Limb amputation is a surgical
procedure commonly performed in dogs and cats to remove a diseased
or injured limb, either front or rear. Amputation may be a
life saving procedure for animals that only minimally impacts their
comfort and quality of life.
Owners should have a clear
understanding of why the surgery is being performed and what can be
expected afterwards. Pets function exceptionally well on three legs
and are able to run, walk, and play without pain or discomfort.
Pets do not suffer the psychological distress of losing a limb the
same way a human does, so it may be difficult for owners to
understand how their pet will feel or act. Vets have found
amputations do not seem to slow animals down or even bother them
very much. Since dogs and cats are four-legged animals, they
can get along really well on three legs. Most animals will
tolerate an amputation extremely well and have a really good
quality of life afterwards. The primary purpose of the limb
is in movement. Because pets do not need to perform fine motor
skills they easily adapt to having only three legs.
Most animals that have had
amputations have probably already learned to walk on three legs and
owners may not realize this. Often, the pet may be relieved
to have the painful leg removed and may feel even better after the
amputation, than it did before surgery.
Another aspect to consider is the
long term effect of an amputation. An early amputation may be
more beneficial for your pet than for it to go through multiple
painful surgeries to save the leg.
Prior to general anesthesia your vet
may run blood work to check for other health problems. Chest X-rays
are often taken when tumors are present to determine if there is
evidence that the tumor has spread to the lungs.
If cancer is suspected, x-rays are
taken of the limb and typically a biopsy will be obtained to
confirm the diagnosis prior to amputation. In certain parts of the
country some fungal bone lesions can mimic cancer on x-rays and
therefore a bone biopsy is necessary before such a radical surgical
procedure is performed.
Pain medications are important both
before, during and after amputation, your veterinarian will try to
ensure your pet’s comfort throughout the procedure. Pain medication
is usually given for a week or so after the surgery.
The majority of dogs are up and
around the day following the amputation. Some assistance may be
necessary to help larger dogs outside, particularly if they are
overweight or were not lame before surgery.
In addition, after bringing your pet
home, you can help your pet adapt more quickly by providing quality
food, lots of rest and comfortable bedding. Make sure you
supervise your pet especially when you first get home because it
can slip and fall.
You may be concerned about how your
dog will look or move around after an amputation. If possible, have
your veterinarian put you in contact with other pet owners who have
had the same concerns, but had the surgery performed nonetheless.
Such owners can assure you that dogs typically do extremely well on
three legs. It may also be helpful to see pictures of what front
leg amputations and hind leg amputations look like after
surgery.
These pictures are very graphic do
not open if you have a weak stomach.
Click here >> to view pictures of a Great Dane with a front
leg amuptation
Click here >> to view pictures of a Great Dane with a rear
leg amputation
After surgery there will be an
incision that needs to be assessed daily for swelling, redness or
discharge. Contact your veterinarian if you have questions or
concerns. Stitches or staples need to be removed in 10-14 days. Do
not allow your pet to lick or chew at the surgical site. An
Elizabethan collar may be necessary to prevent this from
occurring.
Reasons for Limb Amputation
One of the most common reasons for a
limb amputation in dogs is treatment of osteosarcoma, which is the
most frequently diagnosed canine bone tumor. This tumor tends to
occur in large and giant breed dogs. It may occur in young dogs (12
to 18 months of age), but is more common in older animals. The most
common locations are just above the carpus (wrist), the proximal
humerus (just below the shoulder joint), and around the bones of
the knee joint. Amputation is an excellent way to control the local
disease, which is the actual tumor on the limb. Unfortunately this
is a malignant tumor and it has almost always spread elsewhere by
the time an amputation is performed.
Soft tissue sarcomas are another
type of tumor that can develop on the limbs. These tumors are
malignant, but tend to be slow to spread to other parts of the
body. They are locally aggressive (that is, they damage and invade
the structures at their location). If they occur on a limb it is
often difficult to get rid of the tumor in its entirety while
maintaining muscles, tendons, nerves, ligaments and bone needed for
normal limb function. Thus, amputation may be the surgical
procedure of choice.
In addition to surgery, radiation
therapy or combinations of radiation and chemotherapy may be
appropriate for certain limb tumors. Treatment options can be
discussed with your veterinarian or with a surgical or oncological
specialist.
Severe trauma. Amputation may be
recommended when there are multiple fractures and extensive trauma
to the muscles, tendons and ligaments of the limbs. Nerve damage or
a severely broken limb can also result in amputation. As in humans,
even when money is not an issue, amputation may be the treatment of
choice for limb trauma where nerve supply or blood supply is
severely damaged or bone and soft tissue injury is beyond what can
be repaired by modern surgical techniques. Damage to the nerves
that supply the limb, for example following trauma that results in
pelvic fractures, may be irreversible, resulting in a
non-functional limb that drags. This may result in abrasions of the
paw through failure of the animal to pick up the leg properly.
Amputation may be indicated in such cases.
There is little that you can do to
prevent your pet from developing a tumor that might necessitate
amputation. However, if trauma is the cause, steps can be taken to
avoid it from occurring in the first place. Ensuring that your dog
remains on a leash and providing adequate fencing will reduce the
chance of your pet getting hit by a car.
Even though pets adapt amazingly
well to an amputation, sometimes situations can be difficult due to
owner expectations. Pets that were used for performance, hunting,
or other higher levels of activity may have some athletic
limitations after an amputation. However, the impact of amputation
on the life of a house pet is usually minimal.