Medically reviewed by Dr. Tom Biernacki, DPM
Board-certified podiatric surgeon | Balance Foot & Ankle, Howell & Bloomfield Hills, MI
Last reviewed: May 2026
Balance Foot & Ankle offers same-day appointments for urgent foot and ankle conditions across Southeast Michigan — but the most important factor in outcomes isn’t getting seen quickly. Our podiatrists explain what to do in the first 24-48 hours before your appointment that most patients skip entirely. Call (810) 206-1402 — expert podiatric care across Michigan.
| Cause Category | Specific Cause | Deformity Pattern | Laterality | Workup |
|---|---|---|---|---|
| Neurologic (most common) | Charcot-Marie-Tooth (CMT) disease; Friedreich’s ataxia; spinal cord lesion | Intrinsic minus; FHL/FDB overpull; peroneus longus overpull → plantar-flexed 1st ray | Bilateral and symmetric (CMT); asymmetric (spinal cord) | EMG/NCS; genetic testing; spine MRI for asymmetric cases |
| Residual | Untreated clubfoot (CTEV); post-polio; compartment syndrome sequelae | Varus hindfoot; plantarflexed forefoot; rigid deformity | Usually unilateral | History; prior surgical records; X-ray for residual |
| Idiopathic | No identified cause; may be mild familial variant | Mild high arch; flexible; minimal symptoms | Bilateral | Diagnosis of exclusion after neuro workup |
| Traumatic | Compartment syndrome; crush injury; Lisfranc malunion | Variable; intrinsic contracture; midfoot collapse | Unilateral | History; CT for bony malunion |
| Procedure | Indication | Technique | Expected Outcome | Recovery |
|---|---|---|---|---|
| Custom Orthotics (lateral wedge + metatarsal support) | Flexible cavus; mild-moderate symptoms | Lateral heel wedge; metatarsal dome; accommodative shell | 70–80% symptom control for flexible deformity | Immediate; ongoing use |
| AFO (Ankle Foot Orthosis) | Cavus with foot drop or significant hindfoot instability | Custom rigid or articulated AFO; provides ankle stability | Functional improvement; reduces falls | 2–4 weeks break-in |
| Plantar Fascia Release | Tight plantar fascia component; flexible forefoot equinus | Open or endoscopic plantar fasciotomy; lengthens plantar structures | Improves flexibility; adjunct to other procedures | 3–6 weeks NWB; 3 months full activity |
| Peroneus Longus to Brevis Transfer | CMT; plantar-flexed 1st ray; overpull of PL causing forefoot valgus | Transfer PL tendon to PB; reduces plantarflexion of 1st ray | 75–85% reduction in forefoot imbalance | 6 weeks boot; 3–4 months sport |
| Calcaneal Osteotomy (Dwyer / lateralizing) | Varus hindfoot component; Coleman block test positive (hindfoot flexible) | Closing wedge laterally (Dwyer) or lateral slide; corrects heel varus | 85–90% hindfoot realignment | 6–8 weeks NWB; 4–6 months |
| Triple Arthrodesis | Rigid cavovarus; failed soft tissue procedures; arthritic hindfoot | Fusion of subtalar, talonavicular, calcaneocuboid joints | 80–90% pain relief; correction maintained | 8–12 weeks NWB; 6–12 months |
Medically Reviewed | Dr. Tom Biernacki, DPM | Board-Certified Podiatric Surgeon | Balance Foot & Ankle, Michigan
The high-arched foot — clinically termed pes cavus — is the structural opposite of the flatfoot deformity that dominates most podiatric discussions, but it creates an equally significant and arguably more complex set of clinical problems. Where the flatfoot collapses medially and overloads the inside of the foot, the cavus foot has an excessively elevated arch that forces the forefoot and heel into the primary load-bearing positions, eliminates the arch’s normal shock-absorbing function, and creates chronic lateral instability that produces a predictable cascade of injuries: ankle sprains, peroneal tendon tears, fifth metatarsal fractures, and forefoot pain.
