Dentistry: Don’t Forget the Little Guy!

Equine dentistry can be one of the most challenging and rewarding aspects of veterinary medicine.  These days many veterinarians have special training in dentistry and several have devoted their practice exclusively to the subject.  As an associate at McKee-Pownall Equine Services I perform a variety of services on a daily basis but dentistry has always been area of special interest to me.  You never know what you are going to find when you look into a horse’s mouth…and it’s a great upper body workout!

All horses, large and small, benefit from regular dental care.  Their adult teeth erupt continuously over their lifetime and are ground down through the action of chewing.  Due to the conformation of their jaws they form sharp enamel points on the cheek side of the upper cheek teeth and the tongue side of the lower cheek teeth.  Left as is, these sharp points can cut into the cheeks and tongue causing painful sores that bother the horse when it is chewing or wearing a bridle.  Sharp enamel points are a normal finding that must be maintained in all horses.  In addition to that, many horses have actual dental problems and can suffer much more serious consequences without dental care.  Every horse, no matter the size, should have a full dental exam once a year.  A proper exam includes sedation and a full mouth speculum.  The speculum allows the veterinarian to visualize the entire mouth, feel problem areas and use mirrors or other tools to complete a thorough exam.  The sedation ensures that the horse is cooperative, relaxes their jaw for speculum placement and helps alleviate fear and nervousness.

With my interest and experience in the Miniature Horse industry I am surprised at how few of them I see for dental care.  Miniature Horses present a number of challenges to the dental practitioner with their cramped working space and special set of problems.  Though often overlooked, Minis usually have a greater need for good oral care than their large counterparts.  Efforts by breeders to produce horses with smaller, more refined heads has led to disproportionately large teeth compared to skull size.  For this reason Minis are prone to tooth overcrowding which predisposes them to problems with occlusion and eruption.  Tooth root abscesses, eruption bumps, tooth impactions and sinusitis are all more common in Miniatures.  Early diagnosis of these problems can prevent serious and permanent damage.  Also, in a breed where parrot and monkey mouths are a problem it is important to check the whole mouth frequently in youngsters.  In some cases cheek teeth malocclusions can create a false “off bite”.

All horses deserve a healthy, comfortable mouth.  For most, this means a thorough dental exam and float once a year.  For horses with problems your vet may have to see them more often.   When it comes to equine dentistry it is much easier to prevent a problem than correct one.  Whether your Mini is a competition horse or a backyard pet, dental care needs to be part of their annual maintenance.  Diligence now can prevent a lot of discomfort, expense and heartache long term.

Michelle Courtemanche DVM

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Acupuncture for a Sick Horse

Typically, I would not choose acupuncture for a sick horse as my first line of defense.  We have excellent drugs, like antibiotics and anti-inflammatories that have been known to save lives. During a course lecture for “Evidence Based Acupuncture” I am attending, research papers talking about the use of electro-acupuncture in respiratory disease were discussed.  Various studies noted that stimulation of certain points caused increased clearance of mucus in the trachea (windpipe), reduction in inflammatory cells, and increase in circulating infection-fighting cells (neutrophils).  When I was called in recently to use acupuncture as an adjunctive therapy on an ill patient, I was pleased to be able to put this information to use!

My patient was on antibiotics for a lung infection (pneumonia), and one of the required medications tasted particularly bad.  The poor thing didn’t want to eat (as many horses on this medication don’t).  Of course he had to stay on this excellent drug to help him get better, so we were in a catch 22-position. While he did not have a fever, he was quite dull and almost looked sleepy upon pulling him from his stall.  We worked the points noted in the papers, as well as a couple for appetite stimulation.  Afterwards, our boy was pretty relaxed, partly due to feeling poorly, in addition to the sedative effects of acupuncture.  However, later that day, he began to feel better and started eating again.  His attitude improved and he is on his way to a recovery.  I obviously can’t and won’t take credit for healing the pneumonia; antibiotics were of course the right therapy to use! I think this is a perfect example of marrying Western and Eastern medicine to achieve a positive outcome for our patient.

