30/04/2026
Let’s talk stifles… because I do think they’re getting overlooked 👀
(And for those more observant of you, no I’m not treating a stifle in the photo, but Lottie was having a lovely time so she’s my model for this particular image just for being pretty 🤩😅)
In practice, I see a lot of horses where the hocks get the spotlight first — and don’t get me wrong, hock pathology is incredibly common — but I do sometimes wonder whether we’re a little slower to consider the stifle as a primary contributor.
Because actually… stifle-related issues are not rare.
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The stifle relies heavily on the quadriceps femoris muscle group for stability. These muscles sit at the front of the thigh and are responsible for extending and stabilising the joint, particularly when the limb is taking weight and controlling movement.
When I think stifles, I always think down;
Downhill
Slowing Down
Downward Transitions
These things all require deceleration, encouraging the quadriceps to work hard to control the limb as it accepts weight. Rather than just pushing forwards, they’re acting like a brake — stopping the joint from collapsing and keeping everything stable.
That type of work is called eccentric contraction — the muscle is working while lengthening to control movement.
If we’re not regularly asking for that kind of controlled “braking” work, those muscles simply aren’t developing the strength they need to properly support the stifle.
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And this is where, in my experience, location really starts to matter…
Particularly here in Norfolk.
We are so flat.
Our horses live on flat land, they graze on flat land, and even for those of us who enjoy hacking, the options for proper hill work are limited.
They’re not walking up and down gradients.
They’re not stabilising on uneven terrain.
They’re not getting that natural variation in movement.
So a lot of our horses just aren’t getting that input — not in turnout, and not consistently in work either.
Which means we have to be more intentional.
We have to work a bit harder.
We have to do a bit better for our horses’ stifles.
Because if the environment isn’t doing that job for us, it’s up to us to provide it through their work.
And if you don’t have hills — which many of us here don’t — you can absolutely replicate that stimulus through your ridden work. Lots of well-ridden transitions, particularly downward transitions, and variations in pace (a bit of “speed play”) can be incredibly effective. Anything that encourages the horse to rebalance, come back onto the hindlimbs, and control movement rather than just push forwards will help engage those stabilising structures.
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When we talk about stifle pathology, we’re not just talking about one thing. It’s a complex joint, and there are several structures that can be involved.
Osteoarthritis within the stifle is something we do see, and it can present quite subtly. You might notice reduced impulsion, difficulty with transitions (especially downward ones), stiffness behind, or a horse that just doesn’t feel quite right. In some cases, particularly where there is bony change, you may also see reduced flexion through the limb and alterations in how the limb travels, but it’s rarely one obvious sign.
From a treatment point of view, this is where veterinary input is key. Corticosteroid injections are commonly used and can be very effective — they reduce inflammation and therefore reduce pain within the joint. But they don’t remove or reverse the osteoarthritis itself. It is a degenerative condition, so whilst we can manage it, support it, and often slow its progression, we can’t undo the changes that have already occurred.
Alongside that, you’ve got options like Arthramid, which works quite differently. Arthramid is a polyacrylamide hydrogel that integrates into the synovial membrane of the joint. Yes, it reduces inflammation and pain — but beyond that, it helps to improve the quality of the joint environment itself. It supports the synovial lining, improves lubrication, and contributes to more normal joint function over time. So rather than simply masking symptoms, it provides a level of biomechanical and biological support within the joint, which is why, in the right cases, it can be a really valuable longer-term option.
From a physiotherapy perspective, osteoarthritis is never just about the joint itself.
If that stifle isn’t functioning optimally, something else has to pick up the slack. And that’s where we start to see compensatory patterns developing — sometimes obvious, sometimes very subtle. One horse might overload the opposite hind limb, another might shift through the lumbar region, another might change how they load through the forehand. There are common trends, but no two horses compensate in exactly the same way.
So the approach isn’t just to look at the stifle — it’s to look at the whole horse.
Identifying gait adaptations, recognising compensatory movement patterns, and addressing areas that are under increased strain all form a big part of managing these cases. Because often, it’s those secondary issues that start to limit performance or comfort just as much as the original joint pathology.
Alongside that, physiotherapy can utilise a range of modalities to support the tissues at a cellular level — helping to improve circulation, reduce inflammation, and create a better environment for ongoing tissue health.
So whilst we can’t reverse osteoarthritis, we can absolutely support the horse around it — and in many cases, make a really meaningful difference to how that horse feels and functions.
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The menisci are another key structure — two crescent-shaped pieces of fibrocartilage (medial and lateral) that sit between the femur and tibia. They act as shock absorbers and are also rich in mechanoreceptors, meaning they play a role in proprioception as well as load distribution.
