Blog
 » 
Best Practices
 » 
How Surgeons Reduce Infection Risk in Dogs’ Orthopedic Surgery

How Surgeons Reduce Infection Risk in Dogs’ Orthopedic Surgery

Best Practices

X min read

Vets

Find out how surgeons protect your dog from infection during orthopedic surgery with proven aseptic protocols and post-op care strategies.

By 

Sustainable Vet Group

Updated on

April 21, 2026

.

How Surgeons Reduce Infection Risk in Dogs’ Orthopedic Surgery

Orthopedic surgery in dogs involves bones, joints, and often metal implants. These procedures usually take longer than soft tissue surgeries and require deeper surgical exposure.

Because of this, the risk of infection is higher. In dog orthopedic surgery, preventing infection is essential for safe healing and long term limb function.

  • Higher infection risk in dog orthopedic procedures Dog orthopedic surgeries expose bone and joint surfaces for extended periods. Longer surgery time and deeper tissue exposure increase the chance of bacteria entering the surgical site.
  • Role of plates, screws, and implants in dogs Metal implants used in dogs, such as plates and screws, do not have a blood supply. If bacteria attach to these implants, the dog’s immune system cannot easily reach them.
  • Why infections are harder to treat in dogs Once bacteria settle on implants, they can form biofilms. These protective layers block antibiotics and immune response, making infections difficult to clear in dogs.
  • Impact on canine healing and mobility Infection can slow bone healing, cause pain, and lead to implant failure. This may delay recovery and reduce long term mobility in dogs.

Strong infection prevention protects both healing and movement in dogs after surgery.


Where Surgical Infections Actually Come From in Dog Orthopedic Surgery

Infections after dog orthopedic surgery do not usually come from outside sources days later. In most cases, bacteria enter the surgical site during the operation itself.

Understanding where these bacteria come from explains why infection control during surgery is so critical for dogs.

  • Bacteria already present on the dog’s skin Dogs naturally carry bacteria on their skin and hair. Even after clipping and cleaning, some bacteria remain. When the skin is opened, these bacteria can move into deeper tissues.
  • Contamination during surgical exposure Dog orthopedic surgery exposes bone, joints, and implant sites. Any contact with non sterile surfaces during this time can allow bacteria to reach areas where the body cannot easily fight infection.
  • Airborne and contact based contamination Bacteria can enter the surgical field through air movement or direct contact. Operating room traffic, movement, and handling of equipment all influence contamination risk.
  • Residual bacteria left behind after surgery Even small amounts of bacteria left in the wound can multiply after closure. These bacteria may later attach to implants and cause infection during the healing process.

Controlling these sources helps protect dogs from surgical site infections.


The Surgeon’s First Line of Defense: Sterile Technique in Dog Orthopedic Surgery

In dog orthopedic surgery, sterile technique is the first and most important defense against infection.

Surgeons rely on strict aseptic protocols to reduce the number of bacteria that can reach bone, joints, and implants.

These steps are followed carefully throughout the entire procedure.

  • Operating room sterility and aseptic protocols The operating room is prepared to limit bacteria in the environment. Surfaces are disinfected, air flow is controlled, and only essential equipment is present during dog orthopedic surgery.
  • Surgical hand scrubbing, gowns, gloves, and draping Surgeons and staff scrub their hands using medical grade solutions. Sterile gowns, gloves, and drapes create a barrier that protects the surgical site from contamination.
  • Sterile handling of instruments and implants All instruments and implants used in dogs are sterilized before surgery. Plates and screws are handled carefully to avoid contact with non sterile surfaces.
  • Controlling operating room traffic and exposure Movement in and out of the operating room is limited. Fewer people and less activity reduce airborne bacteria and lower infection risk during surgery.

Strict sterile technique protects dogs from avoidable surgical infections.


Pre Surgical Skin Preparation and Site Control in Dog Orthopedic Surgery

Proper skin preparation is a critical step before any dog orthopedic surgery begins. The goal is to reduce bacteria on the skin without damaging it.