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The Basics

Equine dentistry can be one of the most challenging and rewarding aspects of veterinary medicine.  These days many veterinarians have special training in dentistry and several have devoted their practice exclusively to the subject.  As an associate at McKee-Pownall Equine Services I perform a variety of services on a daily basis but dentistry has always been area of special interest to me.  You never know what you are going to find when you look into a horse’s mouth…and it’s a great upper body workout!

All horses regardless of their age, size and use benefit from regular dental care.  They have a set length of reserve tooth crown in their jaw.  The adult teeth erupt continuously over their lifetime and are ground down through the action of chewing.  Due to the conformation of their jaws (upper is wider than lower) they form sharp enamel points on the cheek side of the upper cheek teeth and the tongue side of the lower cheek teeth.  These are the areas of the dental arcade that never contact the opposing arcade during the chewing stroke and therefore don’t get ground down naturally.  Left as is, these sharp points can cut into the cheeks and tongue causing painful sores that bother the horse when it is chewing or wearing a bridle.  Sharp enamel points are a normal finding that must be maintained in all horses.  Basically, in the routine mouth we go in and grind off the part of the tooth that the horse can’t take off himself.  However, in addition to sharp enamel points many horses have actual dental pathologies and can suffer much more serious consequences without dental care.  I will go into some of the most common problems in this blog.  In order to remove the sharp points and identify additional problems every horse should have a full dental exam once a year.  A proper exam includes sedation and a full mouth speculum.  The speculum holds the horse’s mouth open and allows the veterinarian to visualize the entire mouth, feel problem areas and use mirrors or other tools to complete a thorough exam.  The sedation ensures that the horse is cooperative, relaxes their jaw for speculum placement and helps alleviate any fear or nervousness.  It also increases the safety for the horse, handler and veterinarian.

Dental prophylaxis is aimed at removing the normal sharp points and dealing with any additional problems that prevent the jaw from functioning properly.  Malocclusions are conditions that cause abnormal contact between opposing teeth.  They can cause problems for the horse by restricting normal jaw motion or by applying abnormal forces on the individual teeth.  Horses chew their food in a side-to-side (lateral) grinding motion.  In addition when they raise and lower their head the jaws move in a front to back (rostrocaudal) motion.  The incisors meet optimally when the head is down in the grazing position.  Any malocclusion that prevents either of these motions can cause discomfort for the horse, reduce grazing and chewing efficiency, and restrict their ability to carry a frame under saddle.  When abnormal forces are applied to individual teeth periodontal pockets can form or weakened teeth can fracture.  The pockets form at the gum line, are very painful and can become quite deep when feed packs into them.  Left untreated they can lead to deep infections and abscesses.  In severe cases the tooth can be compromised enough to require extraction.  Fractured teeth are also painful, open the root up to infection and require extraction.

Some of the most common malocclusions are hooks, steps, waves and excessive transverse ridges.

Hooks occur most commonly on the front edge of the first upper cheek teeth and/or the back edge of the last lower cheek teeth.  They look like the tooth has grown too long  (when actually as we have learned they just haven’t been ground down).  As they get bigger they block the rostrocaudal motion effectively “locking” the jaw as the horse raises and lowers its head.

Steps can occur on any tooth.  The entire tooth is not ground down and is therefore extra long.  This usually happens when the opposite tooth is missing and will block jaw mobility when the step fits into the gap on the opposite arcade.

Waves can affect the entire dental arcade and have low and high spots that usually mirror the opposite arcade.  They can restrict motion and apply abnormal forces on individual teeth.

Transverse ridges are part of the normal anatomy of the grinding surface and increase chewing efficiency and surface area.  Excessive transverse ridges can occur on one or several teeth and look like an exaggerated washboard on the normal occlusal surface.  Think of 2 washboards locking together and you can imagine the effect these have on that rostrocaudal motion.