The most important clinical decision with Cavus Foot High Arch Foot Michigan Podiatrist isn’t which treatment to start with — it’s identifying the correct subtype. That changes everything. Call (810) 206-1402.
The Critical Neurological Evaluation
Before focusing on the foot itself, the most important clinical task in evaluating cavus foot is determining whether the deformity has a neurological cause. Approximately 60–70% of patients with pes cavus — particularly those with bilateral, symmetric, or progressive deformity — have an underlying neuromuscular condition. The most common is Charcot-Marie-Tooth disease (CMT), an inherited peripheral neuropathy that causes selective weakness of intrinsic foot muscles and results in the characteristic muscle imbalance that drives cavus deformity. Other neurological causes include spinal cord tumors, tethered cord, Friedreich’s ataxia, and poliomyelitis.
Every patient with bilateral cavus foot or a progressive course should receive neurological evaluation, electromyography/nerve conduction studies, and MRI of the spine to exclude treatable spinal pathology. Missing CMT does not change the foot treatment, but identifying it allows genetic counseling, early management of progressive weakness, and appropriate family screening.
Coleman Block Test: Flexible vs. Rigid
The Coleman block test is the most important clinical examination in cavus foot evaluation. The patient stands on a wooden block with the lateral forefoot and heel in contact while the first metatarsal hangs free over the edge. If the hindfoot varus corrects to neutral when the first ray is unloaded — a positive block test — the hindfoot deformity is flexible and driven by first ray plantarflexion. This indicates a forefoot-driven cavovarus that can be corrected with soft tissue procedures and first ray osteotomy. A negative test indicates rigid hindfoot varus that requires calcaneal osteotomy for correction.
Clinical Problems Associated with Cavus Foot
The high arch foot creates mechanical problems throughout the lower extremity:
- Recurrent lateral ankle sprains — hindfoot varus pre-positions the ankle in inversion, dramatically increasing lateral ligament injury risk with every step on uneven terrain
- Peroneal tendon disorders — chronic inversion stress and the sharp fibula ridge impinge on peroneal tendons, causing subluxation and longitudinal split tears
- Fifth metatarsal stress fractures — the lateral overloading of the cavus foot concentrates stress at the fifth metatarsal diaphysis (zone 3), producing the “dancer’s fracture” stress injury
- Metatarsalgia — with the arch elevated, the metatarsal heads bear disproportionate forefoot load, causing chronic forefoot pain and callus under the second and third metatarsal heads
- Hammer toe deformities — muscle imbalance from intrinsic weakness produces characteristic claw toe deformities across all lesser toes
- Plantar fasciitis — the tight plantar fascia of the cavus foot creates chronic insertional tension at the calcaneus
Treatment
Conservative management for mild-to-moderate cavus foot centers on a lateral heel wedge orthotic to counteract hindfoot varus, a lace-up ankle brace or custom MAFO for chronic ankle instability, cushioned metatarsal pads for forefoot offloading, and a rocker-sole shoe to reduce peak forefoot pressures.
Surgical correction for significant cavovarus addresses the underlying deformity through a comprehensive approach: plantar fascia release to reduce the arch apex, first metatarsal dorsiflexion osteotomy or dorsiflexory wedge osteotomy to elevate the plantarflexed first ray, calcaneal osteotomy (Dwyer) for rigid hindfoot varus, peroneus longus-to-brevis tendon transfer to reduce first ray plantarflexion drive, Brostrom ankle ligament reconstruction for chronic instability, and hammer toe correction as needed. The combination of procedures is tailored to each patient’s specific deformity pattern and neurological status.
Dr. Tom's Product Recommendations
Superfeet ORANGE High-Arch Orthotic
⭐ Highly Rated
High-arch OTC orthotic with deep heel cup and firm lateral flange — provides the lateral forefoot cushioning and hindfoot stability that cavus foot patients need in athletic footwear.
Dr. Tom says: “My podiatrist recommended these for my high arch — the lateral cushioning reduced my forefoot pain significantly.”
