| Test | Method | Result Interpretation | Clinical Implication |
|---|---|---|---|
| Coleman Block Test | Patient stands on a 1-inch block under lateral foot only; heel varus assessed | If heel corrects to valgus or neutral → flexible (forefoot-driven) | Flexible: forefoot surgery corrects hindfoot; Rigid: hindfoot osteotomy needed |
| Silfverskiöld Test | Ankle dorsiflexion with knee straight vs bent | <10° dorsiflexion with knee straight but improves with knee bent = gastroc tightness | Gastrocnemius recession indicated if tight gastroc driving equinus |
| Single-Heel Rise Test | Patient rises on single leg heel; observe heel inversion | Normal: heel inverts (varus) with heel rise. Absence = PTT failure | Concurrent PTT dysfunction identified |
| Peroneal Strength Test | Resisted eversion strength | Weakness = peroneal atrophy (CMT pattern) | Guides AFO decision for foot drop component |
| Deformity Component | Surgical Procedure | Purpose | When to Perform |
|---|---|---|---|
| Tight plantar fascia (primary deforming force) | Plantar fascia release (Steindler release) | Eliminates primary deforming force; allows forefoot to drop | First step in flexible cavus correction |
| Plantarflexed 1st ray | 1st metatarsal dorsiflexion osteotomy (dorsal closing wedge) | Raises 1st metatarsal head; corrects forefoot equinus | After fascia release; forefoot-driven deformity |
| Heel varus | Calcaneal osteotomy (Dwyer — lateral closing wedge) | Corrects calcaneal varus to neutral position | Rigid hindfoot varus not corrected by forefoot surgery |
| Peroneal weakness / foot drop | Posterior tibial tendon transfer to dorsum | Restores dorsiflexion; eliminates foot drop | Significant peroneal weakness; dropfoot |
| Severe rigid cavovarus | Triple arthrodesis | Permanent correction of rigid deformity in plantigrade position | Failed prior surgery; severe rigid deformity; advanced age |
Quick answer: Treatment for high arch foot cavus treatment follows a stepwise approach: 1) conservative care first (rest, ice, supportive footwear, OTC anti-inflammatories), 2) physical therapy and targeted exercises, 3) in-office treatments (injections, custom orthotics) if conservative fails at 4-6 weeks, 4) surgery for refractory cases. Most patients resolve at step 1 or 2. Call (810) 206-1402.
Medically Reviewed | Dr. Tom Biernacki, DPM | Board-Certified Podiatric Surgeon | Balance Foot & Ankle, Michigan
Quick Answer: Cavus foot (high-arched foot) is characterized by an excessively high medial arch that rigidly cannot be corrected with weight-bearing. It causes lateral column overload (calluses under the fifth metatarsal), ankle instability, stress fractures, and hammertoe deformity. A neurological cause should be investigated in all new cavus foot presentations. Treatment ranges from accommodative orthotics to complex surgical reconstruction.
What Is Cavus Foot?
Cavus foot describes an abnormally high medial arch that is rigid — unlike the normal foot where the arch partially flattens with weight-bearing, a cavus foot maintains or increases its arch height under load. The foot typically shows: high medial arch, plantar-flexed first ray (big toe side depressed), calcaneus in varus (heel tilted inward), and claw toe deformity. The result is a rigid foot that cannot absorb shock effectively, concentrating load on the heel and the fifth metatarsal.
Causes
Neurological causes are responsible for approximately 60-70% of cavus feet — Charcot-Marie-Tooth (CMT) disease is the most common (hereditary peripheral neuropathy); other causes include Friedreich’s ataxia, spinal cord tumors, and polio. Idiopathic cavus (no identified neurological cause) accounts for the remainder. Any new presentation of cavus foot deformity — especially in a young patient — warrants neurological evaluation. Family history of cavus feet suggests hereditary neuropathy.
Problems Caused by Cavus Foot
Lateral overload: the rigid cavus foot concentrates weight on the lateral column — fifth metatarsal callus and stress fractures are common. Ankle instability: heel varus positioning of the subtalar joint places the ankle in a vulnerable position for inversion sprains — patients with cavus feet have significantly higher ankle sprain rates. Plantar fasciitis: the tight plantar fascia in cavus feet increases plantar fascial tension. Peroneal tendon problems: increased lateral foot stress loads the peroneal tendons. Hammertoe and claw toe deformity: intrinsic muscle imbalance causes toe deformity.