This was an overview of the basics of equine dentistry.  Overall it is a complex and extensive topic.  Going forward I will cover specific topics in greater detail and discuss some of the interesting cases we see in our practice.  If there is a dentistry topic that you would like to know more about please let us know and I will do my best to put something together.  My next blog will discuss the special dentistry needs of the Miniature Horse.

Dr. Michelle Courtemanche

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Safety First

As many of you probably know, there was an explosion involving a hyperbaric oxygen chamber at an equine rehabilitation facility.  The explosion resulted in one horse and person being killed and a second person being seriously injured.  The details of the accident are not yet known, but my heart sank upon hearing this news.  I feel for the family and loved ones of the woman who died, the people associated with the horse, and the injured woman who has plenty of physical and emotional healing ahead of her.  There are surely many people mourning these losses and I wish them all strength.

We all know that accidents happen and despite having the best intentions, safety precautions, training and education, there is only so much we can control.  That being said, this tragedy served as a reminder of the importance of being safe when working with horses.

There have been times in my life when I had a gut feeling about something.  I felt – even knew – that an element of the situation was amiss.  But sometimes I would push on, which usually didn’t turn out well.  Let me give you an example.

During my childhood summers, two of my favourite things to do were spend time at the barn and go swimming.  On a family vacation one summer, my parents pulled the car into a hotel where we would be spending the night, and to my delight there was a swimming pool.  I was very excited, but I was also really, really tired.  After we settled into the hotel, my parents suggested that I take some time to rest before going swimming, but they left the final decision up to me.  I was torn, I didn’t know what to do: rest or swim.  I decided to make a mature decision (I was in the double digits after all) and listened to my body.  I stayed back at the hotel to rest and have a nap.  Surely the opportunity to go swimming would be there when I woke up, it was only just mid afternoon.

But, as I lay on the bed trying to will myself to sleep, the desire to go swimming got the best of me.  I got up, changed into my swim suit and headed to the pool.  To my delight, we had the pool to ourselves and there was even a slide.  I walked briskly (no running on the pool deck allowed) to the slide, climbed up the stair case, sat down at the top and gave myself a great big push.  I misjudged how much push I needed.   I ended up flying right off the side of the slide, landing hard on the pool deck, and then fell into the deep end of the pool.

I was crying and gasping for air.  My entire back was scratched and raw, in a way that only cement can do.   And then the pain kicked in.   In no time at all my parents ran over and pulled me from the water.  They carried me back to the hotel room and consoled me.   This time I lay on the bed stomach down.

My parents were sure to remind me that perhaps I was too tired to be swimming.  In fact, I didn’t get to go swimming for the rest of the vacation.

The lesson learned for me was to listen to myself, my body, my gut, and my parents.  If something doesn’t feel right, I take a moment to stop, think about what’s going on and then decide what needs to be done.  Sometimes the answer is to just call it a day and quit while I’m ahead.

Horses are large animals with the ability to make their own decisions, and sometimes they can be unpredictable.  The result of a poor decision can be costly.  We can (and do) have numerous safety measures, training initiatives, protocols and skilled individuals at MPES, but the risks associated with this job are undeniable.  Safety is paramount.

Let this be a lesson to us all, a reminder to impress upon ourselves and the people around us that safety is of utmost importance and should not be compromised.

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The Joys of Treating an Older Horse

As the owner of several geriatric horses, I know first hand how endearing owning an “oldie” can really be.  A swayed back, a droopy lip, a greyed face, a missing eye are charming qualities that become all the more sweet when you have shared many years together.   I recently attended a webinar given by Dr. Sarah Ralston, nutritionist, who spoke about nutrition for the older horse.  Twenty years ago, no feed company offered a diet for older horses, believing that no one cared about feeding and maintaining the elder equine. Purina was one of the first to offer a “Senior” diet, with the guidance of Dr. Ralston.  Now, senior diets are amongst the top sellers at any feed outlet, and geriatric medicine is a big part of equine veterinary practice in North America.

