Double X Veterinary Services

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Double X Veterinary Services Dr. Don Lee, DVM
Dr. Emily Vermillion, DVM
Equine Performance Medicine, Lameness, Dentistry and Preventative
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“To be a good equine vet you have to have patience and dedication, and you have to be passionate about what you do. It takes staying up all night and getting up the next day to do it all over again. I hope when someone talks about me they say that I try as hard as I can every day.” - Dr. Don Lee, DVM

10/30/2026

To some, it looks like just another injection. But to these horses and their owners, it can mean continuing down the road comfortably, performing at their best, and having the support they need to keep doing the job they love.

Performance maintenance isn’t about how many injections a horse receives. It’s about understanding what that individual horse needs to feel and function at its best.

That looks different for every horse.

For one, it may mean adjusting their exercise routine to incorporate more long trotting and less loping. For another, it may mean addressing hoof balance, changing their conditioning program, or utilizing regenerative therapies to support an injured structure. For others, it may mean treating inflammation within a joint that has been limiting their comfort and performance.

Not every horse that walks into our clinic leaves with a bill listing injections. Some leave with a better understanding of their horse’s body, a diagnosis, and a more individualized plan for conditioning, management, and long-term care.

But we also believe injections have developed a reputation that doesn’t always reflect the important role they can play in equine sports medicine.

Injections are not inherently bad. When appropriately selected, administered, and monitored, they can be an incredibly valuable part of maintaining a performance horse’s comfort, mobility, and quality of life.

The important distinction is understanding why we are injecting, what we are treating, and what we are doing beyond the injection itself.

Pain and inflammation don’t always exist independently. A horse experiencing discomfort in one area may begin compensating through other parts of its body. Over time, those compensatory movement patterns can contribute to muscular tension, altered biomechanics, reduced range of motion, and additional soreness.

And sometimes, that creates a cycle that becomes difficult to interrupt through exercise and management changes alone**. This is where appropriately used therapeutic injections can make a meaningful difference.**

By reducing inflammation and discomfort, we may be able to help a horse move more comfortably and begin utilizing its body more correctly. That improvement can create an opportunity for the veterinarian, owner, farrier, and trainer to address the underlying contributors through corrective shoeing, targeted strengthening, conditioning adjustments, rehabilitation exercises, and other therapies.

Sometimes a horse needs to become comfortable enough to begin the very exercises that will help it become stronger, more balanced, and better supported in the long run.

And that is something we believe deserves more attention when discussing performance maintenance.

Different injectable therapies serve different purposes. Corticosteroids, for example, are commonly used to reduce inflammation within joints and can provide significant relief when appropriately indicated. Orthobiologic products and regenerative therapies, including options such as Renovo and Alpha2, are intended to support the body’s biological response to injury or joint disease, although their mechanisms, evidence, and appropriate applications differ.

None of these treatments should be considered a universal solution, and not every horse is a candidate for every therapy.

Injections do not replace proper conditioning. They do not correct poor hoof balance, eliminate underlying conformational challenges, or repair every injury. They should never be used simply to mask pain and push a horse through a problem that needs further investigation or rest. But they absolutely can have a place in responsible, proactive performance horse care.

Our goal isn’t to make a horse comfortable just long enough to get through its next run. It’s to understand what is causing the discomfort, determine which treatments are appropriate, and build a plan that supports the horse well beyond its visit to our clinic. That may mean periodic therapeutic intervention. For others, it means changing the way they’re conditioned, managed, or supported throughout their career. And others may need annual maintenance to keep them from developing patterns of compensation even when the program offers the best they can to keep them physically comfortable. And for many, it’s a combination of veterinary treatment and the work done at home that produces the most meaningful results.

Good maintenance isn’t about injecting everything that hurts. It’s about finding out why it hurts, treating what needs treatment, and giving that horse the best opportunity to move comfortably and perform sustainably.

At the end of the day, performance maintenance isn’t just about keeping horses competing… It’s about taking care of the athletes who give us so much, and helping them stay comfortable doing it. ❤️

WPRA FINALS - WACO 📍Double X Veterinary Services will be at the WRPA Finals the second week of November in Waco, Texas t...
10/29/2026

WPRA FINALS - WACO 📍

Double X Veterinary Services will be at the WRPA Finals the second week of November in Waco, Texas the 12-15th with appointments starting afternoon of the 12th.

Please call the clinic to schedule an appointment at (940) 514-9500 or email [email protected] with the name of the show you wish to schedule for as the subject line.

