Hammertoe Surgery: Arthroplasty vs Arthrodesis

Quick answer: Hammertoe Surgery Types Arthroplasty Arthrodesis Guide is a common foot/ankle topic that affects many patients. Effective treatment starts with a targeted diagnosis, conservative-first treatment, and escalation only when needed. We treat this regularly at our Howell and Bloomfield Township practices. Call (810) 206-1402.

Medically reviewed by Dr. Tom Biernacki, DPM — Board-Certified Podiatric Surgeon — Balance Foot & Ankle, Howell & Bloomfield Hills, MI. Last updated April 2026.

When conservative hammertoe management fails to provide adequate relief, surgery can straighten the deformed toe and resolve pain from shoe pressure and nail problems. The two main surgical options — proximal interphalangeal joint (PIPJ) arthroplasty and PIPJ arthrodesis — have distinct advantages and trade-offs that depend on the patient’s toe flexibility, activity level, and goals.

Anatomy of Hammertoe Deformity

A hammertoe deformity involves flexion contracture at the proximal interphalangeal joint (PIPJ) — the middle knuckle of the lesser toes — causing the toe to curve downward. The extensor and intrinsic muscle balance is disrupted, with the long extensor (EDL) overpowering the intrinsics, dorsiflexing the metatarsophalangeal joint (MTPJ) and flexing the PIPJ. The result is a “Z-shaped” deformity that creates dorsal pressure at the PIPJ from shoe pressure and tip pressure at the toe tip.

Hammertoe is distinguished from claw toe (flexion at both PIPJ and DIPJ with MTP hyperextension) and mallet toe (flexion at the DIPJ only). Classification as flexible (corrects passively) vs. rigid (fixed deformity) is the key surgical planning criterion.

Conservative Treatment Before Surgery

Surgery is considered only after conservative measures fail: toe pads or shields to protect the dorsal PIPJ prominence, wider or deeper toe-box footwear, accommodative orthotics, and digital splinting for flexible deformities. Corticosteroid injection for associated MTPJ synovitis addresses a common contributing factor. Flexible hammertoes respond much better to conservative treatment than rigid ones.

PIPJ Arthroplasty (Condylectomy)

Arthroplasty removes the head of the proximal phalanx (the bony prominence causing the dorsal corn), creating a pseudoarthrosis — a fibrous joint rather than a fused one. The procedure straightens the toe, eliminates the PIPJ prominence, and preserves some toe flexibility. Kirschner wire (K-wire) fixation is typically used for 3–4 weeks postoperatively to maintain alignment while soft tissue healing occurs.

Advantages: preserves some toe motion, slightly faster recovery, lower nonunion concern. Disadvantages: higher recurrence rate (10–20%) for rigid deformities, less predictable long-term alignment, risk of “floppy toe” syndrome from excessive bone removal. Best suited for flexible hammertoes in patients who prioritize some toe motion.

PIPJ Arthrodesis (Fusion)

Arthrodesis removes cartilage from both sides of the PIPJ and fixates the joint in a straight position until bone heals across it. Modern fixation options include intramedullary implants (Smart Toe, StayFuse, HammerFix), absorbable pins, and traditional K-wires. Bone union produces a permanently straight, stable toe with a predictable outcome.

Advantages: lower recurrence rate, more predictable alignment, durable correction of rigid deformities. Disadvantages: permanent loss of PIPJ motion (though the DIP joint retains motion), slightly longer healing time (6–8 weeks for bone union), nonunion risk (approximately 5–10% with intramedullary implants, higher with K-wire).

PIPJ arthrodesis is preferred for rigid hammertoes and in patients with prior arthroplasty failure. Intramedullary implant fixation has largely replaced K-wire for primary arthrodesis due to convenience (no external wire), lower infection risk, and equivalent union rates.

Concomitant Procedures

Hammertoe correction rarely occurs in isolation. Metatarsophalangeal joint release (extensor tendon lengthening, MTPJ capsulotomy, collateral ligament release) addresses the dorsal contracture component. Weil metatarsal osteotomy shortens an overly long metatarsal and reduces MTPJ plantar pressure. Plantar plate repair addresses second toe crossover deformity with plantar plate attenuation. Combined procedures targeting all anatomic contributors produce superior outcomes to isolated hammertoe correction.

At Balance Foot & Ankle, Dr. Biernacki evaluates hammertoe deformity and performs arthroplasty, arthrodesis, and combined reconstructive procedures at both Bloomfield Hills and Howell offices. Call (810) 206-1402 to schedule a lesser toe evaluation.

In-Office Treatment at Balance Foot & Ankle

If home treatment isn’t providing relief for your hammertoes, our podiatry team at Balance Foot & Ankle can help with same-day evaluations and advanced in-office care.

Frequently Asked Questions

When should I see a podiatrist?

If symptoms persist past 2 weeks, affect your normal activity, or are accompanied by red-flag symptoms (warmth, redness, swelling, inability to bear weight).

What does treatment cost?

Most diagnostic visits and conservative treatments are covered by Medicare and major insurers. Out-of-pocket costs vary by your specific plan.

How quickly can I get an appointment?

Most non-urgent cases see us within 5 business days. Urgent cases (sudden pain, possible fracture) typically same or next business day.

What is Hammertoe?

Hammertoe is a common foot/ankle condition that affects mobility and quality of life. Understanding the underlying cause is the first step in successful treatment. Our podiatrists at Balance Foot & Ankle perform a hands-on biomechanical exam, review your activity history, and use diagnostic imaging when appropriate to identify the root cause—not just treat the symptom. Many patients have been told to “rest and ice” without a deeper diagnostic workup; our approach is different.

Symptoms and warning signs

Common signs of hammertoe include pain that worsens with activity, morning stiffness, swelling, tenderness when palpated, and difficulty bearing weight. If you experience sudden severe pain, inability to walk, visible deformity, numbness or color change, contact our office the same day or visit urgent care—these can signal a more serious injury such as a fracture, tendon rupture, or vascular compromise. Diabetics with any foot wound should seek same-day care.

Conservative treatment options

Most cases of hammertoe respond to non-surgical care: structured rest, supportive footwear changes, custom orthotics, targeted stretching and strengthening protocols, anti-inflammatory medications when medically appropriate, and in-office procedures such as ultrasound-guided injections. We also offer advanced therapies including MLS laser therapy, EPAT/shockwave, regenerative injections, and image-guided procedures. Treatment is sequenced from least invasive to most invasive, and we explain the rationale at every step.

When is surgery considered?

Surgery is reserved for cases that fail 3-6 months of well-structured conservative care, when there is structural pathology (severe deformity, complete tear, advanced arthritis), or when imaging shows damage that will not heal without intervention. Our surgeons have performed 3,000+ foot and ankle procedures and prioritize minimally-invasive techniques whenever appropriate. We discuss recovery timelines, return-to-activity milestones, and realistic outcome expectations before any procedure is scheduled.

Recovery timeline and prevention

Recovery from hammertoe varies based on severity and chosen treatment path. Conservative cases often improve within 4-8 weeks with consistent adherence to the protocol. Post-procedural recovery may range from a few days (in-office procedures) to several months (reconstructive surgery). Long-term prevention involves footwear assessment, activity modification, structured strengthening, and regular check-ins with your podiatrist if you have a history of recurrence. We provide written home-exercise plans and digital follow-up support.