Key Pointers:
- Minimally invasive (keyhole) bunion surgery realigns the toe joint using small incisions and specialised instruments.
- It aims to correct bone alignment while reducing soft-tissue disruption.
- Patients often experience smaller scars and faster functional recovery compared to traditional open surgery.
- Not everyone is suitable; suitability depends on bunion severity and bone structure.
- A proper medical assessment is essential to decide if this option is appropriate.
What Happens During Minimally Invasive Bunion Surgery?
In minimally invasive bunion surgery, the orthopaedic or foot surgeon makes a few tiny incisions (often less than one centimetre) instead of a single large cut. Through these keyholes, fine instruments and burrs are used to make precise bone cuts (osteotomies) to realign the big-toe joint.
The realigned bone is usually secured using small screws to maintain proper alignment while it heals. Because the surrounding tissues are less disturbed, post-operative swelling and stiffness can sometimes be milder compared to traditional open surgery.
How Is It Different From Traditional Bunion Surgery?
Traditional surgery requires a longer incision along the side of the foot, which allows direct visualisation of the joint. Minimally invasive techniques rely on guided imaging (fluoroscopy) to perform the correction through smaller openings.
Both methods aim for the same end goal, restoring normal alignment of the big toe, but the approach, incision size, and post-surgical recovery process differ. Your doctor will recommend the technique that best fits your bunion’s severity and your overall health.
Who Is a Good Candidate for Minimally Invasive Surgery?
Not everyone with a bunion needs surgery, and not every bunion can be treated using a keyhole approach. This option may be considered if you have:
- Moderate bunions that have not improved with footwear modification or splints
- Persistent pain during walking or activity
- No severe joint arthritis or deformity that would require open correction
Assessment usually includes X-rays to evaluate the angle of deformity and bone condition before deciding on the surgery type.
What Is the Recovery Timeline Like?
Recovery duration varies by patient, but in general:
- First few days: Keep weight off the foot and elevate it to reduce swelling.
- 1–2 weeks: Follow-up visit to check wound healing; some patients begin partial weight-bearing with a post-operative shoe.
- 4–6 weeks: Gradual return to comfortable walking.
- 3 months and beyond: Most patients resume normal footwear and activities, though mild stiffness can persist for a while.
Rehabilitation exercises or physiotherapy may be advised to restore flexibility and strength.
Are There Any Risks or Limitations?
As with any surgery, possible risks include infection, delayed bone healing, and under- or over-correction. While minimally invasive methods reduce incision size, they still involve bone cutting and fixation, which require healing time.
Your surgeon will discuss potential risks and the expected outcome before proceeding.
FAQs About Minimally Invasive Bunion Surgery
Q1: Does minimally invasive bunion surgery hurt less?
Pain levels vary, but smaller incisions may reduce soft-tissue irritation. Pain medication and elevation help manage discomfort during recovery.
Q2: Will my bunion come back after surgery?
Recurrence can occur if underlying biomechanical issues persist, though proper realignment and post-operative care lower the risk.
Q3: How soon can I walk after minimally invasive bunion surgery?
Some patients can bear limited weight in a special shoe within the first week, depending on the surgeon’s instructions.
Q4: Are stitches always needed?
Tiny incisions may require only a few stitches or none at all, depending on the approach used.
Q5: Is minimally invasive bunion surgery done under general anaesthesia?
It can be performed under regional (ankle block) or general anaesthesia, depending on your comfort and medical condition.
Minimally invasive bunion surgery represents an evolving approach to foot correction, offering smaller incisions and quicker recovery for selected patients. Still, success depends on proper assessment, precise technique, and diligent follow-up care.
Book an Appointment for Your Foot Health
If bunion pain is affecting your mobility or footwear comfort, a professional evaluation can help determine whether minimally invasive bunion surgery is suitable for you.
📍 Mash Spine & Orthopaedics, Farrer Park Medical Centre
📞 Call +65 6518 9545 or Book a Consultation Here