Talking about the elderly equine got me thinking about how we care for our old companions, and what else could be done for them.  There is no doubt that our older friends have more problems than their younger counterparts.   Early intervention of issues with proper nutrition, dentistry, good husbandry and pain reduction are the keys in my mind to ensuring that as long as they are happy to be munching on hay, they can.   With old horses, little changes can go a long way.  I always find it satisfying to float a set of teeth on an older patient and later hear that they have gained 100 lbs before going into winter!

I am always up for a challenge, especially when approached with the challenge by a fellow colleague.  Dr. Caldwell, from our Niagara practice, approached me about using acupuncture as a non-invasive method for helping an older patient.  This old fellow was 33 years old and had some issues with mobility, keeping weight, as well as some neurological issues.  Upon meeting this bright-eyed gelding, and his kind, dedicated, owners, I was inspired.  We began using acupuncture with the goals of improving mobility, energy and reducing his neurological signs.  My goal was not to make my patient into a young foal again, but to improve his quality of life and make his remaining years as happy as possible.

In an older patient, I use fewer needles, and minimal electro-acupuncture so as not to overwhelm the system.  Our patient had some aches and pains in his hind end and neck, so we worked on those points, also choosing some energy boosting and appetite boosting points.  Being an easy-going guy, he really enjoyed his treatment.   After the first treatment, he was more energetic and more mobile. After another 3 treatments with good responses, we plan on reducing the treatment regime with the idea that “tune-ups” may become less frequent.  We achieved some good improvement from the first few treatments, and I am excited to see how things come along in the next few months.

Acupuncture, as with all aspects of geriatric medicine, is a balance of working on main problems, and helping as much as we can.  Given the level of change in attitudes and therapies for older horses in the past 20 years, it will be interesting to see what happens next.  Do you have any ideas?

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A Day Answering the Phones at MPES

My present role at MPES is as Head Technician.  This means that I spend a great deal of time in the clinic at a computer working on administrative duties, training initiatives, daily organizing and troubleshooting.  Occasionally, I head out on the road with the vets to do appointments and there are always the MRI appointments to give me some hands on horse time.  One thing that I am not often called upon to do is field phone calls.

To give you some background information, when the phone rings at our house, 90% of the time the call is for my husband (he’s a real social guy), 8% of the time it’s someone trying to sell us something, and about 2% of the time the call might be for me.  My preference is to communicate in person and over the years people have come to learn this.  Hence the lack of calls (I think).   For anyone that knows me, this should not be a huge surprise, especially when you think of how many times we have chatted on the phone J.

Well, this past week our customer service representatives were having a training day.  They were all away from their desks learning how to improve upon their skills, sharing their ideas and experiences and by the sounds of the laughter heard coming from our conference room, they were having a great time too.  So if they are all away from the phones, guess who had to answer them?  Now, I was not alone in this adventure.  I had my trusty co-worker Stacey alongside.  Together we answered all the calls coming into the Campbellville office.  And over in Newmarket, Nicole was doing the same thing.

The culture at MPES is one that encourages team work; the attitude “it’s not my job” doesn’t fly.  We are a close group that supports each other and are encouraged to be courageous and step out of our comfort zones.  There is much to be gained from spending a day in someone else’s shoes and broadening your own skill set.  I can honestly say that I enjoyed my day on the phones.  I learned a lot more about the challenges our customer service representatives face on a daily basis.  “Cross-training” in this way is refreshing and eye opening.  In turn, it helps make me better at what I do.

So yes, I will answer the phones again.  When all three lines are ringing and I know there are only 2 other people on the property, I take a deep breath and pick up the receiver.