Healthy skin acts as a natural barrier, while damaged skin can increase infection risk.

  • Hair removal using clippers, not razors Clippers remove hair without cutting the skin. Razors can cause small cuts that allow bacteria to enter. This is why clippers are the safer choice for dogs before orthopedic surgery.
  • Antiseptic skin preparation before incision The surgical area is cleaned using antiseptic solutions to lower bacterial levels. This step targets bacteria that naturally live on a dog’s skin.
  • Proper timing to reduce bacterial regrowth Skin preparation is done close to surgery time. This limits how much bacteria can regrow before the incision is made.
  • Preventing micro abrasions that increase infection risk Gentle handling of the skin prevents tiny injuries. Micro abrasions give bacteria an easy path into deeper tissues once surgery begins.

Careful skin preparation supports safer surgery and better healing for dogs.


How Surgeons Use Antibiotics to Reduce Infection Risk in Dog Orthopedic Surgery

Antibiotics are used carefully in dog orthopedic surgery to reduce infection risk at the most critical time.

Surgeons do not rely on antibiotics alone. Instead, they use them as one controlled part of a larger infection prevention plan that focuses on timing, precision, and safety.

  • Purpose of prophylactic antibiotics in dog orthopedic surgery Prophylactic antibiotics are given to lower the number of bacteria present in tissues during surgery. Their main role is to protect exposed bone, joints, and implants while the surgical site is open and most vulnerable.
  • Importance of correct timing before the first incision Antibiotics must be present in the dog’s bloodstream and tissues before surgery starts. Giving them too early or too late reduces their effectiveness and leaves the surgical site unprotected during implant placement.
  • Why antibiotics alone cannot prevent all infections Antibiotics cannot fully stop bacteria from attaching to implants or forming biofilms. Once bacteria settle on plates or screws, they can survive despite proper antibiotic use.
  • Balancing infection prevention with antibiotic resistance Surgeons limit antibiotic use to avoid resistance. Using the correct drug for a short, targeted period helps protect dogs today without creating harder to treat infections in the future.

This balanced approach supports safer healing and long term surgical success in dogs.


Intraoperative Irrigation: Why Surgeons Wash the Surgical Site in Dog Orthopedic Surgery

During dog orthopedic surgery, surgeons regularly irrigate the surgical site to lower infection risk. Irrigation means washing the exposed area while the procedure is ongoing.

This step helps keep the surgical field clean before implants are placed and before the wound is closed.

  • Purpose of irrigation during dog orthopedic surgery Irrigation removes blood, bone debris, and loose bacteria from the surgical site. Clearing this material helps create a cleaner environment for healing and implant placement.
  • How saline lavage reduces surface contamination Saline lavage works by flushing away contaminants from bone and soft tissue surfaces. While saline does not kill bacteria, it helps reduce the number of bacteria present at the site.
  • When irrigation is performed during the procedure Surgeons irrigate at key stages of surgery, such as after bone cutting, before placing implants, and before closing the wound. These moments are when contamination risk is highest.

Regular irrigation supports safer surgery and protects implants in dogs.


The Problem of Residual Bacteria in Dog Orthopedic Surgery

Even with careful surgical technique and repeated irrigation, some bacteria can still remain in the surgical site during dog orthopedic surgery.

These remaining bacteria are a major reason why infections can develop after surgery.

Understanding this problem explains why surgeons focus so much on bacterial control during the operation itself.

  • Why bacteria can remain after saline lavage Saline lavage flushes away loose debris and surface bacteria, but it does not actively break down bacteria. Some bacteria stay attached to bone, soft tissue, or implant surfaces despite thorough washing.
  • How bacteria adhere to bone, tissue, and implants Bacteria can stick tightly to rough bone surfaces and metal implants. Once attached, they are harder to remove by flushing alone and can survive the rest of the procedure.
  • Early biofilm formation during surgery Biofilm formation can begin very early, sometimes during the surgery itself. This protective layer allows bacteria to hide and resist antibiotics and the dog’s immune response.
  • Why residual bacteria increase post operative infection risk Bacteria left behind after surgery can multiply during healing. When implants are present, these bacteria can cause deep infections that delay recovery and threaten long term mobility.

