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Health condition · Clinically reviewed

Foot and ankle osteoarthritis, from footwear to fusion and ankle replacement.

Most ankle arthritis is post-traumatic - and most people do very well with a structured, joint-by-joint plan before surgery is ever needed.

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Why trust this guide

  • 01

    Clinically reviewed

    Written by our editorial team and reviewed by a registered UK clinician before publication.

  • 02

    Sourced from guidance

    Checked against NICE, BOFAS and peer-reviewed foot and ankle sources listed at the end.

  • 03

    Current for 2026

    Reflects modern UK practice including total ankle replacement, arthrodesis and image-guided injections.

Key facts

Foot and ankle osteoarthritis at a glance.

The essentials, in plain English - the joints affected, why the pattern differs from hip and knee arthritis, and how it is treated in the UK today.

  • What it is

    Osteoarthritis of one or more joints in the foot or ankle - progressive loss of joint cartilage with pain, stiffness and deformity.

  • Common sites

    Ankle (tibiotalar), subtalar, talonavicular, midfoot (Lisfranc and tarsometatarsal) and first metatarsophalangeal (hallux rigidus).

  • A different pattern

    Unlike hip or knee osteoarthritis, ankle arthritis is usually post-traumatic rather than primary - fractures, sprains and chondral injuries lead the list.

  • Hallux rigidus

    Arthritis of the great toe joint is one of the most common presentations - see our dedicated guide on hallux rigidus.

  • Assessment

    Weight-bearing X-rays are the workhorse - CT and MRI are reserved for complex disease and surgical planning.

  • Treatment ladder

    Footwear, orthotics, physiotherapy and injections first - fusion or replacement reserved for advanced disease that fails conservative care.

Why this guide matters

A joint-by-joint plan, not a one-size answer.

The foot has more than thirty joints. Getting the pain-generating joint right shapes every choice that follows.

  • Site drives treatment

    Ankle, subtalar, midfoot and great toe joint arthritis behave differently - and each has its own ladder from footwear to surgery.

  • Post-traumatic pattern is common

    Most ankle and midfoot arthritis follows earlier fractures, sprains or Lisfranc injuries - a fact that shapes prognosis and planning.

  • Modern surgery has options

    Beyond fusion, total ankle replacement, cheilectomy and cartilage procedures give real function to carefully selected patients.

How the diagnosis is made

From first ache to a clear plan.

The steps a UK foot and ankle specialist normally follows, in order - so you know what to expect and why.

  1. 01

    Assessing

    History and trauma review

    Previous ankle fractures, sprains, Lisfranc injuries or foot surgery are strong pointers to post-traumatic osteoarthritis.

  2. 02

    Assessing

    Foot and ankle examination

    Alignment, range of movement, tenderness, swelling and gait - each joint is tested in turn to localise the pain.

  3. 03

    Assessing

    Inflammatory screen if suspected

    When the pattern suggests rheumatoid arthritis, psoriatic arthritis or gout, bloods and joint aspiration may be arranged before labelling it osteoarthritis.

  4. 04

    Confirming

    Weight-bearing X-rays

    Standing AP, lateral and oblique views of the foot and ankle, with a Broden view for the subtalar joint and hindfoot alignment views when needed.

  5. 05

    Confirming

    CT and MRI where indicated

    CT maps bone loss and planning for fusion or replacement. MRI helps in early disease, osteochondral lesions and soft-tissue questions.

  6. 06

    Planning

    Specialist foot and ankle review

    A specialist orthopaedic foot and ankle surgeon confirms the joint driving symptoms and matches treatment to site and stage.

  7. 07

    Planning

    Shared decision on the ladder

    Footwear, orthotics, injections, arthroscopic care, fusion or replacement - the plan is built around your joints, activity and goals.

Typical timeline: a first visit to a settled plan in weeks, not months.

Symptoms

What foot and ankle arthritis actually feels like.

