Approximate, Don't Strangulate

Cut to the Chase: General Surgery Survival Series — Post 09

The wound looks good until day three.

That's when the nurse calls. The edges are raised, she says. A little dusky. You walk to the bedside, pull back the dressing, and see it — sutures biting in like a wire tie around a garden hose, skin puckered and pale between each one. The tissue is telling you something it tried to tell you in the OR.

You pulled too hard.

The real issue isn't that early trainees don't know how to tie. It's that they think closure is a strength test. Tight feels secure. Tight also hurts tissue.

Closure is about bringing tissue together without punishing it. Approximation. Not force. Not performance. Not proving you care by cinching down until the edges blanch. From my side of the table, I'm not looking for aggression. I'm looking for judgment.

A good stitch does not drag tissue into submission. The edges meet. They line up. They stay there. Maybe a little eversion. Fine. What you do not want is skin that looks pinched, white, or vaguely offended. If the knot feels solid in your hands but the tissue looks miserable, the tissue wins that argument.

Look at the wound edges as you tighten, not after. By the time you "check" at the end, you may already be too far.

Students miss this because they stare at the knot. They watch the throws, the driver, their fingers. Meanwhile the tissue is answering the actual question and nobody is listening.

Stop judging the tie by what it feels like in your hands. Judge it by what it does to the tissue.

The suture does not heal the wound. Tissue heals the wound.

What you are doing is holding a door open while something else walks through it. Fibroblasts cross from one cut surface to the other while you are scrubbing out. All they need is geometry: edges approximated, close enough to touch, loose enough to live.

Tissue swells postoperatively, every single time. Whatever slack you left is not a mistake. It is biology accounting for itself. The wound that breaks down on day three is almost never a knot failure. The knot held. The tissue beneath it didn't.

A lot of tension mistakes start before the knot anyway. Uneven bites. Bad spacing. One side deeper than the other. Bad geometry first, then force to cover it up. Force is usually the cleanup crew for an earlier mistake.

Bad setup makes people over-tighten. Fix the bite, the spacing, or the angle before you blame the knot.

If the edges aren't coming together without real resistance, that's information — unaddressed tension below, wrong plane, dead space that hasn't been closed. Those are solvable problems. None of them are solved by torque.

Spacing matters more than you realize. Work in halves: midpoint first, then the midpoints of each half. Every suture redistributes tension across what's left. Jump around and you run out of tissue.

Eversion is a needle problem, not a knot problem. You get it from where the needle goes — perpendicular entry, wide bite at depth, symmetrical exit. If you are fighting for eversion at the time of tying, you lost that fight four seconds earlier. Fixing one with the other does not work.

There is a specific feeling when you are doing this wrong: the tissue is pulling against you and you are pulling back. You are in a negotiation with the wound, and you have decided to win. You will not win.

And nerves make all of this worse. By the time you are handed a stitch, you have spent the case running the usual clerkship static in the background: where do I stand, am I in the way, does the resident regret letting me touch this. That noise matters.

Anxiety makes firmness feel like competence. They are not the same thing.

When anxiety rises, people speed up and pull harder. That is not a character flaw. That is physiology.

Before you tighten each knot, take a beat. Not because this is a wellness retreat. Because it settles your hands enough to keep them from getting jerky.

Then give your brain one job: edges even, slight eversion, no blanching.

One job is manageable. Six jobs is how students and interns end up strangling skin while trying to look calm.

The attending didn't say anything when I overtightened the first time someone let me close. I felt it before she said it — the slight overcorrection, the suture biting harder than it should. I looked up and she was watching the tissue, not my hands.

"Loosen that back." Not sharp. Just said the way you say something that needs saying. The tissue came back to color almost immediately.

I think about that moment when I watch trainees close, not because it was embarrassing, though it was, but because of what happened to my hands afterward. They slowed down. They started watching.

When someone corrects your tension, don't spin that into a story about not belonging in surgery. It means you are being taught in real time. The room is not cruel. It is serious. Those are different things.

The tissue will tell you when to stop. You have to be listening instead of finishing.

Closure is not where you prove you care. It is where you show you know when to stop.

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What to Read Next: Post 10 — What Are All These Instruments? You've been handing them back one at a time without being sure what half of them are called. That's about to change.