What Happens After Big Toe Fusion Surgery?

Big toe fusion surgery permanently locks the joint at the base of the big toe into a fixed position, eliminating the arthritic pain that made walking miserable but also eliminating all motion at that joint. In the weeks and months that follow, the bone heals across the joint space, your foot gradually adapts to a new way of pushing off the ground, and pain scores drop substantially. The trade-off between pain relief and lost motion is the central tension of recovery, and it plays out differently depending on everything from your surgeon’s technique to whether you smoke.

The First Days and Weeks

Traditionally, patients were kept off their feet entirely for about six weeks after the surgery, followed by a period of protected walking in a boot or postoperative shoe. That prolonged non-weight-bearing period carries real downsides: muscle wasting, weakened bone from disuse, and a higher risk of blood clots. More recently, some surgeons have moved toward allowing full weight-bearing almost immediately, provided the hardware used is sturdy enough to handle it. A retrospective review of patients who walked right away on a locked-plate-and-screw construct found that clinical healing occurred at an average of about six weeks, with radiographic fusion visible around seven weeks and a union rate of 96%.¹ That doesn’t mean everyone gets the green light to walk immediately; your surgeon’s protocol depends on what fixation they used, the quality of your bone, and whether any additional procedures were done at the same time.

In the early days, swelling and stiffness in the forefoot are the norm. Most people wear a stiff-soled surgical shoe or a below-the-knee boot regardless of how soon they’re allowed to put weight on the foot. Keeping the foot elevated as much as possible helps with swelling, and ice packs over a thin barrier can take the edge off. Stitches or staples typically come out around two weeks, and by that point you’ll likely have your first set of follow-up X-rays to check that the hardware is holding and the bones are in good position.

How the Bone Heals and What Can Go Wrong

The goal of the surgery is for new bone to grow across the old joint space, fusing the two bones into one solid unit. In most studies, that happens in the vast majority of cases. One systematic review of arthrodesis outcomes reported a fusion rate of about 98.6% across the cases it examined.² Individual studies show some variation: a ten-year retrospective cohort of over 400 patients found a nonunion rate of 6%, while a smaller study focused on different fixation methods reported nonunion in about 12% of cases.³⁴ The type of hardware matters here: patients in the smaller study who received plate-and-screw fixation had an 86% union rate, compared to 78% for crossing screws alone.

Nonunion means the bone never fully bridges. Sometimes a fibrous connection forms that is painless and stable enough that it doesn’t require additional surgery, a situation sometimes called a “fibrous union.” Other times, the site remains painful and mobile, and a revision procedure is needed. Wound complications are another concern: in the large ten-year cohort, about 8% of patients had wound-related problems.³ Superficial infections that respond to antibiotics and temporary nerve numbness along the top of the toe are among the more commonly reported minor complications.⁵

Pain Relief and Satisfaction

Pain is typically the reason people agree to give up motion in the first place, and on this front the surgery delivers for most patients. Pain scores drop significantly from pre-surgery levels, and the improvement holds at one and two years out.⁶ A prospective assessment of great toe fusion found substantial improvements not just in pain but also in quality of life and overall physical function, with patients undergoing an isolated fusion (no additional procedures at the same time) tending to show the largest gains.⁷

Long-term satisfaction data reinforces the picture. In a study of patients with severe hallux rigidus who were followed for years after their fusions, roughly 72% described themselves as very satisfied and another 18% as satisfied. Functional outcome scores nearly doubled from before surgery to after.⁸ That means about 90% of patients were in the satisfied-to-very-satisfied range, which is a strong result for any elective orthopedic procedure. Still, the remaining 10% is worth thinking about. Some people find the stiffness harder to adapt to than expected, and for a minority, ongoing pain or complications prevent the outcome they hoped for.

How Walking Changes After Fusion

This is the part that concerns people most, and it’s worth understanding in practical terms. When you walk normally, your big toe bends upward as your heel lifts, allowing you to push off efficiently. After fusion, that bend is gone. Your foot has to find workarounds, and gait studies show exactly how it compensates.

Research using motion analysis and pressure sensors found that after fusion, the hindfoot rotates inward more during the push-off phase, and the forefoot adjusts its position to make up for the locked toe.⁹ The pressure under the big toe drops, which makes sense because the toe can no longer grip the ground and flex as part of push-off. In turn, the lesser metatarsals, meaning the ball of the foot under toes two through five, pick up more of the load with higher peak pressures.⁹ This redistribution is one reason some patients develop what’s called transfer metatarsalgia, a dull ache under the ball of the foot from bones that are now bearing more than their usual share.

Separate gait analysis found a slightly shorter step length on the fused side and some loss of ankle push-off power and torque.¹⁰ In day-to-day life, many people describe this as a subtle stiffness in their gait rather than a limp. Most adapt over time and don’t notice it once they’ve built new movement patterns. But the biomechanical changes are real, and they matter more if you’re a runner, a dancer, or someone whose activities demand explosive push-off from the forefoot.

Getting Back to Exercise and Sports

One of the most common fears is that fusion means the end of an active lifestyle. The evidence is more reassuring than most people expect. A study that tracked patients after fusion found they were back in a fracture boot within an average of about four days, transitioned to an athletic shoe at a mean of roughly six weeks, and returned to full unrestricted activity at a mean of about 13 weeks. Every patient who had been active in sports before surgery resumed participation, and there was actually a trend toward increased sports activity afterward.¹¹

That said, “return to sports” covers a wide range. Walking, cycling, swimming, and gym-based training tend to be straightforward because they don’t demand the same toe flexibility as running or court sports. Running is possible for many people after fusion, though the altered push-off mechanics mean your stride may feel different, and some runners find that the shifted pressure under the ball of the foot limits their distance or intensity. High-heeled shoes are a frequent concern too: because the toe can no longer bend, very high heels that force dorsiflexion at the big toe joint are essentially impossible. A low or moderate heel, however, is usually fine.

