Leg Problems in Dogs
Temperature differences between two limbs
Weak pasterns
in German Shepherd pup
Narrowing
of stance at hocks in young Lab
also see Orthopedic problems
also see Panoteitis
Please note: The most recent medical information is at
the top of the page to least current at the bottom.
Temperature differences between two limbs
Question: Dr. Richards,
It has come to my attention that my 14 year old Lab seems to have a
temperature difference in her front paws. While the left one seems to
be normal temperature the right one seems to be cold to the touch. Is
this significant of anything?
Thanks,
Laurie
Answer: Laurie-
Differences in temperature between two limbs, when one limb seems cold,
are usually caused by circulatory problems. This is more commonly a
problem in cats, who are prone to having thrombi (blood clots) from
cardiomyopathy, which can lodge in one limb only. It is conceivable
that there could be a problem in an older dog due to heart disease,
Cushing's disease, cancer or diabetes interfering with circulation.
Differences in temperature between two limbs, when one limb seems hot,
are most commonly due to inflammation or infection. Inflammation can
occur due to injuries, allergic reactions, skin cancers (mast cell
tumors can do this) and sometimes self-trauma. Infections usually
become obvious at some point but can be difficult to detect early on.
With both inflammation and infections there is often swelling of the
affected area.
If this difference is obvious and continues to be obvious it would
probably be best to ask your vet to examine your dog to determine if
any of the above problems, or some other problem, is causing the
temperature difference. If there is no lameness, no other disease
symptoms and no obvious inflammation or infection this is probably a
minor problem but there is no reason not to be cautious and have it
checked out.
Mike Richards, DVM
12/10/02
Weak
pasterns in German Shepherd pup
Question: Dear Dr Richards - My 6 month old German shepherd male,
Tashi, has weak
pasterns. These are moderate in degree, not extyensive; he does not
walk
on his ankles, nor is he "hare-footed" - yet. I can send a photo by
e-mail
if that would help.
I've been told by the breeder and by one veterinarian that this is not
a
significant problem, and that it will self-correct some time within
the
first two years of life.
Tashi is slender, and we keep him that way. His frame is a bit large
for
his age, and at 6 months' age he weighs 58 lbs. His food is 1.5 cups
of
Diamond premium adult dog food twice daily. Usually, but not always,
he
eats it all. His only dietary supplement is about 1.5 tablespoon of
vanilla yogurt with his food twice daily.
Tashi comes from American show lines, but he will not be a show dog.
He is
currently in the early stages of getting his CGC and (I hope and expect)
on his way toward a CD. He will also do some "no impact" agility, just
for
his fun.
He also has a clinical diagnosis of panosteitis, only because of migratory
soreness in one front leg or the other. There has been no long bone
tenderness or joint tenderness, and radiographs have not been done
of
either the long bones or the pasterns.
I know that this problem is seen in most large breeds of dogs, and that
German shepherds are particularly prone (no pun intended) to it. However,
the only other gsd's I've had close acquaintance with have not had
the problem.
Questions (1) can you tell me just how likely it is that the problem
will
resolve - certain, very likely, 50-50, or unlikely?
(2) are there any supplements or other treatments which
are **proven** to be of help?
(3) how much exercise is permissible with this problem?
We've been told to be sure he gets plenty of exercise, that he
should
never run, that he must never jump, and that it doesn't make
much
difference. (from the practical point of view, it's virtually
impossible
to keep him from running unless I confine him to the house and
never let
him outside unless he's leashed. Otherwise, he gets plenty of
walking
exercise, and enough running around with his "little sister"
who is a
golden retriever.)
(4) perhaps as much for the panosteitis as for the
pasterns - is there any harm in giving him an occasional Bufferin
or
carprofen (Rimadyl) on days when he's especially sore, assuming
I don't
let him increase his exercise just because pain is masked my
the med?
It would be very helpful to me if you can reply to the e-mail address
above, though I will be sure to check the Vetinfo web site as well.
Thanks for your help - Bill
Answer: Bill-
I have tried to find information for you but there isn't a lot
of it in my textbooks and in
speaking with other veterinarians about this in the past, the suggestions
have tended to run towards what you are doing.