Treatment
Accommodative orthotics: lateral heel post (to correct heel varus), first ray elevation (to unload the plantar-flexed first metatarsal), and full-length cushioning for shock absorption. The goal is to create a more even pressure distribution across the plantar foot. Appropriate footwear: extra-depth, wide-width shoes; avoid minimalist and low-heel-drop shoes. Ankle bracing: custom AFO for significant ankle instability. Physical therapy: peroneal strengthening and proprioceptive training reduces ankle sprain risk. Surgical reconstruction: for severe symptomatic cavus not managed conservatively. Plantar fascia release (Steindler stripping), first metatarsal dorsiflexion osteotomy, calcaneal osteotomy (lateral closing wedge to correct varus), and tendon transfers address the deformity components systematically.
Dr. Tom's Product Recommendations
CURREX RunPro Insoles
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Profile-matched arch support for cavus feet — accommodates the high arch and provides lateral forefoot cushioning for fifth metatarsal overload.
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CURREX
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Doctor Hoy’s Natural Pain Relief Gel
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Topical anti-inflammatory for the lateral foot callus pain and plantar fascia tightness common in cavus feet.
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Doctor Hoy’s
4.4
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✅ Pros / Benefits
- Accommodative orthotics significantly reduce lateral foot loading and discomfort
- Ankle bracing effectively reduces the high sprain rate in cavus feet
- Surgical reconstruction addresses the root deformity when conservative care insufficient
❌ Cons / Risks
- Neurological causes (CMT) are progressive — deformity worsens over time
- Surgical reconstruction is complex with long recovery (9-12 months)
- Standard insoles often inadequate — custom orthotics typically required
Dr. Tom Biernacki’s Recommendation
Cavus foot is one of the conditions where I always do a neurological screening — CMT disease is the most common cause, and it’s hereditary. If I see a patient with new cavus deformity, I ask about family history and often refer for EMG/nerve conduction studies before we focus entirely on the foot. Once the neurological cause is addressed (or ruled out), we can manage the foot mechanics well with custom orthotics, ankle bracing, and peroneal strengthening.
— Dr. Tom Biernacki, DPM | Board-Certified Podiatric Surgeon | Balance Foot & Ankle
Frequently Asked Questions
What problems does high arches cause?
Cavus foot causes lateral foot overload (fifth metatarsal callus and stress fractures), ankle instability (2-3x higher sprain rate), plantar fasciitis from tight plantar fascia, hammertoe/claw toe deformity, and peroneal tendon stress. These problems are managed with accommodative orthotics and, when severe, surgical correction.
Can high arches be corrected?
Conservative management reduces symptoms significantly but doesn’t change the underlying arch shape. Surgical reconstruction can correct the deformity permanently, but is reserved for severe, refractory cases. Most patients are managed effectively with custom orthotics and appropriate footwear long-term.
Does high arch foot get worse with age?
Neurological cavus (CMT, etc.) typically progresses as the underlying neuropathy worsens. Idiopathic cavus is generally stable. Deformity consequences (ankle arthritis, recurrent sprains, claw toes) accumulate over decades — early orthotic management slows this progression.
Michigan Foot Pain? See Dr. Biernacki In Person
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When Shoes Aren’t Enough — Dr. Tom’s Top 9 Orthotics
About 30% of patients I see for foot pain need MORE than a great shoe — they need a structured insole. Below: my complete 2026 orthotic ranking with pros, cons, and the specific patient I’d give each one to.
Best All-Purpose Orthotic for Most Patients
Semi-rigid arch shell + dual-layer cushion + deep heel cup. The orthotic I’ve fitted to more patients than any other for 15 years. APMA-accepted. Trim-to-fit design works in athletic shoes, casual shoes, and most work boots.
✓ Pros
- Semi-rigid arch shell provides true biomechanical correction
- Deep heel cup centers the heel and reduces lateral instability
- Dual-layer cushion (top + bottom) lasts 9-12 months daily wear
- Available in 8 sizes for precise fit
- APMA-accepted and clinically validated
- APMA-accepted with superior cushioning versus rigid alternatives
✗ Cons
- Too thick for most dress shoes (use ProTech Slim instead)
- Some break-in period required (3-7 days for arch tolerance)
- Not enough correction for severe pes planus or rigid pes cavus
Dr. Tom’s Recommendation: If a patient has run-of-the-mill plantar fasciitis, mild flat feet, or arch fatigue, this is the first orthotic I try. Better value than most premium alternatives for 90% of patients, which is why it’s the first orthotic I reach for in the clinic. Sub-$50 typically.
Maximum Motion Control · Flat Feet & Severe Over-Pronation
PowerStep’s most aggressive stability orthotic. Adds a 2°-7° medial heel post on top of the standard PowerStep platform — designed specifically for flat-footed patients and severe pronators who need real corrective force.
