Proximal Suspensory Desmitis

Quick update. I’m in tears. He sees what I see. He thinks there is something wrong with his axial skeleton. He said his explosive behavior is usually from lower neck pain so they’re checking for ECVM, neck X-rays, back X-rays, rectal ultrasound of the SI, we may do a nuchal ligament biopsy to rule out DSLD but they said it’s not a validated test it’s just an experiment.

Update 2. C6 C7 facet arthritis (possible reason for medial lateral imbalance of his left front) No kissing spine. Doing ultrasounds now of his back.

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This was the specific shoe. She took the clips off set it back and shortened the trailers

I found this with my guy just a month ago. He was also pretty explosive with increased work. 5-7. I also suspect PSSM with my boy.

Hoping vet has some good treatment options for you. I’m sorry it’s such a complicated issue with several different diagnoses going on. Hoping for the best for both you and Spankie.

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Ok I just got home and it’s a lot to process. I apologize if this is long winded, I spent 6 hours driving and 4 hours at the vet and only had breakfast today.

Let this be confirmation to anyone who has a gut feeling that there is more going on to trust it, and hire a 2nd, 3rd, or 4th opinion.
I knew he had back pain. I was specifically asked not to further investigate his back pain by the vet that diagnosed his PSD. This is after not getting any further diagnostics done because Spankie did not palpate or flex or react like he had back pain during a static physical exam. I acknowledged that he is not reactive at a stand still under no pressure but when he is ridden or worked in any way he presents like he has back pain, like muscle spasms.
Spankie at Brazos Valley
I took him to Brazos today to be evaluated for castration adhesions. He did a very thorough physical exam and Spankie reacted pretty severely to the deep neck palpation which I’m realizing wasn’t done at A&M because otherwise that would have been the only reactive part of his physical exam. Right away the vet today noticed his asymmetry, he even palpated thickening of the muscles running down the right side of his lumbosacral area. The muscling on his left side was not as thick. We know he would cock his right hind forward and that his right pelvis was always pulled forward, likely because of the thicker and contracted musculature on the right side which existed because he was protecting a painful area - his back. When I asked the 2nd vet why he stood like that she said it was because he found it to be more comfortable.

The vet today absolutely saw his back pain, it’s undeniable. He wanted to get X-rays of his neck, back, and ultrasound his SI and his back. They found C6 C7 facet arthritis first. He has beautiful spacing along his entire spine so no kissing spine. The ultrasound of his back was perfect. I asked if he would be able to feel the iliopsoas with the rectal examination and he said he could. He said most of the time he can palpate the iliopsoas and get a reaction from the horse’s pain, when I tell you he didn’t even get all the way there before Spankie reacted in pain. His right iliopsoas is completely atrophied. The left is enlarged. There was muscle spasms here. EXACTLY what I felt was happening. He did not find any castration adhesions. When it came time to ultrasound his SI the left SI was beautiful. The right SI is injured. There is a huge difference and when I get the images I will post them here. He said this kind of injury to his SI was likely from a pasture accident, and he would have presented incredibly lame. And he had never had an accident here where he was incredibly lame in the right hind like he described he would be. He said this could have happened to him as a foal. So when he was started and brought into work, this untreated and unidentified injury was at play the whole time. The symptoms would disappear as I could get the muscling better in the right iliopsoas but it would never stick because it’s injured. He said the shortened cranial phase in his right hind isn’t from the suspensory at all it’s from the SI. He does NOT have primary proximal suspensory desmitis. Just like I had a feeling about all along. He got the desmitis from standing camped under trying to take the pain away from his SI. Because he couldn’t carry himself correctly he was chronically on the forehand and that is what caused the C6 C7 facet arthritis which is what caused the medial lateral imbalance in his left front which the second vet wanted to inject last week.

He received PRP to both SI, and platelet poor plasma to both iliopsoas muscles. He received steroids to both sides of his neck. He is confident this will heal the damaged SI and when his suspensory is healed we can begin to rehab the SI but not until then. I am transferring full care to the third vet and not going back to the second vet. His suspensory would have never healed with the continuing SI pain that was being denied by the second vet. My horse was continuing to get worse and the rehab was putting us both at risk of getting hurt as my horse protested from untreated and undiagnosed SI issues. We are scaling way back on his rehab and going back to hand walking for the next week. I am to do range of motion exercises in his hind legs daily as well as carrot stretches for his neck. I go back in 6 weeks to rescan the suspensory and hey! With the back pain addressed there might be positive changes in his suspensory instead of none! Going to this third vet, being truly heard, where he actually looked at my horse and got him to a point where he may completely heal was half of what I spent at the 2nd vet on the first visit. Considering I got a TON of X-rays, total ultrasound of the back, rectal ultrasound, assessment for adhesions, PRP (4 total injections today) and 2 more injections to the neck.