Prior to the introduction of the large breed puppy foods, the
recommendations tended to run towards using an adult dog food. There
is
sometimes a problem with increased intake of calcium taking this approach,
though. So currently, the recommendations seem to be running towards
using
one of the large breed puppy foods. There are several on the market,
so I
think you'd be able to find one. In addition, it is a good idea to
keep the
puppy from becoming obese, which doesn't sound like it is a problem.
The second common piece of advice is to encourage moderate exercise
consistently, in the hope that increased muscle strength will decrease
the
laxity in the tendon and muscle structure.
I can't say what percentage of German shepherds outgrow this condition
but
in our practice I think it is near 50%. Almost all improve some, but
many
continue to walk with the hocks down, or the carpus down, depending
on
which is affected, into their adult lives. If this is really severe
arthrodesis of the hock might offer some relief but I can't recall
ever
having a patient in which that seemed absolutely necessary.
There is a condition in German shepherd dogs in which draining tracts
develop around the hocks, that is thought to be due to an immunologic
problem in which there is a reaction to the collagen around the joint
(I am
not sure why just this joint, though). This seems to occur in young
adult
GSDs and some of the clinical case reports also mention a history of
postural problems with the hocks. This disorder is referred to as focal
metatarsal fistulation of the German shepherd dog in "Small Animal
Dermatology" by Scott, et. al.
At the present time, some vets seem to think that supplementation with
antioxidants or essential fatty acids may be helpful (note the
uncertainty). It is pretty safe to supplement with DermCaps (tm), 3V
Capsules (tm), OmegaDerm (tm) or something similar and to add Vitamin
E
(usually around 400 to 1000 IU daily) as an antioxidant. There are
no
supplements, no dietary changes and no exercise programs that I am
aware of
that have been documented to make a difference in this condition.
If he continues to have soreness from the panosteitis I definitely think
it
is OK, and advisable, to use pain relievers. Carprofen (Rimadyl Rx)
is a
good pain reliever, as is etodolac (Etogesic Rx) and I like aspirin,
as
well. Some dogs have really severe pain from this condition and I think
it
is OK to use opioid medications, such as codeine or even morphine,
if the
pain is severe enough.
I wish that I did have a way to help with his pastern laxity problem
that I
knew was effective.
Mike Richards, DVM
7/7/2001
Narrowing
of stance at hocks in young Lab
Question: Dear Dr. Mike,
Thanks as always for the newsletter and the great website. I have
an 11
month old Lab female weighing 65 pounds that was spayed at 5 months.
I
have fed her Eukanuba Large Breed puppy chow for most of her life
(except during a bout with diarrhea) and have kept her slim.
Both her
parents had Excellent ratings on their OFA. During the diarrhea,
I did
give her some other medications.
I have noticed something unusual in the last 4 weeks (It may have been
around longer but I don't know). When she stands (most of the
time),
her back legs do not go straight down at her sides. Instead,
her ankles
(tarsals?) come close together under her body and her back feet point
out at an angle. This seems to happen on both legs. Is
this something
to be concerned about? If it is a problem that can be helped,
I want to
take care of it as soon as possible. Thanks for your help. Gladys
Answer: Gladys-
When there are changes in posture it is usually worth checking
for the possibility of an
orthopedic problem. This would be a good age to consider taking X-rays
to
check for hip dypslasia, since it will show up in most cases by now,
if it
is going to be a problem later in life. Some dogs with hip dysplasia
will
compensate by adopting a different posture or gait.
I have seen two or three Labs in the last couple of years who developed
lateral luxations of the patellae (knee caps) and these were all labs
who
had a narrow stance at the hocks. This causes lameness or pain in most
cases, though.
Your vet may be able to make more specific recommendations after an
examination, too.
Hopefully there will not be a significant problem. Choosing a puppy
from
OFA Excellent parents is a good way to avoid hip dypslasia problems
but
doesn't totally eliminate the possibility of the disorder
developing. There are lots of dogs who have posture similar to
what you
describe who have no discernible problems and do well all their life.
Mike Richards, DVM
4/3/2001
Last edited 03/29/04