✓ Pros
- 2°-7° medial heel post adds aggressive pronation control
- Same trusted PowerStep arch shell, more correction
- Built specifically for flat-foot biomechanics
- Excellent for posterior tibial tendon dysfunction (PTTD)
- Removable top cover for cleaning
✗ Cons
- Too aggressive for neutral-arch patients
- Needs longer break-in (10-14 days) due to stronger correction
- Adds 2-3 mm of stack height — won’t fit slim dress shoes
Dr. Tom’s Recommendation: When a patient comes in with significant flat feet AND symptoms (heel pain, arch pain, knee pain), the Original PowerStep isn’t aggressive enough. The Maxx is what gets prescribed. About 25% of my flat-footed patients end up here.
Low-Profile · Fits Dress Shoes & Narrow Casuals
3 mm slim profile with podiatrist-designed tri-planar arch technology. Engineered specifically to fit inside dress shoes, oxfords, loafers, and women’s flats without crowding the toe box. Vionic was founded by an Australian podiatrist.
✓ Pros
- 3 mm slim profile (vs 7-10 mm for standard orthotics)
- Tri-planar arch technology adds support without bulk
- Built-in deep heel cup despite slim design
- Fits dress shoes WITHOUT having to remove the factory insole
- Trim-to-fit · APMA-accepted
✗ Cons
- Less arch support than full-volume orthotics
- Top cover wears faster than thicker alternatives
- Not enough correction for severe foot deformities
Dr. Tom’s Recommendation: My default when a patient says ‘I need orthotics but I have to wear dress shoes for work.’ Slim enough to fit in oxfords and pumps without the heel sliding out. The single highest-impact change you can make for office workers with foot pain.
Built-In Metatarsal Pad · Morton’s Neuroma · Ball-of-Foot Pain
Standard Pinnacle orthotic with a built-in metatarsal pad positioned proximal to the metatarsal heads — the exact location that offloads neuromas and metatarsalgia. No need for separate met pads or pad placement guesswork.
✓ Pros
- Built-in met pad eliminates DIY pad placement errors
- Specifically designed for Morton’s neuroma + metatarsalgia
- Same trusted PowerStep arch + heel cup platform
- Top cover protects sensitive forefoot skin
- Faster relief than orthotics + add-on met pads
✗ Cons
- Met pad position is fixed (can’t fine-tune individual placement)
- Some patients with very small or very large feet need custom
- Slightly thicker than the standard Pinnacle
Dr. Tom’s Recommendation: If a patient has Morton’s neuroma, sesamoiditis, or generalized ball-of-foot pain (metatarsalgia), this saves a clinic visit and a prescription. The built-in pad placement is anatomically correct for 80% of feet. Way better than DIY met pads.
Adaptive Dynamic Arch · Athletic & Daily Wear
Currex’s flagship adaptive arch technology — the orthotic flexes with your gait instead of fighting it. Different stiffness zones along the length give you targeted support at the heel, midfoot, and forefoot. Available in three arch heights (low/medium/high).
✓ Pros
- Dynamic flex zones adapt to natural gait cycle
- Three arch heights ensure precise fit
- Lighter than rigid orthotics (no ‘heavy foot’ feel)
- Excellent for runners and athletic walkers
- European podiatric design (German engineering)
✗ Cons
- More expensive than PowerStep Original ($55-65 typically)
- Less aggressive correction than Pinnacle Maxx for severe cases
- Three arch heights means you must self-select correctly
Dr. Tom’s Recommendation: I started recommending Currex three years ago for runners who said PowerStep felt ‘too rigid.’ The dynamic flex zones respect natural gait. Best for active patients who walk 8K+ steps daily and don’t need maximum motion control.
Running-Specific · Heel Strike + Forefoot Strike Compatible
Currex’s purpose-built running orthotic. The midfoot flex zone is positioned for runner’s gait mechanics, with a flared heel cushion for heel strikers and a forefoot rocker for midfoot/forefoot strikers. Tested on 1000+ runners during product development.
✓ Pros
- Designed by German biomechanics lab specifically for runners
- Dynamic arch flexes with running gait (not static like PowerStep)
- Three arch heights (low/medium/high)
- Reduces overuse injury risk in mid-distance runners
- Lightweight (no impact on cadence)
✗ Cons
- Premium price ($60-75)
- Not aggressive enough for severe over-pronators (use Pinnacle Maxx)
- Runner-specific design = less ideal for daily walking shoes
Dr. Tom’s Recommendation: If a patient runs 20+ miles per week and has plantar fasciitis or shin splints, this is the orthotic I prescribe. The dynamic flex zones respect running biomechanics in a way that no rigid PowerStep can match. Pricier but worth it for serious runners.
