Bunion (Hallux Valgus) Surgery: Why Nicotine Use Matters More Than You Think

If you’re considering bunion (hallux valgus) surgery, you’re probably focused on pain relief, recovery time, and getting back into your shoes. But here’s a crucial twist many patients overlook: nicotine use — including non-tobacco sources like vapes, patches, and pouches — can significantly increase the risk of complications after surgery. A new multicentre analysis has put fresh numbers behind a concern we discuss with patients every week in clinic.

Key Takeaway: Nicotine and Non-Tobacco Nicotine Increase Postoperative Risks

A recent retrospective comparative study using the TriNetX Global Health Research Network found that patients using nicotine or non-tobacco nicotine products had higher rates of complications within 90 days of bunion surgery compared with matched non-users. Complications included wound problems, infections, stroke, pneumonia, renal failure, and higher emergency department attendance, alongside greater opioid-related issues. Source: PubMed | DOI

What Did the Study on Hallux Valgus Surgery Show?

Study Design at a Glance

• Population: Adults (18+) undergoing hallux valgus correction.
• Exposure groups: Nicotine users (e.g., smoking), non-tobacco nicotine users (e.g., vaping, patches, pouches), and non-users.
• Method: Propensity score matching to balance baseline characteristics; outcomes assessed within 90 days post-op.
• Level of Evidence: III (retrospective comparative study).

Complications Observed

• Higher rates of infection and wound disruption.
• Systemic complications: increased risk of stroke, pneumonia, and renal failure.
• Greater healthcare utilisation: more emergency department visits.
• Higher incidence of opioid-related disorders postoperatively.

While exact effect sizes were not provided in the abstract, the direction of risk was clear across both traditional nicotine and non-tobacco nicotine users, underscoring that it’s the nicotine itself — not just smoke — that is problematic.

Why Nicotine Affects Bunion Surgery Outcomes

From a surgical perspective, nicotine impairs blood flow (through vasoconstriction), reduces oxygen delivery, and disrupts cellular processes essential for healing, including fibroblast activity and collagen formation. These mechanisms help explain why we see more wound breakdowns and infections in nicotine users after bony procedures like bunion correction, where soft tissue and bone healing are both critical.

Evidence Beyond This Study

• Smoking is consistently associated with higher surgical site infection and delayed union in orthopaedics and foot and ankle surgery broadly, not just bunion procedures. For example, the UK government’s review notes smoking increases postoperative complications across specialties (Public Health England).
• E-cigarettes still deliver nicotine that impairs vasculature and wound repair; recent reviews highlight similar biological effects on healing pathways (NIH/PMC).

What This Means If You’re Planning Bunion (Hallux Valgus) Surgery

Concise Answer for Patients

Stopping nicotine — including vaping and nicotine replacement — before bunion surgery reduces your risk of wound problems, infections, systemic complications, and unplanned hospital visits. The safest approach is to be nicotine-free in the weeks before and after surgery.

Our Practical Preoperative Playbook

1. Target a nicotine-free period of at least 4–6 weeks before surgery and 4–6 weeks after. Many centres aim for 6 weeks pre-op to allow microvascular recovery.
2. Use non-nicotine cessation aids where possible (e.g., varenicline if appropriate; behavioural support).
3. Confirm abstinence when required (some units perform cotinine testing preoperatively).
4. Optimise the rest: good nutrition, diabetes control (if applicable), and vitamin D sufficiency all support bone and soft-tissue healing.

Frequently Asked Questions

Is vaping “safer” than smoking for bunion surgery?

Not for surgical healing. This study and broader evidence indicate nicotine itself raises risks. Vaping still delivers nicotine that impairs blood flow and tissue repair.

Can I use nicotine patches or gum instead?

Nicotine replacement therapy still introduces nicotine. If you can, favour non-nicotine strategies around the surgical window. Discuss tailored cessation plans with your clinician.

How long should I quit before surgery?

We generally advise at least 4–6 weeks before and after. Longer is better. Your surgical team will personalise this based on your health and the planned procedure.

What are the main complications we’re trying to avoid?

• Wound breakdown and infection.
• Systemic issues such as pneumonia, stroke, and renal complications (as highlighted in the study).
• Unplanned emergency visits and higher likelihood of postoperative opioid-related issues.

The Bottom Line from Harley Street

Bunion (hallux valgus) surgery can be transformative, but outcomes hinge on the fine details — and nicotine is a big one. The latest multicentre data show higher complication rates in both smokers and non-tobacco nicotine users after bunion surgery (PubMed | DOI). In our view, a structured, nicotine-free window around surgery is one of the simplest ways to tip the odds in your favour. If you’re preparing for surgery, let’s plan cessation early and stack the deck for a smooth recovery.

Selected References

• Foot Ankle Surg. 2025: Nicotine and non-tobacco nicotine use increase postoperative complications after hallux valgus surgery. PubMed | DOI
• Public Health England: Smoking and the NHS — postoperative risks and service considerations. Link
• Review on e-cigarettes and wound healing mechanisms. NIH/PMC

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