Reducing residual bacteria is critical for safer outcomes in dog orthopedic surgery.


Modern Intraoperative Lavage Approaches in Dog Orthopedic Surgery

In dog orthopedic surgery, some surgeons choose modern intraoperative lavage approaches to better control bacteria at the surgical site.

These methods are designed to physically remove bacteria that simple saline rinsing may leave behind.

The focus is on reducing bacterial load at the most critical time, while the wound is open and implants are being placed.

  • Why surgeons choose modern lavage techniques Saline irrigation helps flush debris but does not actively disrupt bacteria attached to bone or implants. Modern lavage approaches aim to reduce bacteria more effectively during surgery itself.
  • Physically removing bacteria that saline may leave behind Some advanced lavage methods are designed to break down bacterial attachment and early biofilm formation. This helps remove bacteria that remain after standard rinsing.
  • Reducing bacterial load before implant placement Lower bacterial levels during surgery reduce the chance of bacteria attaching to plates and screws. This lowers the risk of implant related infection in dogs.
  • Use of advanced surgical lavage solutions Many surgeons now use Simini as part of modern infection prevention strategies in dog orthopedic surgery. Simini is a non antibiotic surgical lavage designed to help reduce bacteria and biofilm risk without contributing to antibiotic resistance.

Modern lavage approaches add an important layer of protection during dog orthopedic surgery.


Dog orthopedic surgeries that involve implants require a higher level of infection control. Plates, screws, and prosthetic components help stabilize bones and joints, but they also increase infection risk.

Because implants stay inside the body, even a small amount of bacteria can cause serious complications if not controlled during surgery.

  • Higher infection risk with plates, screws, and prosthetics Implant related dog surgeries expose bone for longer periods and involve placing foreign materials into the body. Longer surgical time and added handling increase the chance of bacteria reaching the surgical site.
  • Why implants allow bacteria to attach more easily Metal implants do not have blood supply or immune defense. Bacteria can attach to their surfaces and remain protected from the dog’s immune system once surgery is complete.
  • Early attachment and biofilm risk Bacteria can begin attaching to implants during surgery itself. Once attachment starts, biofilm formation may follow, making infections harder to detect and treat later.
  • Importance of minimizing bacteria before closure Reducing bacterial load before closing the surgical site lowers the risk of post operative infection. Cleaner implant placement supports better bone healing and long term implant stability.

Extra infection control during implant surgeries protects recovery and long term mobility in dogs.


What This Means for Pet Owners Preparing for Dog Orthopedic Surgery

When your dog needs orthopedic surgery, understanding how infection risk is managed can help you feel more confident. Many important infection prevention steps happen during the surgery itself.

Knowing this allows you to ask informed questions and take part in shared decision making with your veterinary surgeon.

  • Understanding how surgeons reduce infection risk Surgeons use sterile technique, careful tissue handling, antibiotics, irrigation, and modern lavage approaches to reduce bacteria during dog orthopedic surgery. These steps work together to protect healing and implants.
  • Why asking about infection control is appropriate Infection can affect recovery, comfort, and long term movement. Asking about infection prevention shows that you are focused on your dog’s safety, not questioning your surgeon’s skill.
  • How informed questions support better decisions When you understand which steps are taken during surgery, conversations become clearer. This helps you align expectations and feel confident in the surgical plan.
  • Knowing prevention happens during surgery Some of the most important infection control measures occur while the surgical site is open. Understanding this helps you see why surgical technique matters so much.

Being informed helps you partner with your surgeon for the best outcome.


Conclusion

In dog orthopedic surgery, infection prevention is not limited to what happens before or after the procedure. The most critical steps take place during the operation itself. This is when bone, joints, and implants are exposed and most vulnerable to bacterial contamination.

