Bunions are a common foot deformity of the big toe.
The medical term for a bunion is Hallux Valgus.
This is often an inherited condition.
Footwear does not directly cause bunions but may contribute.
Bunions can occur in adolescence or develop as you get older. The deformity of a bunion tends to worsen over time.
What symptoms do bunions cause?
Bunions can cause painful rubbing over the bony prominence in footwear. This makes finding footwear difficult and may limit activities. They can also be associated with pain elsewhere in the foot due to altered weight bearing caused by the big toe deformity.
What is the non-surgical treatment?
You can try shoe modification with wider shoes to limit the rubbing.
Splints and spacers may be helpful when worn to prevent rubbing. They will not correct the deformity permanently or prevent progression.
What is the surgical treatment?
Surgery is the most reliable and permanent way to correct your bunion.
There are many operations used for bunion correction.
- Scarf Akin Osteotomy
- Minimally Invasive Bunion Correction
- Tarsometatarsal (Lapidus) Fusion
The Scarf Akin osteotomy is the most commonly performed surgery and avoids many of the problems associated with other bunion operations.
The specific surgery best suited for your foot requires assessment by Mr Curry.
What does a Scarf Akin Osteotomy involve?
The Scarf Akin osteotomy procedure comprises 5 parts:
- An incision over the inside of the big toe is made. The tissues holding the big toe are released.
- The bony prominence from the metatarsal is removed.
- The metatarsal bone is cut (Scarf osteotomy) to realign the joint. This is fixed with 2 screws.
- The proximal phalanx bone is then cut (Akin osteotomy) to complete the correction. This is held with a screw.
- The final part of the operation is to repair and tighten the capsule where the bunion has stretched it. This helps to prevent recurrence.
What is the success rate?
90% of patients achieve a successful outcome after bunion surgery.
What does the rehabilitation involve for a Scarf Akin osteotomy?
- You are in hospital 1 night for one foot or 2 nights for both feet
- For the first 2 weeks you should keep your feet elevated as much as possible to minimize swelling
- Optional use of a bunion sleeve for swelling
- You are able to begin weightbearing immediately in a stiff soled post operative shoe which is worn for 4-6 weeks.
- By 6 weeks you will be wearing wide or open shoes and should be comfortable walking around your house.
- By 3 months you will be beginning to wear normal shoes and returning to recreational walking.
- Swelling can take 6-9 months to resolve and tight shoes may be difficult for this period.
What if I have both feet corrected?
Recovery time is 50% longer when you have both bunions corrected at the same time.
How long will I be off work?
This is dependent upon your occupation:
- Seated job 3-4 weeks
- Standing job 6-8 weeks
- Heavy lifting job 8-12 weeks
When can I drive?
No driving for 6 weeks
Left foot no driving for 2 weeks
Right foot no driving for 6 weeks
What are the risks of the procedure?
General risks of surgery:
- Infection and wound healing problems
- Nerve injury and scar sensitivity
- Blood clots to the leg
- Anaesthetic problems
- Incomplete resolution of symptoms
Specific risks for bunion surgery:
- Recurrence of deformity
- 1% chance per year
- 10% over your lifetime
- Recurrence is never as bad as the original deformity and often doesn’t require surgery.
- Under or overcorrection of the toe
- Pain if arthritis is present
If you have any questions please contact Mr. Curry’s rooms on 9928 6560.