 

 

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Secondary Back Discomfort

At our practice, we regularly get together as veterinarians to share educational information.  Sometimes we have a wet-lab, where we can tryout new xray views or learn landmarks for unusual diagnostics etc (Don’t be concerned; no horses are harmed, just palpated!!)  Other times we discuss recent conference information and how we can apply the information to our patients.  At a recent vet meeting at MPES, we discussed applications and cases in which acupuncture has been useful.  Upon reflection, I have been very happy with my results with acupuncture for secondary back and neck discomfort this year.  As I learn more about acupuncture and improve my practice of acupuncture, I am interested and impressed by the results.

Many horses I see will experience some discomfort from arthritis or inflammation within the joints.  Secondarily, they experience compensatory back discomfort.  I liken this to having a sore knee or hip.  While avoiding moving the sore joint, we hold the back in tension, leading to a sore back at the end of a long day.  There is soreness within the back or neck, but no primary arthritis or issue.  Is this back pain the primary or root problem?  Of course not, but it sure hurts!

As all veterinarians do, I deal with primary problems first, perhaps treating a sore hock or fetlock.  For the most part, this should alleviate the discomfort and make our equine friend more happy and comfortable in his job.  However, I try not to ignore the secondary soreness areas, as they have been inflamed for almost as long as the primary issue (as long as the horse has been compensating!) so the pain from those areas can be profound.  When evaluating these secondary spots, I have to decide if they will alleviate themselves within a week or two or if they require some help.  If they need help, what kind of help do they need?  People do often ask, “Will this problem resolve with a joint injection?” From a mathematical perspective, a + b =c.  Unfortunately, as anyone with a sore back knows, the answer is “it depends, but I hope so!”  It depends on the horse’s lifestyle (job, turnout, nutrition), conformation, ability to withstand pain (!), workload etc.

At the vet meeting, I discussed the work I did in a barn where several horses had sore backs and one a sore neck.  On lameness evaluation, one had stifle inflammation, one had hock arthritis, and another sore feet with abnormal changes in the coffin joints.  The back and neck pain I palpated was pretty noticeable, and two of the horses were no longer enjoying being brushed anymore. Once inflammation and pain conduction gets started, the cycle can be hard to break, so sometimes we need to inject these sore areas with steroids, or perform mesotherapy, even though the “primary” pain is gone.  I am a big advocate of treating secondary issues when they need to be treated, so our athletes/companions can be as pain-free in their jobs as possible. I treated the affected joints/regions in all 3 horses (stifles, hocks and coffin joints) and added in electro-acupuncture of the secondary areas while the horse was sedated.  If the single acupuncture treatment and joint injections did not deal with the secondary discomfort adequately, we would come back and re-evaluate to see if other therapies would be needed. I have a good idea of how much improvement we should see after 1 treatment of acupuncture, so if there is still a terribly inflamed back a week later, I know that the secondary inflammation is really profound enough to warrant more treatments (of acupuncture, mesotherapy, injections etc).

Happily, all 3 of these horses were able to show the following week and almost immediately went back to enjoying their brushing, and on recheck, looked great!  Admittedly this is not a scientific study, but based on previous experiences where joints where injected and acupuncture was not performed, using acupuncture at the time of injection seemed to reduce secondary inflammation and allow the horse to continue on with his athletic life sooner than if we hadn’t elected to use acupuncture.

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Technician Continuing Education (NEAEP AAEVT Excellence Symposium & AAEP AAEVT Annual Conference)

Continuing education at MPES is very important for all staff.   By pursuing these opportunities, we are able to offer high end services and skills to our clients and patients.  Personally, I really enjoy going to conferences.  I find them informative, in that I am able to see what other technicians are doing, and I enjoy both sharing and receiving new tips and tricks of the trade.  It is also helpful to know that equine technicians everywhere struggle with the kinds of challenges I face.  It is both helpful and encouraging to listen to talks and be able to say “Yes, that happens to me and that is what I do.”  When my practices are consistent with what people are promoting at educational conferences, I know I am offering the best care with the most updated information and techniques out there.  When they are not, I learn something new that might improve my clinical skills.  This is information that I would otherwise not have if I did not attend conferences.

