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Discuss horse riding and ownership on our Horse forum.

DSLD in 3 year old

6 replies

plsbekinddelicate · 31/12/2025 08:55

Pls be gentle, this is really hard. Username changed as I don’t want to forever look back on these days. I have the most lovely 3, rising 4, year old Appaloosa filly. She’s been with me for 9 months having arrived in the dealers yard in quite a sorry state - thin, rain scald, dropped fetlocks. I knew I was taking a risk and I don’t regret that one but. She’s put weight on, her coat gleams, she looks absolutely amazing…until you get below the top of her legs. Her left hind is the worst, when she walks the fetlock is almost kissing the ground. The right isn’t quite as bad but still drops around 50% below where it should.
Theres been behavioural changes too. Over the summer she didn’t want to leave the herd, resorting to rearing and running. I’ve over 30 years experience, mainly with TB’s, so rearing is nothing new but I’ve genuinely never seen anything quite like hers. Since October they’re in at night out during the day. The path to our field goes down a steep incline. As soon as she gets near the top she explodes. Some days it’s just a strike with her foreleg, other days it’s full blown rearing. Obviously, she will be putting the bulk of her weight through her hind legs going down here.
for the last month she’s been increasingly grumpy. When asked to back up in the stable she has bitten me 3x now, twice on the shoulder once on the face. There is little to no warning of this. She’s started being difficult to lead in from the field, again striking out and threats to rear. Over the last 2 weeks I’ve noticed her hock in the worst leg looks “dropped” and is beginning to rotate. Yesterday I noticed signs her front fetlocks are beginning to lower too. She lays down a lot, doesn’t struggle to get up and is happy to rear and tank around the field with her mates though. I’ve got a fantastic farrier, he’s an experienced remedial farrier (I don’t use him for that, I started using him for my old boy with navicular and never stopped). He’s been doing her feet for the entire nine months and has already said there’s nothing he can do for her. I’m an experienced equestrian, I worked as an EVN for a few years, I’ve tried everything in my toolkit and am running out of ideas. Her lips are pursed almost all the time when she isn’t eating. She dislikes backing up or turning on tight circles immensely. She yawns a LOT. There’s no history of injury and all four limbs are affected. She’s constantly hyper alert. I’ve given her bute every day for a week and while the lip pursing has gone she’s still very hyper alert and yawning, still reluctant to lead sensibly especially on inclines.
I know if I was advising anyone else I would say this is an absolute text book example of degenerative suspending ligament disease. It isn’t curable. It’s about managing pain until the balance of quality of life tips.
AIBU that I don’t see a value in spending thousands to get a diagnosis? It would mean travelling her to a clinic for scans, x-rays, possibly nerve blocks, to tell me that her joints are dropped. I know that, I can see it. That her behaviour indicates pain. I know that. And AIBU I’m thinking about letting her go to sleep. Even with bute her manner is still hyper, she’s still laying down a lot. But she’s only 3 years old and in every other way she looks amazing. Honest opinions but gently delivered would be much appreciated

OP posts:
plsbekinddelicate · 31/12/2025 08:55

No idea how to edit but degenerative suspensory ligament not suspending ligament - thanks autocorrect

OP posts:
D332015 · 31/12/2025 10:44

Reading the start of the post, I reached the same conclusion you seem to be leaning towards.

It's awful, particularly with such a young horse, but it does sound like it might be the kindest thing to do.

All the animals in our lives deserve dignified, peaceful deaths - it's the best gift we can give them.

nolongeranutjob · 31/12/2025 11:42

I had my 6yo with DSLD euthanised due to him being dangerous to handle and in constant pain. He'd been backed and ridden for a while and I thought I'd get a bit more time with him by retiring him; I didn't. He went down hill very quickly. I didn't have his feet trimmed or even pick out his feet in retirement (6 months) as it was causing more pain for him to put weight on the other leg and was dangerous for handler / farrier.

If you need confirmation of the problem, an ultrasound of the suspensory ligaments is not expensive, but it wont affect the outcome for your horse as the disease is genetic. Mine showed the ligaments were totally disrupted and in some cases calcification can be seen due to the defective repair system.

I'm so sorry you are also experiencing this but you need to be strong and do the best thing for the horse.

snowpo · 31/12/2025 21:34

Honestly what would be the point in confirming the diagnosis. It would be stressful for her and you can't fix the problem.
She might look well but as you've said her behaviour indicates pain and is getting worse.
So so hard when you're around her every day but better to let her go before she's in more pain or she injures you.

Pleasedontdothat · 01/01/2026 07:34

You know what is the right thing to do. You’ve already given her a better life in the last few months so you should feel proud of yourself for that. You know what’s wrong with her so there’s no point putting her through more stress to get a formal diagnosis which isn’t going to change the outcome. Deciding to euthanise an animal is never an easy decision but in your poor horse’s case I think it’s a clear cut one.

liveforsummer · 01/01/2026 08:16

I’d probably like to talk it through with an equine vet although ours are from a renowned teaching hospital, and also know a personal basis, who will have seen this before. They’d give an opinion and any experience without undergoing all those tests. I just think I’d feel better having talked it through

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