Bunion Correctors: What They Can and Cannot Do

What a bunion is

A bunion (hallux valgus) is a deformity of the joint at the base of the big toe. The first long bone of the foot (metatarsal) angles outward, while the big toe angles inward, creating a bump on the inner edge of the foot. The skin over the bump may be red, tender and thickened, and a fluid-filled sac (bursa) may form. Over time, the big toe may press on or overlap the second toe, causing corns, calluses and hammer toes. Arthritis can develop in the joint.

Causes and contributors: inherited foot shape, flat or flexible feet, tight, narrow or high-heeled shoes, loose ligaments, arthritis (including rheumatoid arthritis), and previous foot injuries. Footwear does not cause bunions in everyone, but it can make them worse.

Symptoms: pain on the bump, particularly in shoes; swelling and redness; burning or numbness if a nerve is pressed; stiffness; corns and calluses; difficulty finding shoes that fit; and, with time, pain under the ball of the foot.

Realistic expectations about correctors

In an adult with a fixed bony deformity, there is no good evidence that splints, spacers or correctors can permanently straighten a bunion. Surgery is the only way to change the bone alignment. Correctors may:

• relieve pain and pressure,
• reduce rubbing and friction,
• keep the toe in a better position while worn,
• slow progression in some cases, though evidence is limited,
• help after surgery, as part of recovery, when advised by the surgeon.

So treat correctors as comfort and protection, not a permanent fix; the words "straighten" and "correct" on the packet describe temporary positioning.

Types of products

Gel or silicone toe spacers. Soft wedges placed between the big toe and the second toe to separate them, relieving rubbing and pressure. Some are loops that fit around the toe.

Bunion sleeves and cushions. Stretchy sleeves with a gel pad over the bump, to cushion it against the shoe and reduce friction.

Bunion splints (day or night). Rigid or semi-rigid splints, often with a hinge and a strap, that hold the toe in a straighter position, usually worn at night. They can be uncomfortable and may not be needed.

Toe separators or toe straighteners (multi-toe). Gel devices that spread all the toes. Used for general comfort.

Bunion shields and pads. Adhesive pads placed over the bump.

Orthotic insoles. Support the arch and alter foot loading, which may reduce pain; see insoles and orthotics for foot and heel pain.

Custom orthoses and footwear. Made by a podiatrist or orthotist for severe or complex cases.

Bunion surgery (bunionectomy and related procedures), considered when pain is severe, daily function is limited and conservative treatment has failed. A surgeon decides, taking into account health, bone quality and recovery needs.

Who should be careful or avoid these products

• People with diabetes. Any device that presses or rubs can cause an ulcer, especially if feeling is reduced. Do not use correctors without advice from a doctor or podiatrist; see diabetic foot care at home.
• Numb feet. Nerve damage means you may not feel a splint cutting in; see neuropathy foot care.
• Poor circulation, cold or pale feet, leg pain on walking or slow-healing wounds. Tight straps may worsen blood flow.
• Swollen feet and ankles where devices may become too tight; see swollen legs in older adults.
• Broken or fragile skin, ulcers, infection, fungal rash or open sores.
• Hot, red, intensely painful big toe joint, which may be gout rather than a bunion; see gout in older adults.
• Allergy to silicone, latex, adhesives or gels.
• People who cannot check their feet because of poor eyesight or inability to reach, unless a carer helps.
• Unexplained sudden deformity, or after injury.

Choosing and using correctors safely

1. Get a diagnosis from a doctor or podiatrist, especially if the toe is red, hot or very painful. 2. Choose soft over rigid for a first trial. Soft spacers and pads cause fewer problems than hard splints. 3. Check the size. Many are one-size, but a bulky device in a snug shoe can increase pressure. Choose a thin, flexible model that fits inside your shoes, or wear it with open or wide shoes. 4. Start slowly. Wear for short periods, such as an hour or two, then gradually increase, if the skin is comfortable. 5. Check the skin after each use. Look for redness that does not fade in half an hour, blisters, pressure marks, rubbing and numbness. Ask a family member to check if you cannot see well. 6. Do not wear tight straps that squeeze the toe or foot. 7. Wash and dry the product and your feet daily. Keep skin dry between toes to avoid fungal infection, particularly in humid weather; see skin conditions in older adults. 8. Replace worn, cracked or sticky devices. 9. Stop if pain increases, the toe turns pale or blue, or skin breaks. 10. Do not wear a night splint while sleeping if it causes numbness or you have neuropathy.

Footwear: the biggest factor

The right shoes can matter more than any corrector.

• Wide toe box. The shoe should have room for the toes to spread, with at least a thumb's width of space at the front. The widest part of the shoe should match the widest part of the foot.
• Soft, flexible upper, such as leather, canvas or stretchy mesh, with no seams over the bunion.
• Low heel, less than about 2.5 to 4 cm. High heels push the weight onto the forefoot and crowd the toes.
• Good arch support and cushioned sole, with a firm heel counter.
• Adjustable fastening, laces or Velcro, to accommodate swelling.
• Avoid pointed or narrow shoes, tight sandals with thin straps over the bump, and slippery soles.
• Shoe stretching: a cobbler can stretch shoes over the bunion area.
• Open sandals with soft straps may be comfortable at home, but may not provide support.
• Socks: seamless, soft, with a wide toe area.
• Measure feet each time you buy; foot size and shape change with age, and feet are largest in the afternoon.

See choosing shoes for older feet and walking aids and footwear.

Other ways to reduce bunion pain

• Rest and elevate after long standing.
• Ice (wrapped in cloth) for 10 minutes on an inflamed joint, with caution on numb skin; see heat or cold for joint pain.
• Gentle toe exercises and stretching, as shown by a physiotherapist or podiatrist.
• Weight management to reduce load on the forefoot.
• Painkillers and anti-inflammatory gels or tablets only as advised by a doctor or pharmacist; see painkillers and older adults.
• Corn and callus care by a podiatrist; avoid cutting them yourself.
• Walking aids if pain affects balance; see how to choose a walking stick.
• Balance and strength to avoid falls; see balance exercises for seniors.

When surgery is considered

Surgery may be advised for severe pain that limits walking and sleep, a joint that is badly deformed, or when shoes cannot be worn even with the above measures. Recovery takes weeks to months, with a protective shoe or boot, and needs help at home. Older adults need medical assessment to check fitness for surgery, bone quality, diabetes, circulation and healing. See rehabilitation after fracture or surgery: physio plan for recovery principles.

When to ask a professional

See a doctor or podiatrist for a bunion with a hot, red, severely painful joint, a sore or ulcer, numbness, discoloured toes, diabetes with any foot concern, pain that interferes with sleep or walking, a sudden change in the shape of the foot or after an injury. A podiatrist can advise on footwear, pads, orthoses and corns. An orthopaedic or foot surgeon can discuss surgery. A physiotherapist can help with gait and balance. A pharmacist can advise on skin products and pain relief.