10/27/2026

In love with the “unconventional”… but is it really unconventional?

The “Whorlbone.”

There isn’t actually a literal bone called the Whorlbone in the horses body. The word is commonly used by performance veterinarians to describe the trochanteric bursa, which can become inflamed and sore.

Whorlbone lameness, technically called Trochanteric bursitis occurs when this bursa or the surrounding gluteal tendon becomes inflamed, often from direct trauma, a fall, or compensation. Reluctance to engage the hindquarters, a shortened or toe-dragging stride, difficulty backing up or picking up leads, and soreness over the hip or gluteal region, and a change in how the effected leg swings are all signs an owner and/or veterinarian may notice.

In many cases, soreness in this area is associated with stifle and/or hock soreness but can sometimes be a separate issue. Injecting the Whorlbone (Trochanteric Bursa) is an effective treatment for pain in the area, and horses typically respond well. As with any soreness that can be secondary to other lameness problems, it’s crucial to find out the ‘why’ behind the pain to help long term soundness and longevity.

10/23/2026

The hills we will die on:

1. They work hard for us. They deserve to feel their best.
2. You can’t out train pain.
3. Preventative care in these athletes ensures they stay at 100%.

We’re swapping out pink for red…From Pink Buckle to The Texan!Double X will be at The Texan 14th-17th. Call the clinic a...
10/13/2026

We’re swapping out pink for red…

From Pink Buckle to The Texan!

Double X will be at The Texan 14th-17th. Call the clinic at 940-514-9500 to get on the schedule!

‼REMINDER‼The Double X team is at Pink Buckle in Guthrie Oklahoma right now, we are unable to do Coggins (EIA) papers un...
10/08/2026

‼REMINDER‼

The Double X team is at Pink Buckle in Guthrie Oklahoma right now, we are unable to do Coggins (EIA) papers until they get back.

We also DO NOT have a small animal tech in the clinic the remainder of this week to do vaccines or testing. If you need to schedule an appointment please be aware it will need to be scheduled for when we do!

Thank you, XX

We talk suspensory tears, deep digital flexor tears, strains, holes... etc. But what is another word owners often hear w...
10/07/2026

We talk suspensory tears, deep digital flexor tears, strains, holes... etc. But what is another word owners often hear when dealing with soft tissue injuries in performance horses? Desmitis.

Desmitis simply means inflammation or injury of a ligament. In horses, we commonly hear the term associated with the suspensory ligament, but desmitis can affect other ligaments throughout the body as well.

And this is where some of the terminology can get confusing.

Desmitis, a suspensory tear, and a deep digital flexor tendon tear are not necessarily the same thing. Desmitis describes injury or inflammation within a ligament. A suspensory tear is a more specific description of structural fiber disruption within the suspensory ligament, so a suspensory tear can fall under the broader diagnosis of suspensory desmitis. A deep digital flexor tendon tear, however, involves a tendon, not a ligament. Tendons connect muscle to bone, while ligaments primarily connect bone to bone and stabilize joints. Injuries of the DDFT are therefore described as tendinitis/tendinopathy or tendon tears rather than desmitis.

The common ground? All of these structures are made largely from highly organized collagen fibers, and all are asked to withstand tremendous forces in an equine athlete.

Running, stopping, turning, jumping, accelerating and repeatedly loading the limbs place substantial mechanical stress on tendons and ligaments. These structures are designed to tolerate that load, but repetitive strain can contribute to microscopic collagen damage over time. Research into equine tendon injury has shown that acute tendon injuries are often preceded by microscopic collagen damage. This means the process leading toward a larger injury can begin before there is an obvious tear, swelling or dramatic lameness.

With suspensory injuries, particularly when both limbs are involved, a horse may show more of a performance or change in action than a clear head-bobbing lameness. Suspensory branch injuries can even exist without obvious lameness. Horses may simply feel different to the rider without looking dramatically lame.

So what does desmitis actually look like?

Ultrasound is one of the primary tools veterinarians use to evaluate accessible ligament and tendon injuries because it allows us to evaluate the size, shape, fiber pattern and organization of the structure. A healthy ligament generally has a relatively uniform appearance. When viewed longitudinally, its fibers create an organized, parallel pattern. In cross-section, the structure should have a relatively consistent shape and echogenicity.

