- Arthritis in the foot and ankle most commonly affects the big toe joint, the midfoot joints, and the ankle joint itself.
- Causes include normal age-related wear (osteoarthritis), prior injury (post-traumatic), and inflammatory conditions like rheumatoid or psoriatic arthritis.
- First-line treatment combines supportive footwear, custom orthotics or bracing, anti-inflammatory medication, and physical therapy.
- Corticosteroid injections provide reliable relief for many patients with focal arthritis pain.
- Surgical options include joint fusion (arthrodesis) for severely worn joints and ankle replacement for selected patients.
What is foot and ankle arthritis?
Arthritis is the loss of cartilage in a joint — the smooth surface that allows the bones to glide against each other. In the foot and ankle, arthritis most commonly affects three areas: the first metatarsophalangeal (big toe) joint, the midfoot joints (the tarsal-metatarsal joints), and the tibiotalar (ankle) joint. The pattern matters because treatment options differ significantly by location.
There are three main types relevant to the foot and ankle. Osteoarthritis is age-related "wear and tear" arthritis, typically developing slowly over years. Post-traumatic arthritis follows a prior injury — a severe ankle sprain, a fracture, or repeated minor injuries — and can develop years later. Inflammatory arthritis (rheumatoid arthritis, psoriatic arthritis, gouty arthritis) is driven by the immune system attacking joint tissue and often affects multiple joints symmetrically. Each has its own typical presentation and treatment trajectory.
At Northwest Extremity Specialists, our approach to foot and ankle arthritis is stepped and joint-specific. Conservative care is highly effective for most patients: supportive footwear, custom orthotics designed for the affected joint, targeted bracing, anti-inflammatory medication, physical therapy, and corticosteroid injections all have proven roles. For end-stage arthritis where conservative care no longer provides adequate relief, modern surgical options — joint fusion for most foot joints, ankle replacement for selected ankle cases — provide reliable long-term outcomes.
The foot has 33 joints total, and several are particularly prone to arthritis. The first MTPJ (big toe) is high-load and frequently develops arthritis with age, particularly in people with prior turf toe injuries or bunion deformities. The midfoot joints (Lisfranc joint, intertarsal joints) often develop arthritis after a midfoot injury or in patients with progressive flatfoot. The ankle joint can develop arthritis from prior fractures, severe sprains, or — less commonly than other joints — primary osteoarthritis. The pattern of joint involvement and prior injury history guides the diagnosis.
What it feels like
Foot and ankle arthritis has joint-specific symptom patterns, but common features include:
- Joint pain that's worse with activity and improves with rest
- Morning stiffness that loosens up with movement
- Swelling around the affected joint
- Decreased range of motion — particularly bending the big toe up (for first MTPJ arthritis)
- A bony bump or enlargement of the joint
- A grinding or grating sensation with motion
- Difficulty walking on uneven surfaces or stairs
- For inflammatory arthritis: symmetric involvement of multiple joints, often with morning stiffness lasting > 1 hour
Why it develops
Arthritis develops from one of several distinct processes:
- Age-related cartilage wear (osteoarthritis)
- Prior fracture or significant injury (post-traumatic arthritis)
- Repetitive overload from high-impact sport or work
- Inflammatory autoimmune conditions (rheumatoid, psoriatic, lupus)
- Gout — crystal deposition causing recurrent joint damage
- Foot deformity (bunion, flatfoot) that overloads specific joints
- Family history
- Obesity, which accelerates joint wear
How we diagnose foot and ankle arthritis
A foot and ankle arthritis evaluation includes a careful history (which joints, what makes it worse, prior injuries, family history of inflammatory arthritis), a focused exam of each suspected joint, and weight-bearing X-rays taken in our office to evaluate joint space narrowing and bony changes. Blood tests for inflammatory arthritis may be ordered if rheumatologic disease is suspected, often in coordination with primary care. Most patients leave the same day with a specific diagnosis and a stepped treatment plan.
Non-surgical care
Most foot and ankle arthritis is managed successfully with conservative care, often for years. The right combination depends on which joint is involved:
- Supportive footwear with rocker-bottom soles for big-toe and midfoot arthritis
- Custom orthotics with rigid Morton's extension for first MTPJ arthritis
- Custom orthotics with arch support for midfoot arthritis
- Ankle bracing (lace-up or articulating AFO) for ankle arthritis
- Activity modification — reducing high-impact loading temporarily
- Anti-inflammatory medication (NSAIDs) for flares
- Corticosteroid injection into the affected joint (highly effective for many patients)
- Viscosupplementation (hyaluronic acid injection) in selected cases
- Physical therapy for range-of-motion and surrounding muscle strengthening
- Coordination with rheumatology for inflammatory arthritis
Surgical care
Surgery is reserved for end-stage arthritis that has failed conservative care. The right procedure depends on the joint involved, the patient's activity level, and overall foot alignment.
- Cheilectomy for early big-toe arthritis (removes the painful bone spur, preserves the joint)
- First MTPJ fusion for end-stage big-toe arthritis
- Joint replacement (implant arthroplasty) for selected big-toe cases
- Midfoot fusion for end-stage midfoot arthritis
- Ankle fusion (arthrodesis) for severe ankle arthritis — reliable long-term result
- Total ankle replacement for selected ankle arthritis patients
- Joint debridement or cartilage procedures in earlier-stage cases
Recovery from arthritis surgery varies by procedure. Foot joint fusions typically require 6–8 weeks of non-weight-bearing or protected weight-bearing, then transition to athletic shoes by 3–4 months. Ankle replacements involve a structured rehabilitation program over 6–12 months. Outcomes are generally very good for relieving arthritis pain.
When to see a specialist
- Joint pain or stiffness in the foot or ankle that has lasted more than 4–6 weeks
- Morning stiffness lasting more than 30–60 minutes (could be inflammatory arthritis)
- Joint swelling, especially if it's recurrent
- A sudden increase in pain or function loss in a previously stable arthritic joint
- Multiple joints affected symmetrically (suggests inflammatory arthritis — earlier evaluation matters)
Foot and ankle arthritis is evaluated and managed by any of our board-certified podiatrists. Complex cases requiring surgical intervention — particularly ankle replacement or midfoot reconstruction — are handled by our surgical podiatry team (Dr. Horvath, Dr. Melillo) and our orthopedic specialist Dr. Ron Bowman at our Tigard Locust office.