Some lame horses have simple problems to both diagnose and
treat, however many lame horses have quite complex problems that involve special
diagnostic and imaging techniques. It is for that reason that many veterinarians
send their difficult cases in to our hospital for diagnosis and treatment.
Quite
often we have to isolate the site or cause of a lameness by selectively
anaesthetising specific areas or joints (nerve or joint blocks). After the point of origin has been
identified then X-rays, ultrasonography or other imaging techniques are used to
best determine how to treat the problem.

The
demands of identifying specific conditions in a wide range of breeds has lead us
to develop a variety of techniques and conditions to examine lame horses.
We
have a specific lameness track with a hard, smooth surface, that horses can be
trotted on. We have a
high-speed treadmill that any horses action can be examined on, or even
videotaped, for later analysis and a 800 metre training track so horses can be
ridden at various speeds or Standardbreds can be driven on.
No
dedicated lameness facility would be complete without involvement of expert
farrier attention. Our farrier is integral to our team approach.
We have a forge
and room devoted to the manufacture of shoes and shoeing of horses with problems
such as founder (laminitis) or navicular disease.
One of the goals of our veterinary attention is to return the horse to work as
soon as safely possible after the problem has been corrected. Attention to
proper therapeutic shoeing reduces this time.
New
Equipment:
Digital Radiography has been a huge boost to our diagnostic and
efficiency in obtaining quality images. It involves using a plate with a lead
attached. The lead sends information from the screen to a comp
uter that sorts it
all out. The equipment is very fast and clients and our veterinarians can see
the images in a second or two after taking it. Commonly the images is then sent
to another computer that has superior resolution for us to look at. We really
like this equipment, although it has one drawback which is the plate and lead
are quite vulnerable. They cost more than an expensive car so we like to
tranquilise the patients before starting to X ray them. The system we use is
manufactured in the USA by Eklin.
Scintigraphy is often
referred to as bone scanning or nuclear medicine.
A
radioactive isotope (technetium 99m) is injected into the horses vein and then
at a specified time period (less for soft tissue ~ 10 min and more for bone ~ 3
hours) the horse is placed in a room with a gamma counter head that detects
radiation emitted from the uptake of the radioactive substance. This is
presented as an image with a broad outline of the structure being examined and a
area of suspicion (hot spot) where the isotope is being concentrated. The
isotope concentrates in areas of active bone remodelling. It is very useful
for problems that are not immediately identifiable with nerve blocks.