Knowing my horse has a future again - priceless.

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I’m very interested in how they did the injections into the iliopsoas. My young horse is chronically tight/sore there. Likely different scenario than with your horse, but I had never heard of this before…seems like a difficult area to target.

Thanks for being a strong advocate for your horse. Hope he responds to treatment!

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Everything he did was guided by ultrasound. He didn’t penetrate the iliopsoas but injected it in a way that it would saturate into the structure and be exposed to the treatment as much as possible.

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I’m glad you kept digging and hope Spankie starts to feel better soon!

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Wow! I can’t imagine the relief you must feel at finally being heard and taken seriously after all this time.

I am so hopeful you can realize a positive outcome and a bright future for Spankie!

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I am so pleased for you that you were heard and that this vet investigated all of those things. I’m not necessarily pleased that there were findings, but on the other hand, you have some answers. I do applaud you for pushing, getting that additional opinion/exam, and dedicating your time and other resources to the horse.

I do find that kissing spine (which he doesn’t have) and/or SI issues and PSD often go hand in hand.

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I feel like we finally got to the bottom of it. We treated all the sources of pain and dysfunction so he should feel comfortable and stop compensating. This was a domino effect of lameness stemming from the damaged SI.

I am really curious how he injured it. In all my research it said it’s really hard to truly damage the SI and when it is it’s from “traumatic sheering”
Dr. Warnock said this is a common injury when they’re foals when they slip and fall. I did ask his breeder if she recalled anything like that happening and she said she never saw him be lame like that and he was a normal baby growing up. He was turned out on like 250 acres or something.

I cannot wait to see how he blossoms. If he was this incredible when he was injured I can just imagine how amazing he will turn out to be when he is healed. It’s only up from here.

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I hope this person comes back and continues to read this story and learns that it’s okay to keep pursuing answers if your gut tells you to.

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This says to me that the breeder probably didnt see the babies regularly.

Congrats on getting to the root of the issue. I also think its amazing that the collective hive mind on this forum pointed to an SI injury earlier on in this thread.

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Good on you for pursuing diagnostics, and answers are always relieving! Still, you do have to rehab those suspensories properly (which means not riding wtc for a while, which I note you said you’re starting back at handwalking) so that poster who said slow down wasn’t entirely off base.

I really really hope you’re able to get him back to 100%! Just remember that even though the PSD and the branch suspensory injuries might not be the root problem, they are still there. So is the neck arthritis. So is the SI injury - assuming he did it as a foal, that is 5 years of chronic reinjury and protective remodeling. All of these pieces may or may not heal 100% and will always be weaker than uninjured tissues.

I don’t say this to rain on your parade, I promise! I say it to remind you that you have a diagnosis, but now you have to do the rehab. Injections are great to unwind the inflammation and get things feeling better but they don’t actually fix the injury. He’s young, so I imagine you’ve got a good chance of recovering to a good spot. There’s just no way to tell what that will look like.

Best of luck, and keep us posted! Jingles for a fabulous recovery!

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I agree, I know it will take time and I have time. I’ve been trying to address this for 2 years. I just want to reiterate that I was not cantering him since I received the diagnosis. I do agree the rehab was too fast but that was prescribed by the second veterinarian. I don’t even think he should have anything on his back at all until his SI has had time to heal. I think it’s going to be a lot of hand walking.

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Just from my experience, I’ve had to repeat treatments on a regular basis for SI injuries. Sometimes at 6 months or even less when using biologics (initial anti-inflammatory response wears off before much healing has happened) during the rehab phase. Same with necks… sometimes every 6 months. So don’t be discouraged if you hit a point where you feel like you are stalling out or going backwards. That might be the case but it’s not necessarily the end.

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I’m okay with this. Regular maintenance versus career ending is a win in my book! Now I know what he looks like when his SI hurts and I feel like this is all going to make me even more aware of how he’s feeling.

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I wish you all the best,truly.Right now I imagine you are feeling very elated to have these multiple problems diagnosed.This would not be good news for me, but maybe for you it is?
Please be careful about how much you invest in trying to fix a very compromised horse, both emotionally and financially, and for both your sakes.
Again, I wish you the best.

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It is good news. I’d rather deal with an injury than what was originally diagnosed as a conformational defect.

The changes is his neck were caught early and are secondary. We expect the hoof imbalance to improve. The suspensory will heal now that the source is identified and the correct rehab will begin. The vet is very optimistic for him and given that he actually looked at the entire horse I trust him a lot more. I’m going to trust the process and take it day by day.

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Exactly what I’ve been wondering about, but once you (read: me) have a DSLD horse you see it everywhere.

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