Anatomy Physiology

News, Articles, Videos and other content about Anatomy Physiology

Consider SDFT Attachment Problems in Lame Horses

Many veterinarians agree that 90% of equine lamenesses originate in the foot. But if it’s not in the foot, there are many other areas where lameness can hide. One area practitioners should examine if a horse is hind-limb lame is where the superficial digital flexor tendon (SDFT) attaches to the hock, suggests Sue Dyson, MA, Vet MB, PhD, DEO, FRCVS, ...

Superficial Digital Flexor Tendon Rupture in Older Horses

Older horses can be at risk of sustaining an uncommon injury: acute rupture of the proximal (upper) superficial digital flexor tendon (SDFT) where the cannon bone meets the carpus (knee). This is because as horses age, the SDFT stiffens and becomes less elastic, decreasing its resistance to cyclic loading to the point that it can potentially tear.

Measuring Horses' Skin Temperature Changes Underwater

Water treadmill workouts are gaining in popularity, especially for rehabilitating injuries. Compared with swimming pool exercises, water treadmill therapy allows the horse to maintain correct posture and gives a handler the ability to control the speed, incline, water height, and resistance of the workout.

Subjective vs. Objective Lameness Identification Methods

Lameness evaluations can be extremely subjective. When examining a horse with a mild lameness, in particular, veterinarians often don’t agree on a diagnosis—some are prone to seeing a more sound horse, others a more lame one. To overcome such disparities, practitioners have turned to objective methods such as force plates and inertial sensor s...

Surgical vs. Medical Cecal Impaction Management

When your horse starts displaying signs of colic—decreased manure production, a lack of appetite, or pain—your first call should be to your veterinarian. While some mild colics can pass without much trouble, other types must be diagnosed and treated quickly—medically or surgically—to improve the horse's likelihood of survival. ...

Researchers Examine Fatal Lumbar Vertebral Fractures

When it comes to catastrophic injuries in racehorses, most people immediately think of severe limb fractures. But these athletes sometimes suffer life-threatening fractures beyond the limbs. Lumbar vertebral fractures, for instance, can occur in the loin area near where the rear of the saddle sits.

Carbohydrate Composition and Equine Digestion

Carbohydrates, including starches, sugars, and fiber, provide horses with the energy they need to meet their daily requirements. But what type of carbs should you be feeding? High-starch diets, for instance, can increase the risk of metabolic disease, while high-fiber diets might better support horses' nutritional health.

Clenbuterol's Impact on Horses' Body Fat Percentage

With any medication comes a risk of side effects. For instance, long-term phenylbutazone administration to treat a musculoskeletal issue can result in gastrointestinal problems; pergolide to treat Cushing's disease can cause a decreased appetite; and vaccine administration to protect against disease can cause injection site swelling and muscle sorenes...

Researchers Study the Genetics of Heaves

Recurrent airway obstruction (RAO, also called heaves) appears to have a genetic basis, but that genetic basis isn’t the same in all horses, Swiss researchers say. While the clinical signs can be the same, the disease's underlying genetic mechanisms can vary from one horse family to another.

Diagnosing Unusual Hock Lameness

With six bones articulating in close range and multiple tendons and ligaments controlling extension and flexion, the hock, or the horse equivalent of the human ankle, has many moving and shock-absorbing parts. Add to those the animal’s weight and the fact the joint is almost always in flexion, and you’ve got a recipe for a perplexing number of...

Understanding Immunosenescence in Horses

With more horses living to a ripe old age than in the past, veterinarians have become incredibly well-versed in managing senior equids. But there are still some points that researchers are working to understand. For instance, exactly what impact does aging have on the immune system?

High-Speed Exercise and Bone Response

Bone was once considered an inert material with its structure defined by genetics. But it turns out there’s a lot more at work, explained Larry Bramlage, DVM, MS, Dipl. ACVS: “Selective breeding dictates the initial skeleton, but adaptive training in response to exercise modifies it further.” He and other racehorse surgeons are striving ...

Equine Muscle Matters Reviewed

Most horse owners appreciate the sight of a well-muscled horse, along with the time and effort riders or trainers must commit to helping that animal fill out. But chances are, fewer owners consider the factors within a horse's body that allow him to build—or lose—muscle mass.

Equine Gastrointestinal Health Reviewed

All horses'—from young to old, high-performance to sedentary, rescued to syndicated, and everywhere in between—gastrointestinal (GI) tracts function in the same manner. And owners of all types of horses should take the same steps to help keep their animals' GI systems functioning optimally.

Subfertile Mares Need Conscientious Monitoring (AAEP 2012)

Many reproductive losses occur in the very early stages of pregnancy, but veterinarians emphasize that losses late in gestation can happen as well. A Louisiana State University (LSU) reproduction specialist recently described how practitioners can monitor pregnant mares to minimize such losses, particularly those mares difficult to get in foal in the firs...

Biomechanics and Hoof Problems, Treatment (AAEP 2012)

Lameness caused by foot problems is common in the horse, and it can significantly impact how well a horse can perform. Hoof bruising, heel soreness, hoof cracks all create discomfort that alter a horse’s gait and prevent him from giving his utmost to an athletic task. Nearly all equine foot diseases have their root in biomechanics, noted a Universit...

Top Medicine Studies of 2012 (AAEP 2012)

Each year equine veterinarians attending the American Association of Equine Practitioners (AAEP) Convention flock by the thousands to one of the meeting's headline events: the Kester News Hour. Stephen Reed, DVM, Dipl. ACVIM, of Rood & Riddle Equine Hospital in Lexington, Ky., presented a summary of many recent practical and applicable equine medi...

Most Popular Stories