When the meniscus is involved, horses can feel a bit uncoordinated or unstable behind, sometimes struggling with balance rather than showing a clear lameness.
If a meniscal injury is suspected and not improving with conservative management, arthroscopy may be recommended. This is keyhole surgery into the joint, where a camera is used to visualise the structures directly, and any damaged or frayed meniscal tissue can be debrided to reduce irritation. In that sense, it’s not just masking symptoms — it’s directly addressing the source of the problem.
But that’s not the end of the story.
Rehabilitation is absolutely key afterwards. This is where physiotherapy comes in to rebuild strength, restore stability, and support the surrounding structures so the joint can function as well as possible. Depending on the modalities available, we can also support tissue health more directly — improving circulation, influencing tissue quality, and creating a better environment for healing.
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Upward fixation of the patella — or “locking stifles” — is another one we see. This is where the limb gets momentarily stuck in extension before releasing. It’s more common in younger or weaker horses, but body condition can also play a role, as carrying excess weight increases the load through the system and can make that release less efficient.
In many cases, management is focused on strengthening and conditioning, particularly through the quadriceps, as improved muscle function can help stabilise the system and reduce the frequency of locking.
Veterinary intervention is sometimes used, but often the primary approach is conservative.
One thing that’s worth considering, though, is what happens during those locking episodes. When the patella becomes caught and the horse then tries to release it, that repeated catching and release can place strain on the surrounding soft tissues, including the patellar ligaments.
Over time, that can contribute to irritation, inflammation, and reduced tissue quality.
So it’s not just about stopping the locking — it’s also about supporting the structures that are being repeatedly stressed.
This is where physiotherapy modalities such as Indiba radiofrequency or Class 4 laser can be really useful, helping to reduce inflammation, support tissue health, and improve the resilience of those soft tissue structures alongside a strengthening programme.
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We also see OCD (osteochondritis dissecans), typically in younger horses. This is a developmental condition where cartilage and bone don’t form quite as they should, sometimes leading to fragments within the joint. Depending on severity, it can cause stiffness, joint swelling, or intermittent lameness, and is often treated surgically via arthroscopy.
Alongside that, we occasionally see subchondral bone cysts within the stifle — fluid-filled cavities within the bone just beneath the joint surface. These can be developmental or develop over time and, depending on their size and location, may contribute to lameness or reduced performance.
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Something else that’s worth mentioning — because it’s rarely just one thing — is why these issues develop in the first place.
In many cases, it’s a combination of factors rather than a single cause. Genetics and conformation can play a role, particularly in horses with straighter hindlimb conformation or those predisposed to reduced joint stability. Hoof balance is another big one — if the foot isn’t loading correctly, that force has to go somewhere, and the stifle can end up taking more of that strain.
Muscle weakness, particularly through the quadriceps, and reduced overall stability can leave the joint more vulnerable over time. Body condition matters too — horses carrying excess weight are placing additional load through the stifle with every step.
In younger horses, workload management is really important. It’s not about not working them — they absolutely should be worked — but too much intensity, too much concussion, or too much repetition before the musculoskeletal system has fully developed can increase the risk of issues like OCD or contribute to earlier onset joint changes.
And then there are the more acute factors — slips, trips, falls, or repetitive strain over time — which can contribute to soft tissue injury such as meniscal damage.
More often than not, it’s a bit of everything.
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What I find with stifles is that they don’t always present as a clear lameness. Quite often, it’s more about movement quality. Reduced engagement, lack of push, difficulty sitting or collecting, or just inconsistency behind.
One thing I do sometimes see, as part of that bigger picture, is a change in the swing phase of the stride. A hind limb may drift slightly away from the body or occasionally towards the midline, depending on what structures are involved. But that’s never something I look at in isolation — it always sits alongside everything else I’m assessing.
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If you suspect your horse may be dealing with a stifle-related issue, it’s really important to work closely with your vet—particularly if there is any sign of lameness or you’re trying to pinpoint the exact cause. As physiotherapists, we can absolutely assess, support, and manage these cases, but having a veterinary diagnosis allows us to be far more targeted with rehabilitation, as we understand exactly which tissues and structures are involved.
If your horse is sound but you have concerns around performance, posture, or movement quality, there is no harm in having a physiotherapy assessment carried out—early intervention can make a big difference.
It’s also important to keep your wider team in the loop. Your farrier may be able to offer additional support through hoof balance and limb loading, and your saddle fitter should be aware too, as compensatory or asymmetrical movement patterns can influence saddle fit during rehabilitation.
A collaborative approach will always give your horse the best possible outcome—after all, it takes a village.
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And all of this really comes back to how that horse is using — or not using — its body day to day.
Because if the environment isn’t doing that job for us here in Norfolk…
we need to make sure we are.