One of the conferences I attended this past fall was the Northeastern Association of Equine Practitioners (NEAEP) American Association of Equine Veterinary Technicians (AAEVT) Excellence symposium (Boy, that’s a mouthful!) in Norfolk, Virginia.   In addition to the roundtable discussion on practice management, of which I had the honour of being a panelist, the agenda included some great topics: neurological examination, regenerative therapies, anesthesia and sedation during dystocia, caring for the sick foal, lameness, cardiac disease and wound management.  We also spent a day at a local equine clinic learning and applying the practical skills involved with field anesthesia, cardiac ultrasound and dental radiology.  I definitely returned to Ontario with some new knowledge and confidence in my skills as a technician.

About a month or so after returning from Norfolk, I was back on a plane, this time heading to San Antonio, Texas for the annual American Association of Equine Practitioners (AAEP) conference.  If you talk to an equine veterinarian or aspiring equine veterinarian in North America, they will boast about how expansive and in depth this conference can be.  Attending is an annual tradition for some, and with so many great minds present, I can see why.  The educational opportunities don’t stop there either.  The massive trade fair and numerous social and networking opportunities offered can inspire one to continue to grow and learn within our chosen professions.  The AAEVT holds a technician specific educational stream and Dr. Pownall and I were among some excellent speakers.  We presented our ideas on the use of social media in equine practice with a focus on the technician’s role in this type of initiative.

One of my favourite high lights of this conference was a presentation made by the Veterinary Emergency Response Team.  This group of dedicated individuals from Texas A&M University responds to disasters and helps manage the affected animals.  This initiative was established after Hurricanes Katrina and Rita, when people refused to leave their homes if they were unable to take their pets with them.  Obviously this is a situation that can be dangerous for all involved.  Hearing the success stories of recent wild fire rescues, reconnecting pets and people, and seeing the passion for this project within each rescuer brought tears to my eye.  One portion of their presentation was an interactive mock rescue simulation.   As participants we were asked to make life and death decisions for a number of cases in a matter of seconds, not an easy job or one to be taken lightly.  This program has been so successful that it has been incorporated into the 3rd year veterinary medicine program as an elective course.  Students can gain invaluable experience working with this one of a kind team.  To learn more about the Veterinary Emergency Team you can visit their website www.vetmed.tamu.edu/vet/about and I promise you will be inspired.

Since attending this conference I have been able to pass on this knowledge to the rest of the technicians and assistants at MPES and am looking forward to the next one!

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American Association of Equine Practitioners Convention 2011

As you know, Mike, Michelle, Maggie, Elise, and myself all traveled to the American Association of Equine Practitioners convention in San Antonio Texas over the last week. Elise and I headed down together on Friday, and a customs guy asked if we were sisters! Well, I HAD brushed my hair that day for a change so I suppose we both looked stylish and put together. I guess I was the “bossy” sister and Elise was the nice one J We made the trip down without further ado and hit the ground running. Mike had arrived a day earlier because not only did he have extensive presentations to prepare, he was also promoting both Digital Pulse and Equine Best Practices to potential clients. He was so busy that I only forced him out of bed at 5am to go to the gym with me once all week. And they say I’m not nice!

Mike’s presentations on podiatry and social media were really terrific and several people came up to pay him compliments on a daily basis. Elise had been preparing all week for her co-presentation with Mike for the RVT’s and it also went very well. I too was asked to speak, on “Lameness in the Racehorse” for an audience of racetrack practitioners. Although I was a bit intimidated about going up to speak in front a roomful of seasoned track practitioners, it went terrifically well and I really hope they ask me back next year. Michelle and Maggie were attending lectures every day too, and the program was so diverse that at any given time each vet could be in a different talk. Between the five of us we are bringing home lots of exciting new information and techniques! We all spent a good deal of time in the trade show talking to reps about new equipment and medications that may be useful in our practice. I know that some reference books and dental equipment will be on their way home soon.

