Medically reviewed by Dr. Tom Biernacki, DPM · Board-Certified Podiatric Surgeon · Last reviewed: April 2026 · Editorial Policy
Quick Answer
Posterior Tibial Tendon Dysfunction (PTTD) — Adult Fla relates to tendon injury — typically caused by overuse or sudden strain. Most patients improve in 6-12 weeks with conservative care. Same-week appointments in Howell + Bloomfield Twp: (810) 206-1402.
Medically Reviewed by Dr. Tom Biernacki, DPM — Board-Certified Podiatrist, Balance Foot & Ankle Specialists, Michigan. Last updated April 2026.
What Is Posterior Tibial Tendon Dysfunction?
Posterior tibial tendon dysfunction (PTTD) is the leading cause of acquired adult flatfoot — a progressive condition in which the posterior tibial tendon (PTT) degenerates, elongates, and eventually fails, causing the arch to collapse, the heel to evert, and the forefoot to abduct outward. Unlike congenital flat feet (present from childhood), PTTD develops in adults, typically in middle-aged women and active individuals, and progressively worsens without treatment — eventually leading to rigid flatfoot deformity and ankle arthritis. Early diagnosis and treatment is critical; at Balance Foot & Ankle in Howell and Bloomfield Hills, Michigan, Dr. Tom Biernacki, DPM provides comprehensive PTTD evaluation. Call (810) 206-1402.
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Anatomy — Why the Posterior Tibial Tendon Is Critical
The posterior tibial tendon runs from the tibialis posterior muscle, behind the medial malleolus, and inserts at the navicular bone and spring ligament complex. It is the primary dynamic support of the medial arch — at each step, it inverts the hindfoot, locks the midtarsal joints, and acts as a rigid lever for push-off. When it degenerates and elongates (typically from chronic overload in a pronating foot), it can no longer support the arch, and the spring ligament eventually attenuates under the repetitive load. Once the spring ligament fails, the deformity progresses rapidly and becomes rigid.
PTTD Stages — Johnson-Strom Classification
Stage I: tendinopathy without elongation or deformity — medial ankle pain and swelling, no flatfoot. Flexible arch, normal hindfoot alignment. Single-heel-rise test: able to perform. Stage II: tendon elongation/partial tear — flexible flatfoot deformity (corrects passively), valgus heel, forefoot abduction (“too many toes” sign laterally). Single-heel-rise: weak or unable. Most patients present at Stage II. Stage III: rigid flatfoot — fixed valgus heel deformity that cannot be passively corrected. Subtalar arthritis. Significant functional impairment. Stage IV: valgus tilt of the talus in the ankle joint — ankle arthritis, severe deformity. Stage I–II can be managed conservatively; Stage III–IV typically requires surgical reconstruction.
Conservative Treatment — Stage I and Early Stage II
Conservative PTTD management is highly effective when initiated at Stage I or early Stage II and must be aggressive: rigid custom orthotics (UCBL or Arizona AFO) — the most critical intervention, providing medial arch support and hindfoot varus correction that offloads the diseased tendon; immobilization in a CAM boot for 6–8 weeks during acute tendinopathy flares; MLS laser therapy for tendon inflammation reduction; physical therapy for tibialis posterior strengthening (eccentric toe raises on an inclined surface); and activity modification to eliminate running and high-impact loading during active tendinopathy. Conservative treatment success rate in Stage I–II: 70–80% with compliance. Do not continue conservative treatment beyond 3 months without radiographic and clinical evidence of improvement — progression to rigidity during this window closes the window for tendon-preserving surgery.
Surgical Reconstruction — Stage II and III
Surgical reconstruction for Stage II PTTD includes: flexor digitorum longus (FDL) tendon transfer (the gold standard — transfers a nearby tendon to replace PTT function); medializing calcaneal osteotomy (shifting the heel bone medially to restore normal hindfoot alignment); and spring ligament repair. These procedures are performed together in most Stage II cases. Stage III: subtalar arthrodesis (fusion of the subtalar joint) restores alignment in the rigid flatfoot. Stage IV: tibiotalocalcaneal arthrodesis may be required. Recovery from Stage II surgery: 8–10 weeks non-weight-bearing, 4–6 months to return to light activity, 9–12 months to full recovery.
The Key Warning Sign — “Too Many Toes”
The most important self-assessment for PTTD: stand behind your feet (or have someone observe from behind) and look at how many toes are visible lateral to the heel. Normally, 1–2 toes are visible from behind. In PTTD, 3 or more toes become visible as the forefoot abducts (“too many toes” sign). Combined with inability to do a single-leg heel rise on the affected side, these two findings in a patient with medial ankle pain are highly diagnostic of Stage II PTTD. Do not wait — see a podiatrist promptly if you identify these signs.
