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Surgery · Treatment

Minimally Invasive Foot Surgery: The Walk-In, Walk-Out Standard

Most of this practice exists to keep you out of surgery — laser, shockwave, orthotics, and regenerative injections resolve the majority of foot pain we see. But when a bone must truly be realigned, the operation itself should disturb as little of you as possible. That’s minimally invasive surgery (MIS), and it’s what Dr. Ahn is known for.

What “minimally invasive” actually means

Instead of opening the foot with a long incision, the surgeon works through openings measured in millimeters — inserting fine, specially designed instruments with live X-ray (fluoroscopic) guidance. The surgical field is barely exposed, so the tissue around the correction is left essentially undisturbed.

The technique isn’t new — Dr. Morton Polokoff pioneered sub-dermal foot surgery in 1945 — but decades of refinement turned it into today’s state of the art. It’s also genuinely specialized: safe MIS requires extensive training, continuing education, and fellowship within the ambulatory foot surgery community. Dr. Ahn is a Fellow of the Academy of Ambulatory Foot & Ankle Surgery, an international body of more than 2,000 physicians dedicated to exactly this approach — and he has taught these techniques to other surgeons.

What it treats

Bunions, hammertoes, stiff big toe, painful calluses, bone spurs, heel pain that has failed every conservative measure, and select diabetic foot problems. Whether your case is an MIS case is what the exam and X-rays decide.

Why patients choose it

What recovery looks like

You wear a bulky dressing for the first week, with a re-dress visit a few days after surgery. At one week, the dressing steps down to bandage strips, a toe separator, and a daily self-changed wrap for three to four weeks. Return to regular shoes tracks your individual healing and swelling — and because you’re walking from day one, “recovery” looks less like convalescing and more like easing back up to speed.

Surgery remains our last resort. But if your foot has earned it, this is the version of surgery worth having.

Sources

Common questions

Am I awake during minimally invasive foot surgery?
Yes — and that's a feature. Careful local anesthesia puts only your foot to sleep, avoiding the risks and grogginess of general anesthesia. It also opens surgery to patients whose health history would make traditional surgery riskier.
How big is the incision, really?
For a bunion correction, the working incisions are under 3 millimeters — about the width of a grain of rice. Compare that to the 5–6 centimeter incision of traditional bunion surgery. Smaller openings mean less tissue disturbed, less pain after, and often no stitches at all.
Will I need crutches, screws, or a cast?
Usually none of the three. Minimally invasive technique typically stabilizes corrections with a precise external compression dressing and splinting instead of implanted screws or plates, and patients walk out the same day in a surgical shoe rather than going non-weight-bearing on crutches.
Is minimally invasive surgery as effective as open surgery?
For appropriate cases, yes. Published trials report less pain in the early recovery period and shorter operating times, and studies that follow patients out to a year find the correction holds up about the same as open surgery. Case selection is the key, which is why every surgical decision here starts with an exam, X-rays, and an honest conversation about whether you need surgery at all.

Wondering if this is
what your foot needs?

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