Minimally invasive bunion surgery

What “minimally invasive” means

Open bunion surgery uses one incision long enough to see the big toe joint and cut the bone in direct view. Minimally invasive surgery uses:

• Small incisions, defined by researchers as about 2 cm (under an inch) at most.^[4]
• A burr instead of an open saw cut. A narrow burr cuts the first metatarsal near the big toe joint so its head can be shifted straighter.^[5] Some techniques add a second small cut in the bone of the big toe (an Akin osteotomy).^[8,9]
• Live X-ray guidance (fluoroscopy), because the bone is not in direct view.^[1,2]
• Screws, usually one or two, to hold the bone while it heals.^[3]

“Minimally invasive” describes the size of the incisions, not the size of the job. It is usually same-day surgery.^[3] For small-incision surgery elsewhere in the foot and ankle, see minimally invasive foot surgery.

Who is a good candidate, and who isn’t

Any bunion operation is for a bunion that hurts and limits walking, daily activities or shoe wear despite non-surgical care. It is not done to change how the foot looks.^[7,10]

Swipe sideways to see the whole drawing.

A minimally invasive approach may suit you if:

• your bunion is mild to moderate^[6,11]
• the big toe joint doesn’t have painful arthritis, and the joint at the base of the first metatarsal is stable^[9]

A different operation may be safer if the big toe joint has painful arthritis (see big toe arthritis surgery) or the joint at the base of the first metatarsal is unstable.^[9,11] A clinical guideline also advises caution when the bone is very weak (severe osteoporosis) or the bunion comes with another marked deformity of the forefoot.^[11] In these feet, your surgeon may recommend an open operation instead (see bunion surgery).

Newer techniques are also used for some severe bunions, with good results in a review of seven studies, but the evidence is limited.^[12] Smoking and poorly controlled diabetes raise the risk of wound and healing problems, so they are addressed before any operation.^[13,14]

The decision weighs the size of the deformity on standing X-rays, your examination, your age and your activity level.^[3,10] For how a bunion is evaluated, see bunions.

Minimally invasive vs. traditional bunion surgery

What the research shows:

• Reviews. A meta-analysis of controlled studies (395 feet) found no clinically important difference in function, pain, alignment or complications. Its authors thought weaknesses in the studies likely inflated the benefits, and did not recommend it over traditional surgery.^[4] A 2026 meta-analysis of the minimally invasive chevron technique (352 feet) also found comparable results. Early pain scores favored minimally invasive surgery and one X-ray angle favored open surgery, but the differences were small and unlikely to matter clinically.^[5] An earlier meta-analysis found similar X-ray correction but better function scores after open surgery.^[6]
• Randomized trials. One, of 40 feet, found better wound healing at six weeks with minimally invasive surgery and similar results at one year; complications occurred in 15% of each group, and none were serious.^[8] Another found equivalent results, a shorter operation and less pain right afterward, but about 14 times more radiation, which the authors called a small increase.^[2]

The American Academy of Orthopaedic Surgeons notes that minimally invasive bunion surgery is not yet widely accepted and that more long-term research is needed.^[7] In short, it is a reasonable option for the right foot, not a proven upgrade for every bunion.

Recovery timeline

Plans vary with the operation and your healing. A typical outline:

• Day of surgery. You usually go home the same day, with a dressing that holds the toe in position. Keep the foot raised and use ice as directed.^[7]
• First two weeks. Keep the dressing dry and undisturbed. Stitches usually come out at about two weeks.^[7]
• Walking. Some bunion operations allow walking right away in a special surgical shoe; others need time without weight on the foot.^[7] In one well-described minimally invasive technique, a stiff-soled shoe allows adapted weight-bearing for the first six weeks, and toe movement starts right away.^[9]
• Six to twelve weeks. The foot usually needs support from dressings or a brace for 6 to 12 weeks.^[7] Your surgeon will tell you when you can move into roomy everyday shoes.
• Six months to a year. Full recovery often takes up to six months, and some swelling is common for six months to a year.^[7]

Minimally invasive surgery may bring less early swelling and a faster early recovery; long-term results are similar.^[3] Driving may be restricted until the bone has healed, especially after surgery on the right foot.^[7] See preparing for foot and ankle surgery and recovery after foot and ankle surgery.

