Types of Bunion Surgery: Which Procedure Is Right for You?

"Bunion surgery" is not one operation. It is a family of procedures that correct different problems, and the bump on the side of your foot is usually the symptom rather than the cause. Choosing between them comes down to where the deformity actually originates, how severe it is, and whether the joint itself is still healthy. Here is what each procedure does and who it suits.

First, what a bunion actually is

A bunion (hallux valgus) is not a growth of extra bone. It is a change in alignment: the first metatarsal drifts away from the second, and the big toe leans toward the smaller toes in response. The prominence you can see is the head of that displaced metatarsal pushing against the skin.

That distinction drives every surgical decision. Removing the bump without correcting the alignment behind it leaves the mechanics that created it fully intact, which is the single most common reason bunions come back. If you are still deciding whether you need surgery at all, start with our page on bunions, because most bunions never need operating on.

The procedures

1. Osteotomy

The workhorse of bunion correction. The surgeon cuts the first metatarsal, shifts the bone into proper alignment, and fixes it with small screws or plates. Variations differ by where the cut is made: nearer the head of the bone for milder deformities, further back for more severe ones, which allows a greater correction.

Suits: mild to moderate deformity with a healthy joint. Recovery: about six weeks in a surgical boot, often with protected walking early.

2. Lapidus procedure

Instead of cutting the metatarsal, this fuses the joint at its base, where the metatarsal meets the midfoot. It exists because in many patients that joint is unstable, and that instability is what lets the metatarsal drift in the first place. Fusing it removes the cause rather than compensating for it.

Suits: severe deformity, hypermobility at the base joint, or a bunion that has already recurred after previous surgery. Recovery: longer, typically 8 to 12 weeks with a period of limited weight-bearing while the fusion sets. Lapiplasty is a proprietary system for performing this correction in three planes.

3. Arthrodesis (fusing the big toe joint)

Here the big toe joint itself is fused. That permanently removes motion at the joint, which sounds drastic and is: it is chosen when the joint is already destroyed by arthritis and motion is a source of pain rather than function. Patients walk well afterwards, though push-off changes and high heels become impractical.

Suits: severe arthritis of the big toe joint, rheumatoid deformity, or salvage after failed prior surgery. If arthritis rather than alignment is your main problem, see our guide to arthritis in the foot and ankle.

4. Exostectomy (shaving the bump)

Removing the prominent bone only, leaving alignment untouched. Rarely appropriate on its own, precisely because it treats the visible symptom and leaves the cause. It has a place combined with other corrections, or occasionally for a patient whose complaint is purely pressure from the bump against footwear with no underlying misalignment.

5. Minimally invasive bunion surgery

An osteotomy performed through incisions of a few millimetres, using specialised burrs and guided imaging rather than opening the foot. Less soft tissue disruption means less swelling, smaller scars and often quicker early mobility.

Suits: mild to moderate deformity in the right hands. It is a technique, not a different correction, and it is not automatically the better option; the choice still has to match the deformity.

How the decision actually gets made

Weight-bearing X-rays are the deciding input, because a bunion measured while lying down understates itself. From those we measure the angle between the first and second metatarsals and the angle of the toe, then assess three things:

• Severity. Mild deformities are well served by osteotomy. Severe ones usually need correction further back in the foot.
• Stability at the base joint. If that joint is hypermobile, an osteotomy alone tends to drift back over time. This is the Lapidus question.
• Condition of the joint surface. A healthy joint gets realigned and preserved. A worn-out one may be better fused, because realigning a painful arthritic joint leaves you with a straight toe that still hurts.

Your own priorities matter too, and they are legitimate inputs rather than an afterthought. A teacher on their feet all day and a retiree who plays tennis twice a week have genuinely different calculations about a twelve-week recovery.

What recovery involves, honestly

Bunion surgery is outpatient, so you go home the same day. The first week is elevation and ice, and that part is genuinely restrictive. Bone needs about six weeks to knit no matter which procedure was used, which is why the boot outlasts the pain by a wide margin. Swelling is the surprise for most patients: it settles enough for normal shoes in two to three months, but mild end-of-day swelling can persist for six months to a year, and that is normal rather than a sign something is wrong.

Nearly all correction is done under regional block with sedation rather than general anaesthesia, and the block usually covers the first day comfortably.