  • Infection prevention happens during surgery Surgeons focus on controlling bacteria while the surgical site is open. Sterile technique, careful handling, antibiotics, irrigation, and modern lavage methods all work together at this stage.
  • Layered strategies reduce infection risk No single method can fully prevent infection. Surgeons use multiple overlapping approaches to lower bacterial exposure from different angles during dog orthopedic surgery.
  • Protecting healing and long term outcomes Reducing bacterial load during surgery protects implants, supports bone healing, and lowers the risk of complications. This leads to better recovery and improved long term mobility for dogs.

Strong infection control during surgery is key to successful orthopedic outcomes.


FAQs

Why is infection risk higher in orthopedic surgery compared to other surgeries?

Dog orthopedic surgery involves bone cutting, longer operating time, and often metal implants. These factors increase exposure to bacteria. Implants do not have blood supply, which makes it harder for the immune system to fight infection once bacteria attach.

Do antibiotics alone prevent surgical infections?

No, antibiotics alone cannot prevent all infections. They help reduce bacteria during surgery, but they do not stop bacteria from attaching to implants or forming biofilms. This is why surgeons use multiple infection control methods together.

Why do surgeons irrigate the surgical site during orthopedic procedures?

Surgeons irrigate to wash away blood, tissue debris, and loose bacteria. Irrigation helps create a cleaner surgical field before implants are placed and before closing the wound, reducing infection risk in dogs.

What are residual bacteria and why do they matter?

Residual bacteria are bacteria that remain after surgery despite cleaning and irrigation. These bacteria can multiply during healing and attach to implants, increasing the risk of post operative infection in dogs.

Is it appropriate for pet owners to ask about infection prevention during surgery?

Yes, it is appropriate. Asking about infection prevention helps you understand how your dog will be protected during surgery. It supports clear communication and shared decision making with your surgeon.

Get a Free Poster

Enhance your workspace with a high-quality radiographs reference poster, designed for veterinary professionals. This free physical poster will be shipped directly to you—just fill out the form to request your copy.

Related posts

Get a Free Poster for Your Clinic

Enhance your workspace with a high-quality radiographs reference poster, designed for veterinary professionals. This free physical poster will be shipped directly to you—just fill out the form to request your copy.

We'd love you to
Join Us!

Enter Your Details Below to Receive Your Information Pack

100% safe & secure. Your details are never shared or sold.

Thank you! Your submission has been received!
Oops! Something went wrong while submitting the form.

Taking Great TPLO Radiographs

Click Below to Watch Live Video Demos

We'll send you a Free Wall Poster with all the steps

Now that you are a pro at TPLO rads

Let's take your infection control to the next level

Watch these videos!

Step #1

Getting Ready

Ensuring a clean surgical field starts with proper skin preparation. This video demonstrates the best practices for:

  • Shaving the patient – Achieving a close, even shave while minimizing skin irritation
  • The Dirty Scrub – The initial skin prep step to remove surface debris and reduce bacterial load before the sterile scrub.

Following these techniques helps reduce infection risk and improve surgical outcomes. Watch the video to see how it’s done effectively!

Step #2

Reduce Your Risks

Many surgeons are shocked to find out that their patients are not protected from biofilms and resistant bacteria when they use saline and post-op antibiotics.

That’s Where Simini Comes In.

Why leave these risks and unmanaged?  Just apply Simini Protect Lavage for one minute. Biofilms and resistant bacteria can be removed, and you can reduce two significant sources of infection.

Step #3

Take the Course

Preventing surgical infections is critical for patient safety and successful outcomes. This course covers:

  • Aseptic techniques – Best practices to maintain a sterile field.
  • ​Skin prep & draping – Proper methods to minimize contamination.
  • ​Antibiotic stewardship – When and how to use perioperative antibiotics effectively.

Stay up to date with the latest evidence-based protocols. Click the link to start learning and earn CE credits!

Get Your
Free Poster!

Enter your information below, and we’ll ship it to you at no cost.

Do you want to customize it?

How many would you like?

About you

Shipping information

100% safe & secure. Your details are never shared or sold.

We will work on your request shortly.
Oops! Something went wrong while submitting the form.
What’s your role in animal care?

Tell us who you are so we can guide you to the most relevant information.