Insoles and orthotics modify the forces acting on the MTP joint during walking and standing. A well-designed insole reduces peak pressure at the big toe joint, corrects overpronation that strains the joint, and can incorporate a Morton’s extension to limit painful dorsiflexion.

Over-the-counter rigid or semi-rigid arch support insoles are a practical starting point. Some OTC options include a built-in Morton’s extension — a stiff carbon fibre plate that runs beneath the big toe to prevent upward bending during push-off, which is the main pain-generating motion in hallux rigidus.

Custom orthotics prescribed by a podiatrist are fabricated from a 3D cast or scan of your foot. They incorporate a precisely angled Morton’s extension, address leg length discrepancy, and distribute pressure across the whole foot. Research consistently shows custom orthotics reduce hallux rigidus pain and improve walking endurance more reliably than OTC options for moderate-to-severe cases.

Are custom orthotics worth the cost?

For Grade 2 and above, custom orthotics consistently outperform OTC insoles. A precisely calibrated Morton’s extension matched to your gait delivers better pain reduction and lasts 2–5 years. Compared to ongoing OTC costs or surgical costs, they are typically cost-effective over a multi-year horizon.

What is a Morton’s extension?

A rigid component extending from the heel to just under the tip of the big toe, blocking the MTP joint from bending upward during push-off. It is one of the best-evidenced conservative treatments available, mimicking the mechanical effect of surgical fusion during walking.

Can insoles delay surgery?

Insoles cannot reverse cartilage loss, but at Grade 1–2, consistent orthotic use combined with appropriate footwear reduces cumulative joint stress enough to control symptoms for years in many patients.

How long do orthotics last?

Custom orthotics typically last 2–5 years depending on activity level and materials. OTC insoles often need replacing every 6–12 months. Signs of breakdown: visible compression of foam layers, cracking of rigid components, or return of previously controlled pain.