Location shapes the pattern - ankle, subtalar, midfoot and great toe arthritis each have their tell-tale features.

  • Ankle joint pain

    Anterior and medial ankle pain with reduced dorsiflexion - a classic pattern in post-traumatic tibiotalar osteoarthritis.

  • Subtalar pain

    Deep hindfoot pain aggravated by walking on uneven ground and by inversion or eversion.

  • Midfoot pain

    Dorsal midfoot pain and a tender arch, often with a bony prominence over the tarsometatarsal joints.

  • Great toe joint - hallux rigidus

    Pain and stiffness at the first metatarsophalangeal joint with a dorsal bump. See our hallux rigidus guide for the full picture.

  • Stiffness and swelling

    Morning stiffness, low-grade swelling and pain that eases with rest but returns with activity.

  • Altered gait

    A shortened stride, reduced push-off and shoe-wear changes as the foot adapts to painful joints.

  • Deformity

    Progressive varus or valgus of the hindfoot, midfoot collapse, or a stiff, straight great toe over time.

  • Red flag - hot, swollen joint

    A rapidly hot, red, swollen joint is not simple osteoarthritis - think gout, sepsis or an inflammatory flare and seek urgent review.

Treatment

How foot and ankle arthritis is treated in the UK.

Footwear, orthotics, physiotherapy and injections carry most patients a long way. Fusion and total ankle replacement are reserved for advanced disease that fails conservative care.

  • Supportive footwear

    Stiff-soled shoes with a rocker sole, a carbon-fibre plate or a Morton extension reduce load through arthritic joints and settle pain.

  • Custom orthotics

    Bespoke insoles offload painful joints and correct alignment - see our custom orthotics clinic for the fitting process.

  • Specialist podiatry and physio

    Targeted strengthening, calf and Achilles work, and range-of-motion drills protect the joint and delay progression.

  • Bracing and AFO

    An ankle-foot orthosis can transform function for ankle and subtalar arthritis when surgery is not yet appropriate.

  • Corticosteroid injection

    Ultrasound-guided intra-articular steroid gives useful relief for many joints - see our large-joint cortisone injection service.

  • Hyaluronic acid and PRP

    Selected patients benefit from viscosupplementation or platelet-rich plasma, particularly for early ankle and midfoot arthritis.

  • Arthroscopy and cartilage work

    For early ankle disease, arthroscopic debridement and osteochondral procedures (including BMAC and Regen) address focal lesions.

  • Fusion or joint replacement

    Arthrodesis remains the reliable long-term option. Total ankle replacement gives a mobile joint in carefully selected patients.

What this guide is based on

The sources behind every claim on this page.

UK national guidance and specialist society standards, current at the time of last review.

Key references

Guidelines and standards we relied on.

A quiet reminder

This guide is for information, not medical advice.

Your GP or foot and ankle surgeon knows your feet, your imaging and your history and can tell you which parts apply to you. If in doubt, get seen.

  • NICE. Osteoarthritis in over 16s: diagnosis and management (NG226).

  • British Orthopaedic Foot and Ankle Society (BOFAS). Patient information and standards.

  • Royal College of Surgeons of England. Commissioning guidance for foot and ankle surgery.

  • National Joint Registry (NJR). Annual report - ankle replacement outcomes.

Red flags

When foot and ankle pain needs urgent attention.

Most foot and ankle osteoarthritis is manageable in primary care. These are the situations that need a specialist opinion sooner rather than later.

  • Hot, red, swollen joint

    A rapidly inflamed joint with fever is not simple osteoarthritis - consider septic arthritis, gout or an inflammatory arthritis and seek urgent care.

  • Sudden severe pain after injury

    A new fracture, Lisfranc injury or tendon rupture can present in a background of arthritis and needs prompt assessment.

  • Progressive deformity

    Rapid collapse of the medial arch or worsening hindfoot alignment can signal adult-acquired flatfoot or Charcot arthropathy in at-risk feet.

