Veterinary Surgery February 2026 – Soft Tissue Part 2: Axial Flaps & Laparoscopic Ergonomics

In this Simini Small Animal Surgery Podcast episode, we continue our soft tissue coverage from the February 2026 issue of Veterinary Surgery with two studies that highlight how outcomes depend not just on technique, but on tissue biology and surgeon-tool interaction.

From large-scale reconstructive flap surgery in cats to laparoscopic instrument design, these papers reveal how both biology and ergonomics can shape surgical success.

In this episode, we talk about:

✅ Cinti et al. — A retrospective study evaluating the lateral caudal axial pattern flap for reconstruction of large caudodorsal defects in cats. Despite a 50% complication rate, all complications were minor (seroma, edema, partial dehiscence), and 0% required revision surgery. Surgeons were able to safely use flaps averaging 61.3% of tail length, demonstrating that feline tail vasculature provides robust and reliable perfusion even under high tension, making this a viable option for massive defects. 

✅ Cormillot et al. — A prospective, randomized crossover study of 120 surgeons evaluating laparoscopic instrument handle size. The study found that hand size strongly predicts optimal handle preference, with surgeons wearing glove sizes ≤6.5 significantly preferring smaller handles, while larger-handed surgeons preferred standard sizes. Poor ergonomic fit led to two-handed instrument use, increased wrist strain, and reduced efficiency, highlighting a major but often overlooked contributor to surgeon fatigue and long-term injury risk. 

Together, these studies emphasize a critical concept: successful surgery depends on both the biology of the patient and the biomechanics of the surgeon.

🎓 Journal Articles Discussed

• Cinti et al. — Outcome and complications of lateral caudal axial pattern flap in 14 cats.
• Cormillot et al. — Surgeon hand size influences laparoscopic finger loop handle preference.

📚 From the February 2026 issue of Veterinary Surgery

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Transcript

SPEAKER_01 0:04

Hi, I'm Carl Damiani, and this is the Simene Small Animal Surgery Podcast, your fast focused update on what matters most from the latest small animal surgical literature. In each episode, we break down key articles from the veterinary journals and translate them into surgical insight you can use, today, not someday. This episode continues our soft tissue coverage from the February 2026 issue of veterinary surgery, and we're focusing on reconstruction, from flap design to surgeon ergonomics. First, we'll look at a study by Cinti et al. evaluating the lateral caudal axial pattern flap for reconstruction of caudidorsal defects in cats. This is a technically demanding but highly useful flap, and we'll break down complication rates, flap viability, and what the data actually say about outcomes. Despite a relatively high complication rate, most were minor, and the majority of cats healed without the need for revision surgery, reinforcing this as a reliable option in the right cases. Then we move to Cormio et al. who explored something we don't talk about enough. How instrument design, specifically laparoscopic handle size, impacts surgeon comfort and performance. In a large perspective study, they show that hand size strongly influences handle preference and usability, with smaller handed surgeons often female, experiencing more difficulty with standard instruments. This has real implications for fatigue, performance, and even long-term injury risk in minimally invasive surgery. Two studies. One shared theme.

SPEAKER_02 1:55

Imagine trying to close um a massive gluteal defect on a cat, and your best option is to literally harvest over 60% of their tail.

SPEAKER_00 2:05

Right. It sounds extreme.

SPEAKER_02 2:07

It really does. But uh today we're looking at why that might actually be your safest bet in the OR. Welcome to this custom deep dive designed specifically for you.

SPEAKER_00 2:17

Yeah, our mission today is to extract clinically actionable intelligence from a recent paper so you know exactly what changes in your OR tomorrow.

SPEAKER_02 2:24

Exactly. We're looking at Cyntilla L 2026, which tackles the notoriously difficult challenge of reconstructing large caudidorsal trunk defects in cats.

SPEAKER_00 2:35

Aaron Powell And they do this using the lateral caudal axial pattern flap. It's uh it's a technique we have seen explored in canine patients, but this retrospective study specifically evaluates feline applications.

SPEAKER_02 2:46

To see if it's actually reliable for massive defects, right?

SPEAKER_00 2:48

Right, typically following major tumor excisions like fibrous arcomas.

SPEAKER_02 2:52

Okay, let's unpack this. Because swinging a massive section of tail tissue up to the trunk isn't just about like finding spare skin. No, definitely not. You are relying on an axial pattern flap. So it's almost like moving a lamp across the room, but having to keep it plugged into the exact same wall outlet.

SPEAKER_00 3:08

That is a perfect way to picture it.

SPEAKER_02 3:10

Right. You have to preserve that vital vascular tether, the caudal artery, while rotating the tissue into place. So, I mean, how far can you stretch that tether before you lose viability?

SPEAKER_00 3:20

Aaron Powell Well, that vascular preservation is the entire foundation of the technique. And in this study of 14 cats, surgeons safely utilized a mean flap length of 61.3% of the total tail length.

SPEAKER_02 3:34

Aaron Powell Wait, over 60% of the tail?

SPEAKER_00 3:36

Yeah, over 60%.

SPEAKER_02 3:37

Aaron Powell That is a massive vascular demand for just one artery to support.