Best for: mild cavus foot conservative management; lateral forefoot cushioning; high-arch pain reduction
Not ideal for: rigid cavovarus requiring custom lateral wedge orthotic; post-surgical phase
Disclosure: We earn a commission at no extra cost to you.
Ossur Form Fit Ankle Brace
⭐ Highly Rated
Low-profile semi-rigid ankle brace providing lateral ankle support for cavus foot patients with chronic ankle instability — fits inside most athletic shoes without bulk.
Dr. Tom says: “Essential for my high-arch ankle — the lateral support prevents the sprains I used to get constantly.”
Best for: cavus foot lateral ankle instability management; recurrent ankle sprains; sport return ankle protection
Not ideal for: post-surgical ankle reconstruction; severe instability requiring rigid immobilization
Disclosure: We earn a commission at no extra cost to you.
✅ Pros / Benefits
- The Coleman block test rapidly determines flexible vs. rigid cavovarus, directly guiding surgical planning
- Identifying neurological causes like CMT allows proactive genetic counseling and early management of systemic disease
- Comprehensive surgical reconstruction addresses all deformity components simultaneously with excellent long-term outcomes
❌ Cons / Risks
- Progressive CMT-related cavus foot requires ongoing surgical management as neuropathy advances
- Recurrent ankle sprains from untreated cavovarus lead to chronic lateral ligament incompetence and peroneal tendon tears
- Conservative orthotics manage symptoms but do not correct structural cavovarus — eventual surgical correction is needed for significant deformity
Dr. Tom Biernacki’s Recommendation
Cavus foot is one of the most intellectually interesting problems in podiatric surgery because the deformity is driven by muscle imbalance, and understanding which muscles are weak and which are over-pulling tells you exactly what procedures to perform. The Coleman block test is elegant — it tells you in 30 seconds whether the problem is driven by the forefoot or the hindfoot. My approach is to do a hands-on exam plus imaging when needed including neurological workup on any bilateral case, get standing foot and ankle X-rays, do the Coleman block, and build a surgical plan from there. These patients do very well with the right combination of procedures.
— Dr. Tom Biernacki, DPM | Board-Certified Podiatric Surgeon | Balance Foot & Ankle
Frequently Asked Questions
What causes high arch feet?
About 60–70% of bilateral high arch feet (pes cavus) have a neurological cause, most commonly Charcot-Marie-Tooth disease. The remaining cases are idiopathic or post-traumatic.
Can high arch feet be treated without surgery?
Mild cavus foot is managed well with lateral wedge orthotics, ankle bracing, and cushioned footwear. Significant deformity with recurrent instability and structural problems typically requires surgical correction.
Does high arch cause ankle sprains?
Yes — hindfoot varus from cavus foot pre-positions the ankle in inversion, dramatically increasing the risk of lateral ankle sprains with every step on uneven terrain.
Is Charcot-Marie-Tooth disease always associated with high arches?
CMT is the most common cause of bilateral progressive high arch feet, but not all CMT patients develop significant cavus deformity. The degree of arch elevation depends on which specific muscles are affected.
How long is recovery after cavus foot surgery?
Recovery from comprehensive cavovarus reconstruction takes 3–6 months. Individual component procedures have varying timelines depending on osteotomies and tendon transfers involved.
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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.
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Our podiatry team serves patients throughout Michigan including Howell, Brighton, and Bloomfield Hills. If you’re dealing with heel pain, ingrown toenails, or a foot injury, we have same-day appointment availability.
OrthoInfo – AAOS: Cavus Foot (High-Arched Foot)
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Dr. Tom Biernacki, DPM is a board-certified foot & ankle surgeon (ABFAS & ABPM) at Balance Foot & Ankle Specialists in Southeast Michigan. With over a decade of clinical experience, he specializes in heel pain, bunions, diabetic foot care, sports injuries, and minimally invasive surgery. Dr. Biernacki is a member of the APMA and ACFAS, and his patient education content on MichiganFootDoctors.com and YouTube has made him one of the most-followed foot & ankle educators on YouTube.