Flap Surgery, Skin Grafts & VAC Therapy: How Chronic Wounds Are Definitively Closed

A son brought me his mother's tablet last week, open to a photo of her heel — black, dry, shrunken, with a clean line where healthy skin met dead tissue. "The wound care nurse said it's stable, don't touch it," he told me. He wanted to know if that was correct, or if she needed chronic wound flap surgery India families keep hearing about once a wound stops responding to dressings. The honest answer was that the nurse was right, for that particular wound, at that particular moment — and that is exactly the kind of nuance that gets lost when people search for a single procedure instead of asking what their specific wound needs.

That mismatch — one wound, four completely different correct answers depending on what's underneath it — is what I spend most of a first consultation untangling. A dry, stable eschar on a heel with adequate blood supply sometimes needs to be left alone entirely, allowed to auto-amputate at its own pace. A wet, undermined sacral wound on the same day, in the same clinic, might need urgent debridement and a flap within the week. Families arrive expecting one wound-care roadmap. What they actually need is a wound-specific one.

The Question I Ask Before I Look at the Dressing

Before I even remove the dressing, I ask what the wound looked like a month ago compared to today. Static wounds and worsening wounds are different clinical problems even if they look identical on a single visit. A wound that's the same size it was four weeks ago, with a clean base, might just need continued local care and time. A wound that's grown, deepened, or started draining more than it did — that trajectory matters more than the day-one photograph, because it tells me whether the tissue is fighting a losing battle against pressure, infection, or poor blood flow.

For the mother's heel, the trajectory was flat — no growth, no drainage, no smell, good pulses on exam. That combination usually means demarcation and dry gangrene are doing exactly what they're supposed to do, and surgical intervention at that stage would remove tissue the body was already managing safely on its own.

Reading the Wound Bed Instead of the Calendar

Where families get stuck is treating duration as the deciding factor — "it's been six months, so surely it needs surgery." Duration tells me almost nothing on its own. What decides the pathway is what's exposed at the base: healthy granulation tissue means we're closer to closure than the family thinks; exposed bone, tendon without its lining, or a cavity that tunnels under intact skin means no amount of dressing changes will finish the job, however many more months pass.

I ask families to notice one thing themselves before the visit — does the wound look smaller and pinker week over week, or does it look the same or worse? That single observation, more than any lab value, tells me whether we're in a watch-and-support phase or a plan-the-closure phase.

Sequencing: What Comes Before a Flap Is Even Discussed

Most chronic wounds that eventually need surgical closure pass through a sequence, and skipping steps is where things go wrong. Debridement first, clearing dead and contaminated tissue so I can actually see what I'm working with. Then, if the defect is large or irregular, VAC therapy wound closure to draw the edges in and build granulation tissue over one to two weeks — a bridge, not a fix. Only once the bed is clean and vascular do we decide between a skin graft chronic wound India approach and a flap.

A skin graft is a thin sheet of skin that survives purely on the blood supply of whatever it's laid onto — it needs muscle, fascia, or well-vascularised granulation tissue underneath, and it will not take over bare bone or poorly perfused tissue. A flap carries its own blood supply along with it, which is why pressure sore flap reconstruction India cases over the sacrum, ischium, or trochanter almost always need a flap rather than a graft — those wounds sit directly over bone with essentially no cushioning soft tissue to graft onto.

Why the Same Wound Can Need Two Different Answers, Weeks Apart

The heel and the sacrum in the same family illustrate this well. Both were "chronic wounds." One needed nothing but observation because the biology was already resolving it safely. The other, on a different visit for a different relative, needed debridement, then VAC, then a perforator flap, because it sat over bone with an undermined pocket invisible from the surface. I've had families ask why one relative "got surgery" and another "just got told to wait," assuming inconsistency — when in fact both decisions came from the same underlying logic, applied to two different wound beds.

This is also where I talk through wound closure surgery techniques honestly rather than presenting flap surgery as the default escalation. Reconstruction is chosen because the anatomy demands it, not because it sounds more decisive than continued dressing care.

The Part of Recovery That Determines Whether It Lasts

A flap that heals well in the first two weeks can still break down in month three if the cause of the original wound isn't addressed. For pressure sores specifically, that means a real conversation about repositioning schedules, mattress or cushion selection, and protein intake — not as an afterthought at discharge, but as a factor I weigh while still choosing the flap design. If a family tells me two-hourly repositioning isn't realistic at home, I lean toward a flap with more redundant, forgiving tissue rather than the most elegant option on paper, because the plan has to survive contact with an actual household, not just an operating table.

Questions About This Specific Wound, Not Wounds in General

If the wound bed looks clean and pink, does that mean surgery isn't needed at all? Often, yes — a clean, granulating bed on a shallow wound may close with continued dressing care or a graft rather than a flap. The exception is if the wound sits directly over bone or a joint, where even good granulation tissue may not hold up long-term without a flap's blood supply.

How do you decide between continuing VAC therapy and moving to surgery? By re-examining the wound bed on a set schedule, usually every one to two weeks, and looking for exposed bone, ongoing undermining, or stalled granulation. VAC without a review point just becomes a way of delaying a decision the wound itself will eventually force.

Is a skin graft ever appropriate for a pressure sore? Rarely, and only when the wound bed is muscle or well-vascularised granulation tissue with no exposed bone — most sacral, ischial, and trochanteric sores don't meet that bar, which is why flaps are the more common answer there.

What tells you a flap has actually succeeded versus just survived surgery? The first 5 to 7 days confirm viability of the tissue itself. Whether it succeeds long-term depends on the following months — consistent offloading, nutrition, and whether the household can sustain the repositioning routine we agreed on before surgery.

Bring the Wound, Not Just the History

If you're standing in front of a relative's wound trying to work out whether this is a wait-and-dress situation or a plan-the-surgery situation, that judgment genuinely needs eyes on the tissue, not just a description over the phone. Bring recent photographs if you have them, and if you can, bring a timeline of how the wound has changed rather than just how long it's been open — that detail changes the conversation more than almost anything else you could tell Dr. Gandhi at the first visit.