Risks

The main risks of bunion surgery, minimally invasive or open, are infection, nerve injury, pain that doesn’t go away, bone that doesn’t fully heal, stiffness of the big toe joint, and the bunion coming back.^[7] Across 229 studies of bunion surgery in general, about 11% of patients were dissatisfied and the deformity recurred in about 5%.^[15]

Points specific to the minimally invasive approach:

• More X-ray exposure during the operation.^[2]
• Injury to nearby tissues. Because the surgeon cannot see the tissues directly, nerves, blood vessels or tendons near the small incisions can be injured, and heat from the burr can damage skin or bone. Specific training and cooling fluid help prevent this.^[9,11]
• No clear difference in complications. Reviews comparing the two approaches found no significant difference in complication rates.^[4,5] A review of 766 feet treated with the newer minimally invasive chevron technique, without a comparison group, found complications in about 21%, most often a second operation, infection, recurrence or nerve injury. The authors judged this comparable with open surgery.^[16]
• A learning curve. In a review, the three studies that measured it found that surgeons needed 27 to 40 of these operations (about 36 on average) to reach the plateau of the learning curve. Early operations took longer and used more X-ray, though outcomes were not clearly worse in these small studies.^[17] Other reviewers warned that patients could be harmed while surgeons learn.^[4]
• A possible change of plan. The surgeon may occasionally need to switch to a larger incision during the operation.

If burning, shooting or electric pain continues after any foot surgery, our sister practice, Lower Extremity Nerve Institute (external site), evaluates nerve pain after surgery.

Questions to ask your surgeon

• Is a minimally invasive approach right for my bunion, or would an open operation be safer? Why?
• How often do you perform this technique?
• Will I walk in a surgical shoe, and for how long?
• Is there a chance you will switch to an open incision?
• When can I drive, return to work and wear regular shoes?

Dr. Efe Ozturk, DPM, is a Foot and Ankle Surgeon who is double board certified, as a Diplomate of the American Board of Podiatric Medicine (DABPM) and a Fellow of the Academy of Physicians in Wound Healing (FAPWH). He completed a three-year surgical residency in forefoot and rearfoot reconstructive surgery. At a consultation, he examines your foot, reviews standing X-rays and explains which option, if any, makes sense for you, and why. To arrange one, request an appointment.

If you are not ready for surgery, our parent practice, Ozturk Foot & Ankle (external site), explains non-surgical bunion care, such as wider shoes, pads, spacers and inserts.

Common questions

Is minimally invasive bunion surgery better than traditional surgery?

Not as a rule. In most studies, results at one year and beyond are similar, although one earlier meta-analysis found better function scores after open surgery. Its advantages are mostly early ones, such as less early pain or better early wound healing in some trials.^[4,5,8,6]

How long is recovery after minimally invasive bunion surgery?

Expect 6 to 12 weeks of support and up to six months for full recovery, with some swelling for longer. Early recovery may be a little faster than after open surgery.^[7,3]

Can I walk after minimally invasive bunion surgery?

It depends on the operation. At least one well-described minimally invasive technique allows walking in a stiff-soled surgical shoe from the start, but some operations need time without weight on the foot.^[7,9]

Can a bunion come back after minimally invasive surgery?

Yes. Recurrence is possible after any bunion operation, including minimally invasive ones.^[15,16] Going back to tight, narrow shoes can also make a bunion return.^[7]

Does insurance cover minimally invasive bunion surgery?

Coverage varies by plan and by procedure. Ozturk Foot & Ankle participates with many major insurance plans; contact our office or your insurance carrier to confirm your benefits before surgery.

When to seek care