SPEAKER_00 3:42

It is, but what's fascinating here is that this measurement is entirely consistent with existing canine guidelines.

SPEAKER_02 3:47

Oh, really?

SPEAKER_00 3:48

Yeah. And the underlying clinical insight is what really matters. It proves feline tail tissue possesses an incredibly robust collateral vascular network.

SPEAKER_02 3:56

Aaron Powell Ah, so it's a lot more forgiving.

SPEAKER_00 3:58

Exactly. It makes the tissue far more forgiving under high tension than typical flank skin, preventing high rates of distal necrosis at the tip of the flap.

SPEAKER_02 4:06

Okay, but I'm looking at the data here and I do have to push back a little.

SPEAKER_00 4:09

Sure, go ahead.

SPEAKER_02 4:10

There is a 50% post-op complication rate. Half the cats develop issues. If a surgical technique fails half the time, why on earth are we choosing it over secondary intention healing?

SPEAKER_00 4:22

Aaron Powell That is a fair question, but it is crucial to look at how those complications actually manifest.

SPEAKER_01 4:28

Okay, how so?

SPEAKER_00 4:29

Yes. Seven out of the 14 cats developed issues. We're talking seromas, edema, and partial dehesance, each at a rate of 14.2%.

SPEAKER_02 4:39

Right.

SPEAKER_00 4:40

But 0% of these cats required revision surgery.

SPEAKER_02 4:44

0%.

SPEAKER_00 4:45

Zero. They were entirely minor.

SPEAKER_02 4:47

Aaron Ross Powell Wow. So even with a massive tissue rotation, the vascular supply holds up well enough to avoid major necrosis.

SPEAKER_00 4:53

Exactly. And the real surgical pearl involves those seromas.

SPEAKER_02 4:56

Okay.

SPEAKER_00 4:57

They occurred even when active suction drains were left in place postoperatively.

SPEAKER_02 5:01

Wait, even with drains?

SPEAKER_00 5:02

Yes, because mechanistically the dead space and the constant shearing forces in that gluteal region often just overwhelm standard suction.

SPEAKER_02 5:09

Oh, that makes sense.

SPEAKER_00 5:10

But they resolve spontaneously. So the clinical impact for your practice is clear. Don't panic and don't cut again. Conservative management absolutely works here.

SPEAKER_02 5:20

Aaron Powell Now here's where it gets really interesting. Since we know these massive high-tension flaps are highly prone to seromas and fluid buildup, what are we doing right before closure?

SPEAKER_00 5:30

Aaron Powell Right, to manage that risk.

SPEAKER_02 5:31

Yeah, to make sure we aren't trapping bacteria in that fluid-filled dead space.

SPEAKER_00 5:36

Yeah.

SPEAKER_02 5:36

If we just use a standard saline lavage, is that um is that sufficient?

SPEAKER_00 5:40

Aaron Powell Well, independent head-to-head studies show that standard saline lavages actually leave 42% of bacteria behind. It is. When you are closing a defect prone to fluid accumulation, leaving that bacterial load is a significant blind spot.

SPEAKER_02 5:56

Aaron Powell So how do we mitigate that microscopic risk without aggressively over-treating the tissue bed?

SPEAKER_00 6:02

That is exactly where Semini Protect lavage changes the protocol.

SPEAKER_02 6:05

Okay.

SPEAKER_00 6:05

It is a non-antibiotic lavage that works through mechanical disruption. It essentially alters the surface tension so bacteria cannot cling to the tissue wall.

SPEAKER_02 6:14

Aaron Powell Allowing them to just be flushed out entirely.

SPEAKER_00 6:16

Aaron Powell Right. In those same studies, it left 0% of bacteria behind in under 60 seconds.

SPEAKER_01 6:21

Aaron Powell Oh, wow.

SPEAKER_00 6:22

Yeah. It is a localized, safe way to reinforce your existing closure protocol and really manage that dead space risk.

SPEAKER_02 6:30

Aaron Powell So bringing it all together, what is the clinical punchline for Cynthia et al. 2026?

SPEAKER_00 6:36

Aaron Powell The lateral caudal axial pattern flap is a highly reliable reconstructive technique for feline cautidorsal defects. Expect minor complications like self-limiting seromas, but trust the healing process.

SPEAKER_02 6:48

Because the feline vascular network is built to handle it.

SPEAKER_00 6:50

Exactly. And this raises an important question for you to think about. Since cats seem naturally predisposed to developing harmless seromas with this flap that resolve on their own, are we currently overtreating feline wound complications?

SPEAKER_02 7:03

Aaron Powell Simply because we expect their healing process to perfectly mirror a dog's.

SPEAKER_00 7:07

Precisely.

SPEAKER_02 7:07

That is a great clinical reality to ponder before your next major tumor excision.

SPEAKER_01 7:15

Let's explore another relevant study.

SPEAKER_02 7:22

So if your hands are like constantly aching after a string of laparoscopic biopsies, you know, the problem might not actually be your technique.

SPEAKER_00 7:30

Right. It's probably your equipment.