Why Toe Position Matters

One detail that has an outsized effect on daily life is the angle at which the surgeon sets the toe during the procedure. The standard aim is to fix the toe in a slight upward tilt, roughly five millimeters off the floor, with a small amount of outward angle. That slight dorsiflexion is critical. If the toe is fused too flat, it drags during the push-off phase of walking, creating pain under the tip of the toe and interfering with shoe fit. If it’s angled too far upward, it presses against the top of the shoe and shifts even more pressure to the lesser metatarsals.

Getting it right is more art than science. Surgeons typically check the position intraoperatively by simulating a foot-flat and a heel-rise stance to make sure the toe clears the floor but doesn’t stick up excessively. Even a few degrees off can affect comfort years later, which is one reason outcomes vary between surgical teams. If you’re considering the procedure, asking your surgeon about their preferred alignment and how they verify it during surgery is a reasonable question.

Hardware Removal and Irritation

The screws, plates, or both that hold the bones together while they heal are designed to stay in permanently. Most of the time, you never think about them again. But in some patients, hardware becomes a source of irritation. The most common complaint is discomfort over a prominent screw head, especially on the top of the foot where there’s very little padding between skin and bone. One systematic review found that pain from hardware was the most frequently reported complication following arthrodesis.²

When hardware does need to come out, it’s usually a straightforward procedure. In one comparative study, two patients required hardware removal, which was done in the office under local anesthesia.¹² That’s not always the case, and some patients do require a trip back to the operating room, but the point is that hardware removal when needed is generally a minor intervention, not a major second surgery.

Risk Factors That Affect Your Outcome

Smoking is the single most well-documented lifestyle factor that works against successful healing after foot and ankle surgery. Smokers have lower bone mineral density, slower fracture healing, higher rates of wound complications, more postoperative pain, and lower overall satisfaction compared to non-smokers.¹³ If you’re a smoker considering fusion, quitting before surgery is one of the highest-impact things you can do for your recovery.

Interestingly, some factors you might assume would cause trouble don’t reliably show up in the data. One case-control study looking at nonunion after elective foot and ankle reconstruction found no statistically significant differences in nonunion rates based on age, sex, tobacco use, body mass index, or the specific procedure performed.¹⁴ That doesn’t mean these factors are irrelevant, but it does suggest that the relationship between patient characteristics and nonunion is more complex than any single variable. Diabetes, peripheral vascular disease, and medications that suppress bone turnover are other factors surgeons consider, even if isolated studies don’t always isolate them as independent predictors.

Prior surgery on the same joint also shapes what you can expect. Patients who had already undergone a cheilectomy, a joint-preserving procedure that shaves off bone spurs, before converting to fusion tended to start from a worse baseline and had somewhat lower physical function scores after fusion compared to patients who went straight to fusion. However, the amount of improvement from pre-op to post-op was similar in both groups, and there were no differences in nonunion or infection rates.¹⁵ The takeaway: if a cheilectomy didn’t solve the problem and you need a fusion, the fusion still works, but your starting point may be lower.

How Fusion Compares to Joint Replacement

Many patients ask whether a joint replacement might be a better option, since it promises to preserve motion. The comparison has been studied from several angles, and the picture is nuanced.

At long-term follow-up of 15 years, patients with a fusion experienced less pain and higher satisfaction than those who received a total joint arthroplasty, with no functional differences between the groups. The arthroplasty group had more revision surgeries.¹⁶ A systematic review reinforced these findings, noting that metallic total joint replacements, while sometimes producing excellent early scores, suffered from significant revision rates due to loosening of the implant over time, with one system reporting 37% revisions in its longest follow-up series. A synthetic cartilage implant fared somewhat better early on, but still saw roughly one in five patients need implant removal and conversion to fusion.²

Not all the data favors fusion, though. A comparison of a newer-generation total joint replacement against fusion found that patients in the replacement group had higher functional outcome scores and a more natural pressure pattern under the first metatarsal head, essentially walking more normally. The replacement group had fewer revisions in that particular study, and they retained an average of about 36 degrees of dorsiflexion and 14 degrees of plantarflexion, motion that fusion patients simply don’t have.¹⁷ The catch is durability: joint replacements in the big toe have historically struggled with longevity, and what works well at three to four years of follow-up may not hold up at fifteen. Fusion, by contrast, is a permanent solution. Once the bone has healed, it’s done. The question of which is better for you depends heavily on your age, activity level, and how much you value preserved motion versus long-term predictability.

The Interphalangeal Joint After Fusion

One thing that gets less attention is what happens to the joint just beyond the fusion site, the interphalangeal (IP) joint of the big toe. With the base of the toe locked, the IP joint can end up taking on compensatory motion it wasn’t designed for. Over time, some patients develop arthritis or pain at that joint. In the study of patients who had a prior cheilectomy before fusion, more patients in that group reported IP joint pain compared to those who went directly to fusion.¹⁵ Whether this was due to the longer disease history, altered mechanics from the earlier surgery, or simply the additional stress on a neighboring joint is hard to tease apart. But it’s worth knowing that pain can migrate to the next joint down the line, even when the fusion itself is solid and successful.

This secondary joint stress ties into the broader gait changes already described. When the big toe can’t bend, the foot compensates through the ankle, the midfoot, and the smaller toes. Most of those compensations are well tolerated. Occasionally, though, the redistribution creates a new problem where there wasn’t one before. Custom orthotics with a stiff forefoot rocker or a curved-sole shoe can help unload both the lesser metatarsals and the IP joint, and many surgeons recommend them as a routine part of life after fusion rather than waiting for problems to develop.