Spaying or Neutering Your Pet

With few exceptions, most veterinarians recommend that ALL cats and dogs be spayed (female pets) or neutered (male pets).   Deciding to breed an animal should be a big decision that is thought out ahead of time with respect to the time and expense of breeding the dog(s) or cat(s), raising the puppies or kittens for a time, getting the medical care and vaccines necessary, and finding them homes.

Talk to your veterinarian

When getting ready to think about spay/neuter, it’s important to ask your veterinarian simple questions like at what age it should be done, how it is done, and possible complications associated with anesthesia and surgery.  It may be a routine procedure, but it’s still surgery!  It’s also important to ask about the anesthesia and surgery procedure itself.  Not every veterinary practice has the same standard of care for anesthesia and surgery, so comparing one practice to another can be like comparing apples to oranges.  So ask about whether or not the anesthesia includes IV catheter, fluids, pain control, intubation, etc.  And for the spay surgery, ask if they’ll remove the ovaries or the ovaries and uterus.

When is the right time?

Most of the time, we recommend that the spay or neuter be done around 6 months of age.  For spays, it is more important to try and get the surgery done BEFORE their first heat cycle to help reduce the risk of mammary cancer.  There is a statistical increase in the risk of mammary/breast cancer in dogs that have gone through one or more heat cycles.  There is less of an age concern with neuters as there isn’t the cancer association like this.

For large breed dogs, we will sometimes recommend delaying their surgery until they’re older – more like 12-18 months old.  This recommendation has to do with the interplay of hormones and growth plate closure in growing puppies – for those slower-growing larger breed dogs; it’s nice to let them grow more before we spay/neuter to help reduce the risk of certain joint problems. There was a study specifically in Golden Retrievers that compared early vs. delayed spay/neuter and the impact on things like cruciate ligament injuries (like an ACL tear in people) later in life.

In neutering males, it’s easy to recommend delaying it.  For spaying females, it becomes a little more of a case by case recommendation because you have to balance the possible future risk of joint disease that might occur with spaying before a heat cycle versus the possible future risk of mammary cancer by spaying after a heat cycle.  Talk to YOUR veterinarian about their recommendation.

How is the surgery done?

For the surgery itself, it’s more straightforward for a neuter – it’s pretty much done the same way everywhere assuming they aren’t cryptorchid (where one testicle is retained in the abdomen).  For spay surgeries, there are more options:

  • Traditional Ovariectomy – a medium incision into the abdomen where ONLY the ovaries are removed
  • Laparoscopic Ovariectomy – a small incision where ONLY the ovaries are removed with small instruments; a shorter recovery time with fewer risks of complications
  • Traditional Ovariohysterectomy – a larger incision into the abdomen where the ovaries and uterus are removed; a slightly longer recovery time, and a slightly higher risk of complications
  • Laparoscopic Ovariohysterectomy – a small incision where the ovaries and uterus are removed with small instruments; a shorter recovery time with fewer risks of complications

Frontier’s standard is either traditional or laparoscopic ovariectomy on female pets, but we can perform all of the above.  The laparoscopic equipment is costly, and the veterinarian needs advanced training to perform these surgeries, so it isn’t something that ALL hospitals offer.

Why Ovariectomy instead of Ovariohysterectomy?

In North America, having your dog or cat spayed means having her ovaries and uterus removed (called an ovariohysterectomy or OHE). However, in most European countries only the ovaries are removed (called an ovariectomy or OVE). Why has OVE replaced OHE as the standard spay procedure for female pets in Europe but not the US and Canada?

By removing the uterus as well as the ovaries, a complete ovariohysterectomy is thought to remove any chance of future uterine problems. North American veterinarians are likely responding to this concern as well as relying on their experience – OHE is the only method taught in most US veterinary schools. But studies conducted for the past 15 years have consistently found no evidence of increased health risks with OVE as compared to OHE.

  • There are studies, as well as decades of European data, that back up OVE as a less involved surgery that has fewer post-surgical problems and no association with long-term health problems.
  • Complete removal of the ovaries is a complete sterilization procedure.
  • A 2011 review of OHE and OVE procedures concluded that there is no benefit to performing OHE over OVE.
  • The same review concluded that the advantages of OVE include the potential for less post-surgical issues.

In line with one of our Pillar philosophies – offering “Cutting-edge knowledge & equipment,” Frontier offers OVE as the standard sterilization procedure in dogs and cats. There will be individual cases where an OHE is the more appropriate option for a particular patient, and your veterinarian will proceed with an OHE if it is deemed most appropriate for your pet.

Do you have questions about spaying or neutering your pet? We’re here to help! Complete the form below and a member of our team will get back to you as quickly as possible! You can also call us at 503-648-1643.