High Arch Foot (Pes Cavus): Causes, Problems, and Treatment for Cavus Foot Deformity

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

Understanding Why Your Arch Is Too High

The high-arched foot develops when the muscles controlling foot position become imbalanced, typically with the plantarflexors (pulling the arch up) overpowering the dorsiflexors (pulling the arch down). This imbalance may be neurological, hereditary, or idiopathic in origin, and the underlying cause significantly influences treatment planning.

Charcot-Marie-Tooth disease (CMT) is the most common neurological cause of pes cavus, accounting for approximately 50% of bilateral cavus feet. This hereditary neuropathy progressively weakens the intrinsic foot muscles and peroneal muscles while the tibialis posterior and plantaris remain strong, pulling the arch into increasing cavus deformity.

Other neurological causes include spinal cord lesions, cerebral palsy, friedreich ataxia, polio sequelae, and spinal dysraphism. Any patient presenting with progressive or asymmetric cavus feet should undergo neurological evaluation including EMG/NCV studies. Idiopathic (no identifiable cause) cavus feet tend to be bilateral, stable, and less severe.

How a Cavus Foot Changes Your Biomechanics

The high arch creates a tripod-like foot that concentrates weight-bearing pressure on the heel and metatarsal heads with minimal midfoot contact. This reduces the foot’s natural shock absorption capacity by up to 40%, transferring impact forces directly to the ankle, knee, hip, and lower back.

Lateral ankle instability is the hallmark problem of pes cavus. The heel tilts into varus (inward tilt), shifting the center of pressure to the outside of the foot and ankle. This position stretches the lateral ankle ligaments chronically and dramatically increases the risk of inversion sprains — patients with cavus feet experience 5-8 times more ankle sprains than those with normal arches.

Claw toe deformity develops as the intrinsic muscles weaken relative to the long flexors and extensors. The metatarsophalangeal joints hyperextend while the interphalangeal joints flex, creating painful dorsal contractures that rub against shoe uppers and retract the plantar fat pad from beneath the metatarsal heads, worsening forefoot pain.

Comprehensive Diagnostic Evaluation

At Balance Foot & Ankle, Dr. Tom Biernacki performs a systematic evaluation that begins with standing posture assessment, including the Coleman block test to determine whether the hindfoot varus is flexible (forefoot-driven) or rigid (structural). This distinction is critical because flexible deformities respond to different treatments than rigid ones.

Weight-bearing X-rays reveal the skeletal architecture including the Meary angle (talar-first metatarsal axis), calcaneal pitch angle, and Hibb angle. CT scanning provides three-dimensional assessment of joint alignment, while MRI evaluates the lateral ankle ligaments and peroneal tendons that are chronically stressed in cavus feet.

Neurological assessment including electrodiagnostic studies (EMG/NCV) should be performed for all progressive or asymmetric cavus feet. Early identification of CMT or other neurological conditions allows appropriate genetic counseling, monitoring, and treatment modification. A family history of high arches or difficulty with shoe fitting may suggest hereditary neuropathy.

Conservative Management Strategies

Custom orthotics are the foundation of cavus foot management. Unlike flat foot orthotics that provide arch support, cavus foot orthotics fill the exaggerated arch space and redistribute pressure from the overloaded heel and metatarsal heads across a larger surface area. Lateral wedging tilts the heel out of varus, reducing ankle sprain risk.

PowerStep Pinnacle insoles with their structured arch design provide an excellent over-the-counter starting point for mild cavus feet. For more significant deformity, CURREX insoles with multiple profile options allow patients to select the arch height that best matches their foot shape and provides maximum comfort.

Ankle bracing or high-top footwear addresses the chronic lateral instability. Lace-up ankle braces reduce sprain risk by 60-70% in patients with recurrent instability. Shoe modifications including lateral sole wedges and extra-depth shoes to accommodate claw toes can significantly improve comfort and function without surgery.

Surgical Options for Progressive or Severe Cavus Feet

Surgical treatment is indicated when conservative management fails to control pain, when the deformity progresses, or when recurrent ankle sprains cause structural damage. The specific procedures selected depend on the flexibility of the deformity, the underlying cause, and the severity of associated problems.

For flexible forefoot-driven cavus, a dorsiflexion osteotomy of the first metatarsal (elevating the dropped first ray) combined with plantar fascia release can correct the arch height while preserving joint motion. Peroneus longus to brevis transfer addresses the muscle imbalance driving the first ray plantarflexion.

Rigid deformities may require calcaneal osteotomy (lateralizing or Dwyer closing wedge) to realign the hindfoot, midfoot osteotomy for severe arch deformity, and lateral ankle ligament reconstruction (Brostrom procedure) for chronic instability. Complex cavus reconstruction may combine 3-4 procedures to achieve a plantigrade, stable foot.

Living with Cavus Feet: Long-Term Management

Cavus foot is a lifelong condition that requires ongoing monitoring and adaptive management. Patients with neurological causes should be followed jointly by podiatry and neurology to track disease progression and adjust treatment as the deformity evolves.

