How Surgeons Actually Prevent Implant Infection and Biofilm in the OR

Biofilm and infection are two of the biggest things we worry about with breast implants — they drive long-term complications like capsular contracture and ongoing chronic problems. So when patients ask, "what are surgeons actually doing in the OR to minimize my infection risk?" — here is the full list of evidence-based techniques in my practice.

If you're getting an augmentation or revision, ask your surgeon about each of these. Most are quick, low-cost, and significantly improve your odds of a clean, problem-free implant.

The Keller Funnel is a disposable, lubricated funnel designed for implant placement.

• The implant goes inside the funnel
• The funnel passes through your incision
• The implant is then squeezed into the pocket through the funnel — without ever touching your skin

Why this matters: anything the implant touches on its way in (including your skin) can deposit bacteria onto its surface. Those bacteria are exactly what builds biofilm. By eliminating skin contact, the Keller Funnel meaningfully lowers the bacterial load on the implant going in.

Every implant patient should have a Keller Funnel used in their case. It's worth asking your surgeon about directly.

Putting a small adhesive dressing (often a piece of surgical tape or a Tegaderm) over the center of the breast and the nipple-areolar complex (NAC) at the start of the case has been shown to reduce the rate of infection and capsular contracture.

• The nipple ducts harbor bacteria — even in a perfectly sterile-looking surgical field
• Covering the NAC keeps that bacterial reservoir contained
• It's an extraordinarily simple step: a piece of tape, applied at the very beginning of the case

Cheap, fast, and proven. There's no good reason not to do it.

While we're operating, we are constantly irrigating the implant pocket and the implants themselves with sterile fluid. There are several options, each with their own evidence base:

• The basic baseline — clean, neutral, sterile
• Used by everyone, often in combination with other agents

• Diluted povidone-iodine mixed with saline at a specific concentration
• Works very well at killing bacteria
• Has a long history of safe use in implant surgery

• Various combinations (often referred to as "triple antibiotic" irrigation: typically gentamicin + cefazolin + bacitracin)
• Designed to cover the most common bacteria implicated in capsular contracture
• A long-time standard in many practices

• A natural, broad-spectrum antimicrobial
• Brand names you may see: PhaseOne and Vashe
• Effective against bacteria and the early biofilm that bacteria form on implant surfaces
• Easy to use, well-tolerated, and increasingly popular among plastic surgeons doing implant work

This is what I personally prefer — but any of the above is reasonable, and many surgeons use combinations.

A simple but impactful step: I change my gloves anytime I'm about to start working directly with the implant.

• Throughout a surgery, gloves accumulate microscopic contamination from skin, drapes, and tissue
• Putting on a fresh pair right before handling the implant minimizes the chance of transferring bacteria to its surface

It takes 30 seconds and costs essentially nothing.

Right before the implant goes in, I re-prep the skin around the incision with surgical soap.

• Even with a sterile-looking surgical field, skin bacteria do migrate over time
• A fresh prep right before the most vulnerable moment of the case gives us another layer of protection

Again — quick, inexpensive, evidence-supported.

Some surgeons use a different barrier approach:

• A Tegaderm dressing (clear adhesive film) is placed over the incision
• A small slit is cut through it
• The implant is passed through the slit, so the implant never touches the patient's skin at the incision

This is essentially another way of accomplishing what the Keller Funnel does — keep the implant from touching skin during placement. Some surgeons use both. Either approach is solid.

Implant surgery is, in many ways, a war against bacteria. The implant is a foreign body — once bacteria attach to it and start forming biofilm, the body has a very hard time clearing them. That biofilm is what we believe drives a lot of:

• Capsular contracture
• Chronic low-grade inflammation
• Late seromas (and in some cases, BIA-ALCL evaluation workups)
• Some of the systemic symptoms patients describe under the umbrella of "breast implant illness"

Every step on this list is designed to keep the implant as clean as possible when it goes in. None of them individually are huge — but stacked together, they meaningfully reduce your risk profile.

If you're consulting for a breast augmentation or implant revision, here are direct questions worth asking:

1. "Do you use a Keller Funnel for implant placement?"
2. "Do you cover the NAC with a dressing or shield during surgery?"
3. "What irrigation solution do you use? Is hypochlorous acid or betadine part of it?"
4. "Do you change gloves before handling the implant?"
5. "Do you re-prep the skin before placing the implant?"

A good surgeon will be able to give you a clear answer to all five — and "yes" or "this specific protocol" should be the response, not "no" or a vague hand-wave.

There is no single magic technique to prevent implant infection or biofilm — it's a layered approach. Keller Funnel + NAC shield + good irrigation + glove changes + skin re-prep stack together to give patients the cleanest possible implant placement we can offer.

If you're an implant patient (or about to be), ask your surgeon what their protocol looks like. The answers will tell you a lot about how seriously they take the long-term outcome of your reconstruction or augmentation.