So Mike, Elise and I finally arrived home Wednesday afternoon. Yes, that is 24 hours later than we were supposed to land, but thanks to an airplane engine light, the three of us were able to sample the delights of the San Antonio terminal for about nine hours and then explore the charming motel accommodations near the Detroit airport while we awaited our missed connection.  Within a couple of hours of hitting tarmac in Toronto, Mike and Elise had to hop in the car and drive to Sudbury to do a  couple of  big days of dentals and lameness exams that were scheduled before our travel plans went pear-shaped. I’m sure they were mutually relieved to have a shower and change of clothes before the long car ride J Hats off to a couple of troopers!

The AAEP conference is informative, inspiring, and a major confidence booster. One thing I notice every year is that, as a practice, MPES maintains a very high standard in everything we do, and we comparable favourably to the best practices worldwide. Other top vets are handling medical and lameness issues the same way we are, struggle with the same questions we do, and have the same case outcomes that we have. I think that on the whole we should all be very proud of our individual contributions and team spirit, because that is what makes MPES so great.

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Fairfield Equine

As an MRI continuing education initiative I spent a couple of days at a clinic that is well known to me and the rest of the equine world: the beautiful facility of Fairfield Equine in Newton, Connecticut.  Fairfield offers complete hospital and ambulatory services including an on site laboratory, surgical suite for both emergency and elective surgeries, lameness diagnostics and lameness therapies.  They have hospitalized care for medical cases including an isolation barn.  The facilities are impeccable, the staff is caring and contentious and I quickly saw examples of why they have such a glowing reputation.

As I was there for MRI training, we needed a horse to work with.  Arrangements had been made for one of the office staff members to bring in her handsome gelding as my patient.  When the trailer turned down the driveway a group of five people went out to welcome him; turns out that this old guy (he is in his mid 20’s and looks fantastic) is their horse of choice for staff training.  (They’ve even have brought him into a hotel conference room for training!)

Traci, my mentor, took me step-by-step through their procedure for admitting day patients.  At Fairfield, preparing patients for the MRI includes removing their front shoes and administering sedation, much like we do at MPES.  Once we had him situated comfortably in the MRI room, myself, Traci, and Becky (another imaging technician with tremendous anaesthesia and radiography skills) got down to business.  Our goal for the morning was to go over fetlock MR imaging and trouble shooting.

The two most critical elements for a successful scan are maintaining a uniform level of light sedation and correct positioning.  In spite of his hotel room experience, our patient presented us with some challenges in these areas.  When it came to sedation, he was a bit of a light weight; a tiny dose and that was all she wrote.  However, and unfortunately, he would snap out of his sedation very quickly and without much warning.  Secondly, he was not interested in standing with his weight evenly distributed on all four legs.  For some procedures this would not be a problem.  But to achieve diagnostic quality MR images, it is paramount that the horse not move.  Now, it is possible to alleviate movement by adjusting the sedation, which Becky was dutifully managing.  However, in this case, the level of sedation did not appear to be the problem.  Rather, this horse was simply uncomfortable having the magnet touch his leg.  Turns out it tickles him.  So we wrapped his leg in a polo bandage so he could no longer feel the magnet and, bingo, problem solved.  For me, this was an excellent learning experience.  It reminded me that every horse is different, and that solutions come in all different shapes and sizes.  All in all, the imaging portion of our morning was very informative and I came home with some great information about scanning protocol and image acquisition.

The following day a patient was admitted for a single hoof scan.  For me, this was familiar: at MPES, 98% of the images I take are of feet.  During the scan, we were able to visualize what we believed to be the cause of his lameness.  We followed the MRI by taking radiographs of the specific area in question.  The radiographs did in fact support our suspicions and a treatment plan was developed for this horse based on these findings.

Armed with my notes, a lot of reading to do, and with Traci and Becky as resources, I left Fairfield feeling motivated to continue improving my MR scans.

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