With injury, ultrasound may show:

• Enlargement or thickening of the ligament
• Hypoechoic, or darker, areas
• Changes in overall echogenicity or "brightness"
• Disruption or irregularity of the normal fiber pattern
• Changes in the shape or margins of the ligament
• A distinct lesion or area of fiber disruption with more significant injury
• Fibrosis and remodeling associated with chronic injury

Imaging findings have to be interpreted alongside the horse's clinical examination, lameness localization, history and comparison with the opposite limb.

Does desmitis end a performance horse's career?

There is an enormous spectrum between mild ligament injury and catastrophic disruption of the suspensory apparatus. Location, severity, chronicity, which limb is involved, concurrent injuries and rehabilitation all influence prognosis.

For example, veterinary literature reports a very favorable return to function for many horses with acute forelimb proximal suspensory desmitis when appropriate rest and controlled rehabilitation are followed. Hindlimb proximal suspensory desmitis generally carries a more guarded prognosis for return to performance. Suspensory branch injuries can require six months or longer to improve and can recur.

One of the most important parts of managing these injuries is respecting how slowly tendon and ligament tissue heals and remodels, and doing the rehabilitation the right way. It's a marathon. Not a sprint.

10/05/2026

We’re here to listen. To you AND your horses.

We want to hear about the little things you’re noticing, because sometimes those little changes are exactly where we need to start looking. You ride them. You are around them daily. The chances are you feel or notice things long before they're actually visible.

Lameness exams don't always just reveal obvious soreness, sometimes a little insight on the horses day to day behaviors or changes, offer up insight on exactly what to start digging for

We’re here to listen to what you’re telling us and what your horse is telling us, too. ❤️

10/02/2026

Lets test your knowledge (or what your horses have had done 😆)
Name the injection.

Bonus points for why Dr. Lee is utilizing the ultrasound machine, and what the point of the injection is.

There are a million different things you can do for maintenance…A million different injections.A million different thera...
09/30/2026

There are a million different things you can do for maintenance…

A million different injections.
A million different therapies.
A million different supplements.
A million different medications.
And so on…

But nothing replaces a well-placed lameness and physical exam with your veterinarian.

Performance horses are athletes, and soreness doesn’t always show up as an obvious head bob or a horse that is visibly lame.

Sometimes it’s much quieter.

A horse starts dropping a shoulder in a turn. They’re a little slower to engage behind. They suddenly struggle with a lead they’ve never had trouble with. They’re not stopping as hard, leaving as confidently, or clocking quite like themselves. Maybe they’re simply having an “off” day more often than they used to. To the average eye, that horse may look completely sound.

Small changes in comfort can create changes in the way a horse uses their body. When something hurts, they compensate. When compensation continues, other structures can begin carrying loads they weren’t meant to carry.

That’s one of the reasons routine veterinary exams can be so valuable, even when nothing appears to be “wrong.”

Think about it a little like having your farrier out. We don’t necessarily wait until a horse is missing 2 of four shoes, one is hanging with one nail, and they look like their feet may as well be platform shoes... You have a routine. A schedule. When you know they are ready to be done, before they need it because problems are rising.

Performance, and preventative, maintenance works the same way.

Some of our futurity trainers and professional rodeo athletes bring horses in every few months. Others may only need to come in twice a year, and some once a year. Sometimes we see a horse more frequently in the beginning while we learn what their body needs, how they respond to different medications or injections, where they tend to get sore, and what schedule keeps them feeling their best.& ;

The goal isn’t to inject everything, treat everything, or throw every therapy and supplement available at a horse. It's not a "one size fits all." The goal is to find the RIGHT program for that individual horse.

That might involve joint care. It might involve regenerative medicine, shockwave, chiropractic work, rehabilitation, changes in shoeing, conditioning, nutrition, recovery time, or something completely different. And sometimes the answer is simply that the horse looks and feels great and doesn’t need anything beyond continuing to monitor them.& ;

A good maintenance program should evolve with the horse, their workload, their age, their discipline, and what their body is telling us.

Routine exams give us a baseline. They let us learn what is normal for that horse and make it easier to recognize when something starts to change. Maintenance isn't supposed to just be about fixing soreness once it becomes impossible to ignore.

Find your baseline. Make sure you are on top of it to keep them feeling like the winner you want them to be.

Address

136 CR 1793
Sunset, TX
76270

Opening Hours

Monday 8am - 5pm
Tuesday 8am - 5pm
Wednesday 8am - 5pm
Thursday 8am - 5pm
Friday 8am - 5pm

Telephone

+19405149500

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