Friesian's hind legs give way at hip (warning - Long!!)

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As title.
A bit of background first. This is my friend's horse who I ride and look after. I have been riding him since he was 5 and he is now 8. He is a big 17 hands lad, pure friesian, and we mostly hack 3 times per week on average and have done some schooling in the past.

When I first met him, he had a locking stifle issue predominantly thought to be because of him being kept in a lot at previous yard and with him growing and the muscle not yet being strong enough to support. We managed to sort this issue with regular work and strengthening exercises and he also had the muscles injected last year to tighten the ligaments.

What we have noticed is when in walk, both under saddle and in hand and also in the field, his back legs give way every now and then. It is worse downhill, and sometimes happens when going from trot to walk too.

Vet came and has pinpointed the issue to his hip/SI area and says stifle is no longer the issue. She suggested a course of physio first to try and sort. He felt great after the first session and had another one a week later and all felt good. Physio said there was quite a lot of tightness in the back end and he had to have his pelvis adjusted. I have been working him as usual. A while back some may remember that I had issues with him not wanting to go forward. I presumed thi was a confidence issue as he is quite a spooky horse so we went back to basics and long reined him out and built on it until we could eventually hack anywhere again. The behaviour was almost like napping but there was no rhyme nor reason to it - it could happen away from and also towards home. He would plant, kick out and sometimes rear and go backwards.

I thought we had got past this stage but the other day we were out and I was on the way home when I asked him for a little bit of lateral work in walk as I sometimes do. He planted his feet, kicked out and we had a bit of a battle to send him forwards. I gave him his head and rode him through it but I am now questioning whether this behaviour is down to being asked to step under more behind and him not being comfortable doing it. We have booked another physio appointment for Thursday so will see what she says - he did fall over in the field last week running about in the wet but it didn't seem like he hurt himself but it could be this?

I am thinking this will probably end up being more of a veterinary investigation but just wondering if anyone else has experienced this before. It is a new one for me!

cake if you got this far! Sorry it's long!!
 

ester

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Did the vet do a neuro exam?
I'd be thinking the same as you given the reaction to being asked to go lateral. Somethings not right/hurts.
 

paddi22

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yeah I'd go straight to vet stage and cancel the physio. otherwise you will spend a fortune on getting the physio to ease symptoms and not tackle the root of what's causing the issue. your money would be better off getting a full lameness done up by equine vet. it could be anything from SI issues to sciatica etc. it's interesting that after long lining he felt better. did he build up muscles and topline long lining and then lose it when ridden again?
 
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No, he hasn't had a neuro exam, Vet was actually there for another reason but we mentioned this problem at the same time. I have tried the pulling tail trick to see if he loses balance but that doesn't cause him to but I am no He was tight in palpation across the hip/hind quarter area and Vet said it could literally be anything when is why she suggested physio first and if bo better then start exploring what it could be. If you rub your hands down across his quarters, and theb down his back legs (like they do to get them to stretch through that area of the back) sometimes that is enough for it to buckle. It's almost like he hasn't got full stability up there. :(

If he was mine I would go straight down the Vet route but he isn't so I have to respect my friend's decisions but I an going to talk to the physio and see if she thinks this is more a vet job which I think she is going to agree with and then will go from there.

He still has a fair bit of muscle, I have just noticed he is not as forward these past few weeks as he was, and with what happened the other day I think it's got to be related. I believe spookiness can also be a sign of discomfort. He has been in regular work since January and is quite fit now apart from this.
 

catembi

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PSSM...? My quarter horse has it & when he became symptomatic, got v explosive & also collapsed suddenly under saddle. He was a lot worse when it was cold & wet (now retired). You can do a DNA hair test for PSSM...maybe read up on the symptoms & see if it strikes a chord or not.
 
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PSSM...? My quarter horse has it & when he became symptomatic, got v explosive & also collapsed suddenly under saddle. He was a lot worse when it was cold & wet (now retired). You can do a DNA hair test for PSSM...maybe read up on the symptoms & see if it strikes a chord or not.

I guess it's possible but he doesn't have a lot of the symptoms. I tested my Appy for that many years ago (he is negative) so I did a lot of research into it at the time. He is also on a low starch diet so I am not sure about that one but certainly food for thought.
 

millikins

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I posted on here about our connie gelding who had similar sounding issues last year. A normally very forward going pony who suddenly didn't want to canter and became less and less willing to go forward. Also when ridden a feeling, out of nowhere that he'd lost his back end and might go down. Our issues compounded by lockdown and emergency vet visits only. We did months of longreining which he was fine with, when he did see the vet he had his hocks injected which made no difference. Then I put his old, falling apart saddle on and he was instantly his old self. I had replaced his saddle with same make and size but in brown, it was checked by a saddler and given the all clear but something was obviously putting pressure on his lumbar region. I don't think our pony's problems sound as bad as yours but there are perhaps similarities.
 
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