Cavus Foot & High-Arch Patients
Polyurethane base with a deeper heel cup and higher arch profile than PowerStep — built for cavus (high-arched) feet that need maximum cushion and support. The 5-zone cushioning system addresses the unique pressure points of high-arch feet.
✓ Pros
- Deeper heel cup centers the heel for cavus foot stability
- Higher arch profile fills the void under high arches
- 5-zone cushioning addresses cavus foot pressure points
- Polyurethane base lasts 12+ months
- Available in Wide width
✗ Cons
- Too tall/aggressive for normal or low arches
- Won’t fit slim dress shoes
- Pricier than PowerStep Original
- Some patients find the arch height uncomfortable initially
Dr. Tom’s Recommendation: Cavus foot patients are often misdiagnosed and given low-arch orthotics — that makes everything worse. Spenco’s Total Support has the arch profile that high-arch feet actually need. About 15% of my patients have cavus feet; this is what they wear.
Cushion Layer · Standing All Day · Gel Pressure Relief
NOT a true biomechanical orthotic — this is a cushion insole. But for patients who want gel pressure relief instead of arch correction (or to add ON TOP of factory insoles in work boots), this is the best gel option on Amazon.
✓ Pros
- Genuine gel cushioning (not foam pretending to be gel)
- Targeted gel waves under heel and ball of foot
- Trim-to-fit · works in most shoe types
- Sub-$15 price (most affordable option in this list)
- Massaging texture is genuinely soothing
✗ Cons
- ZERO arch support — this is cushion only
- Won’t fix plantar fasciitis or flat-foot issues
- Compresses faster than PowerStep (4-6 months)
- Top cover wears through in high-mileage applications
Dr. Tom’s Recommendation: I recommend these to patients who tell me ‘I just want my feet to stop hurting at the end of my shift’ and who don’t have a biomechanical issue. Construction workers, factory workers, retail. Pure cushion does the job for them.
Tight-Fitting Shoes · Cycling Shoes · Hockey Skates
Tread Labs Pace insole with firm orthotic arch support for flat feet and plantar fasciitis relief. The replaceable top cover design makes it one of the most durable picks in this guide — backed by a million-mile guarantee and recommended for tight-fitting athletic footwear.
✓ Pros
- Firm orthotic arch support shell (podiatrist-grade)
- Slim profile fits tight athletic footwear
- Lasts 12+ months daily wear
- Excellent for cycling shoes specifically
- Built-in odor-control treatment
✗ Cons
- Premium price ($45-55)
- Less cushion than PowerStep equivalents
- Not as aggressive correction as Pinnacle Maxx for flat feet
- The signature ‘heel cup feel’ takes 1-2 weeks to adapt to
Dr. Tom’s Recommendation: If you’re a cyclist with foot numbness, hot spots, or knee pain — this is the orthotic. The stabilizer cap solves cycling-specific biomechanical issues that no other orthotic addresses. Worth the premium for athletes.
None of these solving your foot pain?
Some patients (about 30%) need custom-molded prescription orthotics. We make 3D-scanned custom orthotics in our Howell and Bloomfield Hills offices — specifically built for your foot mechanics.
Schedule a Custom Orthotic Fitting →
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High Arch (Cavus) Foot Care
Dr. Tom’s Podiatrist-Recommended Products
The OTC orthotic Dr. Biernacki recommends most. Semi-rigid arch support with heel cradle — holds its shape unlike softer insoles. If you can’t budget custom orthotics ($400+), this is the entry point at $40-50.
Natural topical pain relief with arnica, menthol, and magnesium. We use this in our clinic for post-injection soreness — apply directly to the painful area 3-4x daily.
FTC Disclosure: As an Amazon Associate and Foundation Wellness affiliate, we earn from qualifying purchases. Dr. Biernacki only recommends products used in our clinic or personally vetted.
In-Office Treatment at Balance Foot & Ankle
If home treatment isn’t providing relief for your high arch foot cavus treatment, our podiatry team at Balance Foot & Ankle can help with same-day evaluations and advanced in-office care.
Same-day appointments available. (810) 206-1402
Dr. Tom Biernacki, DPM is a double board-certified podiatrist and foot & ankle surgeon 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 reached over one million views.
- Plantar Fasciitis: Diagnosis and Conservative Management (PubMed)
- Plantar Fasciitis (APMA)
- Diagnosis and Treatment of Plantar Fasciitis (PubMed / AAFP)
- Heel Pain (APMA)