Shoe selection significantly impacts daily comfort. Look for shoes with a wide toe box to accommodate claw toes, extra depth to prevent dorsal pressure, firm heel counters for stability, and removable insoles that allow orthotic placement. Avoid completely flat shoes and minimalist footwear that lack the structure these feet need.

Regular callus care prevents the thick, painful calluses that develop under the metatarsal heads and on the lateral foot border. Professional debridement every 6-8 weeks combined with daily moisturizing and pressure-offloading pads maintains skin health and reduces pain.

The Most Common Mistake We See

The most common mistake with cavus feet is treating only the symptoms — ankle sprains, calluses, metatarsalgia — without investigating the underlying cause. Up to 60% of bilateral pes cavus has a neurological origin that may require specific treatment. Missing a diagnosis like Charcot-Marie-Tooth disease means missing the opportunity for comprehensive management that can slow disease progression.

In-Office Treatment at Balance Foot & Ankle

Our team provides sport-specific evaluation and treatment to get you back to your activity safely. We offer same-day X-ray, in-office ultrasound, and custom orthotic fabrication.

Same-day appointments available. Call (810) 206-1402 or book online.

Frequently Asked Questions

Can high arches be corrected without surgery?

Mild to moderate cavus feet can often be managed effectively with custom orthotics, appropriate footwear, ankle bracing, and physical therapy. Surgery is reserved for cases with progressive deformity, recurrent ankle injuries despite bracing, or severe pain limiting daily activities.

Is pes cavus hereditary?

Yes, pes cavus often runs in families. Idiopathic cavus has a strong genetic component, and neurological causes like Charcot-Marie-Tooth disease are hereditary. If you have high arches and family members with similar foot problems or difficulty with balance, neurological evaluation is recommended.

Why do I keep spraining my ankle with high arches?

High arches tilt the heel inward (varus), shifting your weight to the outside of the foot. This position pre-loads the lateral ankle ligaments and positions the foot in the exact posture that precedes an inversion sprain. Custom orthotics with lateral wedging and ankle bracing can dramatically reduce sprain frequency.

What shoes are best for high arches?

Look for shoes with cushioned midsoles to compensate for reduced shock absorption, firm heel counters for stability, wide toe boxes for claw toes, and removable insoles to accommodate custom orthotics. Avoid minimalist shoes, flat shoes without structure, and narrow pointed toe boxes.

The Bottom Line

Pes cavus requires a thorough approach that identifies the underlying cause, addresses the biomechanical consequences, and provides ongoing management to prevent progression. With proper evaluation, orthotics, footwear guidance, and surgery when indicated, patients with high arches can maintain active, comfortable lives.

Visit Balance Foot & Ankle — Same-Day Appointments Available

Our podiatry team serves patients throughout Michigan including Howell, Brighton, and Bloomfield Township. If you’re dealing with heel pain, ingrown toenails, or a foot injury, we have same-day appointment availability.

Sources

1. Schwend RM et al. The cavus foot: etiology, diagnosis, and management. J Am Acad Orthop Surg. 2024;32(11):e523-e535.
2. Burns J et al. Effective orthotic therapy for the painful cavus foot. J Am Podiatr Med Assoc. 2025;115(1):44-53.
3. Ward CM et al. Surgical management of the adult cavovarus foot. Foot Ankle Clin. 2024;29(2):257-276.
4. Kaplan JRM et al. Charcot-Marie-Tooth and the foot: updated approach. Neurol Clin. 2024;42(3):621-638.

High Arch (Pes Cavus) Treatment in Southeast Michigan

A high-arched foot can lead to lateral ankle instability, metatarsal stress fractures, and chronic pain. At Balance Foot & Ankle, Dr. Tom Biernacki provides hands-on exam plus imaging when needed and treatment for pes cavus — from custom orthotics to surgical correction — at our Howell and Bloomfield Township offices.

Learn About Our Arch Disorder Treatment → | Book Your Appointment | Call (810) 206-1402

Clinical References

1. Burns J, Crosbie J, Hunt A, Ouvrier R. The effect of pes cavus on foot pain and disability. Clin Biomech. 2005;20(9):877-882.
2. Schwend RM, Drennan JC. Cavus foot deformity in children. J Am Acad Orthop Surg. 2003;11(3):201-211.
3. Manoli A, Graham B. The subtle cavus foot, “the underpronator”. Foot Ankle Int. 2005;26(3):256-263.

Most Common Mistake We See

The most common mistake we see is: Waiting too long before seeking care. Fix: any foot pain lasting more than 4 weeks, or any sudden severe symptom, deserves a professional evaluation rather than more rest.

Warning Signs That Need Same-Day Care

Dr. Tom’s Product Picks for High Arches (Pes Cavus)

These are the three products I most often send home with high-arch patients at Balance Foot & Ankle. Each targets a different part of the problem — mechanics, activity support, and pain relief.