SPEAKER_02 7:32

Exactly. So today our mission for this deep dive is to deliver a fast, accurate, decision-enabling analysis of a single vital paper. We're looking at a study that basically proves the standard instruments you use every day in the OR were, well, billed for a hand size you might not actually have.

SPEAKER_00 7:50

Yeah. We are diving into Cormalot et al. 2026. And this paper tackles a massive and honestly often ignored clinical problem. I mean, the fact that most laparoscopic instruments are manufactured by default to fit a standard size 7.5 male glove.

SPEAKER_02 8:05

Aaron Ross Powell Which is a huge assumption to make about the workforce.

SPEAKER_00 8:08

Trevor Burrus Right. So if you are a veterinary surgeon with smaller hands, this built-in mismatch puts you at a significantly increased risk for work-related musculoskeletal disorders, and it can actively decrease your surgical competence.

SPEAKER_02 8:19

Okay, let's untack this. Because performing delicate surgery with standard instruments, when you have small hands, is I mean it's like trying to run a marathon and shoes three sizes too big.

SPEAKER_00 8:28

That is a perfect analogy.

SPEAKER_02 8:30

Right. You just physically lack the leverage. But I imagine quantifying that kind of ergonomic disadvantage is tricky since fatigue is so subjective. How did they definitively measure this discomfort and prove the tool was the actual problem?

SPEAKER_00 8:44

Aaron Powell Well, that is the beauty of the study design. They set up a blinded, randomized crossover study at the ACVS symposium.

SPEAKER_02 8:52

Oh wow, so a major event.

SPEAKER_00 8:54

Exactly. They had 120 surgeons perform a laparoscopic cup biopsy task on a trainer box. And the brilliant part is they used three differently sized ring or finger loop handles, so small, medium, and large.

SPEAKER_02 9:08

Okay.

SPEAKER_00 9:08

And the surgeons were completely blinded to which handle they were actually holding while completing the task.

SPEAKER_02 9:13

Here's where it gets really interesting. Because let me guess, since they were blinded to the visual size, once the pass was done, anyone under a size 7 glove immediately rejected the standard instruments.

SPEAKER_00 9:24

Spot on. I mean, the data was incredibly clear. Physical glove size directly predicted the preferred handle. Surgeons with a glove size under 6.5 who uh in this study were predominantly female overwhelmingly preferred the small handle.

SPEAKER_02 9:40

Wow. Wait, what about the male surgeons?

SPEAKER_00 9:42

Male surgeons universally found that same small handle to be the least comfortable of the three.

SPEAKER_02 9:47

So it really is just a hard physical divide based purely on anatomy.

SPEAKER_00 9:51

Yeah. And what's fascinating here is the specific reason for these preferences. The two groups describe their physical constraints completely differently. Female surgeons reported that the smaller handle made it easier to turn the dial.

SPEAKER_02 10:05

Because otherwise they literally can't reach it.

SPEAKER_00 10:07

Exactly. When that handle is too large, you physically cannot reach the rotation wheel while keeping your fingers in the loops. You have to break your grip and use two hands just to rotate the instrument.

SPEAKER_02 10:17

That sounds exhausting to do repeatedly.

SPEAKER_00 10:19

It is. But on the flip side, male surgeons who preferred the larger handles focus on a completely different mechanical metric. They stated that their fingers felt more comfortable in the grips.

SPEAKER_02 10:29

So they just needed the physical volume so their fingers didn't cramp up during actuation. Right. But going back to the smaller hands, if you were dropping your primary grip to turn a dial with your other hand, you're introducing a ton of awkward mechanics. You're literally bending your wrist at extreme, unnatural angles over and over again.

SPEAKER_00 10:48

Aaron Powell And doing that for an hour, multiple times a week over a 20-year career, I mean, that is exactly how you destroy your joints.

SPEAKER_02 10:56

So what does this all mean for you in the OR tomorrow?

SPEAKER_00 10:59

Well, the clinical relevance here is immediate. Using optimally sized handles reduces the need for those awkward two-handed grips. It prevents excessive wrist hyperflexion, and it just generally lowers your injury risk.

SPEAKER_02 11:11

It really comes down to preserving your most vital surgical instruments, which are your own hands.

SPEAKER_00 11:15

Precisely. So here's what a small animal surgeon should remember. One size does not fit all. If you wear a glove size of 6.5 or smaller, specifically request and test smaller laparoscopic handles to immediately improve your surgical ergonomics.

SPEAKER_02 11:34

You can find the full link to OK Cormulate et al.

SPEAKER_00 11:40

And as you think about those aching wrists and the physical toll of your last procedure, consider this. If the standard surgical handle actively hinders a massive portion of the veterinary workforce, what other standard OR equipment might be quietly sabotaging your surgical efficiency and physical longevity?

SPEAKER_01 12:01

That's it for this episode of the Simony Small Animal Surgery Podcast. This show is brought to you by Semini Protect Lavage, our interoperative lavage developed to target resistant bacteria and biofilms, where traditional solutions of saline and post op antibiotics fall short. If you're interested in learning more or trying out your own procedures, you'll find information and links in the show notes. Listening, and we'll see you in the next episode.