pads and specialised shoeing to assist with the thin soles, has teeth checked every three months, saddles checked every 8 - 12 weeks, and physio every 4 weeks.

About five weeks ago, he started to do what I would call bunny hops/humping in the trot, usually after three or four strides and would then repeat every three or so strides, which would result in him trying to stop moving forward or result in a greater rear if I put my leg on. This behaviour is worse on the right rein but is also present on the left rein. At first we put it down to various factors such as: behaviour, greenness, change in temperature/season and would try and ride through it, however the behaviour is still present and it is making riding very unpleasant for both me and him. We have tried him in both our schools, at an arena hire and out hacking both on road and field and it is quite often present still. I have in the last week had the physio again check his back and have had an oroscopic examination for his teeth (both of which are fine). Saddles are to be checked by our saddler this week however if I am honest I don't think these are causing any problems, as we have them checked so regularly. I have tried both the jump and dressage saddle, different saddle pads and girths to see if these make any difference.

Speaking to the vet, we now have a full lameness work up booked in at the end of the month, along with a neurological exam, back/hock xrays and SI scan. Horse is completely sound straight line/on lunge, different surfaces and the bunny hop/rearing movement is not present on the lunge in full tack. Horse has good confirmation but is quite narrow behind.

I just wondered if anyone had something similar with their horse and what the outcome was? I assume KS, SI or hocks could be the culprit but just looking for other users experiences/outcomes?

Long term plan for the horse is to compete 90/100 BE.

Sorry for the lengthy post, just driving myself crazy waiting for the vets.
 
I’d suspect KS personally. So common in ex racers. What makes me more suspicious is that he goes ok without a rider… the added weight of the rider can make the already-close spinous processes impinge more, causing pain.

You’ve done the right thing booking the lameness work up, it’s horrible waiting though and imagining all the worst possibilities - been there!

Good luck; I hope it turns out to be something that’s an easy fix 🤞
 
You seem to have checked the usual "pain" things.

Is there anything else (even remotely tiny) that has changed recently?? Like, management (however small a thing), diet? different bridle/different bit?? I had some iffy behaviour from mine when I put her into a bitless bridle a few years back - not immediately noticeable - but over time we had started to tank in trot, hollow-out back in canter, and poke nose out!! Changing her back into her bitted bridle solved the problem (plus necessary physio to correct the soreness around her withers/poll, & deferred pain to her sacroiliac area).

Or maybe this is ulcers?? I think all you can do is what you're currently doing. Good luck.
 
Could be just saddle or hocks or KS. Until you have full work up done, and I'd definitely xray back and neck if nothing found in hocks, then it's all a bit guesswork as you've done everything right in terms of post track rehab.
 
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