Hallux Valgus Bunion Surgery Information

Hallux Valgus

A bunion is the prominence at the base of your big toe. Often the big toe deviates towards the lesser toes. It is caused by abnormal bone alignment, called Hallux Valgus. The time to consider surgery is when there is pain and/or difficulty fitting shoes and all other treatments have failed.

The Surgery

You will have a general anaesthetic and local anaesthetic. An incision is made over the bunion. The bones are cut, re-aligned and fixed in place again with small screws. The ligaments often also need to be rebalanced, through a separate incision in the first webspace. Everything is checked with Xray before the wounds are sutured and a dressing is applied.

Post-Operatively

You can walk on the foot with a surgical shoe as soon as you are awake. Crutches are optional. You will need to keep the foot elevated as often as possible, this is to control swelling and pain. You may need to take medication to control pain. You should keep the bandages dry and clean until your first post-operative clinic visit.

  • Activity
  • Timeframe (approximate)
  • Walk with surgical shoe/sandal
  • 6 wks
  • Walking in wide shoes
  • 6 wks– 3 mts
  • Most activities and shoes
  • 3 – 6 mts
  • Full Recovery
  • Up to 12 mts
  • Type of Work
  • Time off
  • Sitting
  • 2 weeks
  • Standing
  • 4 weeks
  • Driving
  • 6 weeks
  • Lifting
  • 8 weeks

Risks of surgery

All surgical procedures carry some risk. The risk of complications with hallux valgus correction is low. Most patients benefit from surgery to correct a symptomatic hallux valgus deformity. A small number of patients are worse. You should weigh up the benefits with the risks prior to electing to have surgery.

This is a list of the most common problems which can occur:

  • Stiffness – reduced range of movement of the big toe joint
  • Swelling – is normal and improves with time, but can occasionally persist past 6 months
  • Wound healing problems – increased if smoking, diabetic, poor circulation
  • Nerve injury – resulting in numbness or pins and needles, occasionally nerve pain
  • Infection – minimized with antibiotics, elevation, keeping wound dry
  • Pain – which may require strong medication (usually Paracetamol is adequate)

These are quite rare complications, but they can and do happen:

  • Recurrence of the deformity – this is variable, but more common with flat-feet and adolescent patients
  • Overcorrection – rarely the toe can deviate too far in opposite direction (Hallux Varus)
  • Degeneration of the joint – or osteoarthritis, although usually it is not symptomatic (painful)
  • Problems with fixation - loss of fixation, fracture, symptomatic hardware, non-union
  • Ongoing or recurrent pain
  • Complex regional pain syndrome (CRPS) – nerve pain syndrome
  • DVT – clot in the deep veins of the leg (increased if smoking, contraceptive pill, hormone replacement or previous history)
  • Anaesthetic complications – more likely if there are pre-existing medical disorders

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  • Fellow of the Royal Australasian College of Surgeons
  • Fellow of the Australian Orthopaedic Association
  • Australian Medical Association
  • Royal North Shore Hospital
  • British Orthopaedic Foot & Ankle Society
  • American Orthopaedic Foot & Ankle Society
  • Australian Orthopaedic Foot & Ankle Society