  • Numbness or foot drop

    New nerve symptoms in the foot need urgent review - the problem may not be in the joint at all.

  • Non-healing ulcer or wound

    A wound over an arthritic joint, especially in diabetes, raises the risk of deep infection and needs specialist input quickly.

  • Diabetes with painless swelling

    Painless swelling and warmth in a neuropathic foot may be Charcot neuroarthropathy - a limb-threatening emergency, not everyday arthritis.

  • Systemic features

    Fever, weight loss, night sweats or widespread joint pain point to inflammatory or systemic disease rather than mechanical osteoarthritis.

  • Failure of conservative care

    Persistent, disabling pain despite footwear, orthotics, physiotherapy and injections is a signal to escalate to surgical opinion, not to soldier on.

Living with it

A treatable condition, with a clear ladder.

Four things that make the biggest difference day to day - the right shoes, sensible load, strong calves and feet, and knowing when to step up.

A quiet reminder

Consistency beats intensity, every time.

Small, steady habits kept up for months do more than a heroic week that doesn’t last.

  1. 01 Footwear

    Get the shoes right first

    A stiff, supportive shoe with a rocker sole often does more than any tablet - it is the cheapest and most powerful intervention.

  2. 02 Load

    Manage weight and activity

    Small reductions in body weight and swapping high-impact for low-impact activity protect painful joints for years.

  3. 03 Strength

    Keep the calf and foot strong

    Targeted physiotherapy for the calf, intrinsic foot muscles and hip stabilisers keeps you off surgery for as long as possible.

  4. 04 Escalate

    Don’t suffer in silence

    If everyday walking is limited despite conservative care, a specialist foot and ankle opinion opens options like fusion or replacement.

Frequently asked

Everything we get asked about foot and ankle osteoarthritis.

Quick answers on the joints affected, imaging, injections, fusion and ankle replacement.

  • What is foot and ankle osteoarthritis?

    It is osteoarthritis affecting one or more of the many joints in the foot and ankle - the tibiotalar (true ankle), subtalar, talonavicular, midfoot and metatarsophalangeal joints. It causes pain, stiffness, swelling, deformity and difficulty walking on uneven surfaces or in unsupportive shoes.

  • Why is ankle arthritis usually post-traumatic?

    Unlike the hip and knee, primary osteoarthritis of the ankle is uncommon. Most ankle arthritis follows earlier injury - ankle fractures, high-grade sprains, chondral injuries and instability - which damages the smooth cartilage surface and drives long-term wear.

  • How is it diagnosed?

    Diagnosis is clinical, supported by weight-bearing X-rays of the foot and ankle in AP, lateral and oblique views. A specialist may add a Broden view for the subtalar joint, hindfoot alignment views and, in complex cases, CT or MRI. Inflammatory arthritis and gout are considered when the pattern fits.

  • What non-surgical treatments help?

    A lot. Stiff-soled shoes with a rocker sole, carbon-fibre plates, Morton extensions, custom orthotics, specialist podiatry and physiotherapy, weight loss, NSAIDs and image-guided corticosteroid injections all have a role. Bracing with an ankle-foot orthosis can be a game-changer for ankle and subtalar arthritis.

  • Should I have a fusion or an ankle replacement?

    Both are excellent operations in the right patient. Ankle arthrodesis (fusion) is reliable and durable. Total ankle replacement preserves movement and can be superb for suitable patients, with outcomes improving steadily. The decision depends on alignment, bone quality, activity level and adjacent joints, and is made with a specialist foot and ankle surgeon.

  • Where does hallux rigidus fit in?

    Hallux rigidus is osteoarthritis of the first metatarsophalangeal joint - the great toe joint. It is one of the most common sites of foot arthritis and has its own dedicated treatment ladder: shoe modification, injections, cheilectomy, implants such as Cartiva, and fusion for advanced disease. Our hallux rigidus guide walks through it in detail.

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