Red Flags — Seek Immediate Evaluation
Seek urgent evaluation for: rapid onset of unilateral flatfoot in a previously normal arch (acute PTT rupture — surgical emergency for best outcomes); inability to perform a single-leg heel rise; severe medial ankle swelling and pain after ankle trauma; or rapidly progressive deformity over weeks to months. The window for tendon-preserving surgery is limited — Stage II PTTD that progresses to Stage III cannot be reversed with tendon transfer surgery alone.
PTTD Treatment in Howell & Bloomfield Hills Michigan
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Dr. Tom Biernacki, DPM provides comprehensive PTTD evaluation including weight-bearing X-rays, in-office ultrasound, and MRI coordination at Balance Foot & Ankle — serving Howell, Brighton, Bloomfield Hills, Troy, Auburn Hills, West Bloomfield, and all Southeast Michigan. Book your evaluation or call (810) 206-1402.
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Our board-certified podiatrists treat this condition at two convenient locations. Same-day appointments often available.
More Podiatrist-Recommended Flat Feet Essentials
PowerStep Pinnacle Insole
Top orthotic for flat feet — lifts the collapsed arch and controls pronation.
Stability Running Shoe
New Balance Fresh Foam X 860 — designed for overpronators with flat feet.
Supportive Stability Shoe
Brooks Adrenaline GTS 25 — gold-standard stability shoe for flat feet.
As an Amazon Associate, Balance Foot & Ankle earns from qualifying purchases. Product recommendations are based on clinical experience; prices and availability shown above update live from Amazon.
When to See a Podiatrist
Painful flat feet in adults can signal posterior tibial tendon dysfunction — a progressive condition that needs early intervention to avoid surgery. Balance Foot & Ankle evaluates adult flatfoot with weight-bearing imaging and custom orthotic prescriptions. Catching PTTD at stage 1-2 makes the difference between a brace and a reconstruction.
Call Balance Foot & Ankle: (810) 206-1402 · Book online · Offices in Howell & Bloomfield Hills
Differential Diagnosis: What Else Could It Be?
Not every case of posterior tibial tendon dysfunction (pttd) is straightforward. In our clinic we routinely rule out three look-alike conditions before confirming the diagnosis. If your symptoms don’t match the classic presentation, one of these may explain the pain — which is why physical exam matters more than self-diagnosis.
| Condition | How It Differs |
|---|---|
| Congenital flat foot | Lifelong, usually bilateral, no pain, normal single-leg heel-rise test. |
| Tarsal coalition | Rigid flat foot, adolescent/young adult onset, peroneal spastic flat foot, coalition visible on CT. |
| Charcot arthropathy | Diabetic with neuropathy, warm swollen midfoot, progressive collapse, temperature differential >2°C — URGENT. |
Red Flags — When to See a Podiatrist Now
Seek same-day evaluation at Balance Foot & Ankle if you notice any of the following:
- Sudden collapse of the arch in an adult
- Inability to perform a single-leg heel-rise
- Warm red swollen midfoot (rule out Charcot)
- Progressive deformity over weeks-months
Call (810) 206-1402 or request an appointment. Our Howell and Bloomfield Hills offices reserve same-day slots for urgent foot and ankle issues.
In Our Clinic: What We See
Clinical perspective from Dr. Tom Biernacki, DPM — Balance Foot & Ankle, Howell & Bloomfield Hills, MI:
In our clinic, adult acquired flatfoot from PTTD typically presents in women over 40, often with recent weight gain or a period of increased standing. They describe medial ankle pain and progressive “collapse” of the arch on one side. The gold-standard exam finding is an inability to perform a single-leg heel-rise on the affected side — the tendon can no longer invert the heel into a rigid lever. Early PTTD is staged and treated with custom orthoses and bracing, but progressive disease (Stage III-IV) typically requires surgical reconstruction to prevent rigid deformity.
In-Office Treatment at Balance Foot & Ankle
When conservative care isn’t enough, Dr. Tom Biernacki and the team at Balance Foot & Ankle offer advanced, same-day options — including Flat Feet Treatment Michigan at our Howell and Bloomfield Hills clinics.
Same-day appointments available. Call (810) 206-1402 or book online.
Pros & Cons of Conservative Care for foot care
Advantages
- ✓ Conservative care first
- ✓ Same-week appointments
- ✓ Multiple insurance accepted
Considerations
- ✗ Self-treatment can mask issues
- ✗ See a podiatrist if pain >2 weeks
Dr. Tom’s Recommended Products for foot care
Affiliate disclosure: As an Amazon Associate, Balance Foot & Ankle earns from qualifying purchases. We only recommend products we use with patients.
Footnanny Heel Cream Dr. Tom’s Pick
Best for: Daily moisturizer for cracked heels
Ready to Get Back on Your Feet?
Same-day appointments in Howell + Bloomfield Twp. Most insurance accepted. Dr. Tom Biernacki, DPM & team.
Book Today — Same-Day Appointments Available
Call Now: (810) 206-1402
About Your Care Team at Balance Foot & Ankle
Dr. Tom Biernacki, DPM · Board-Certified Foot & Ankle Surgeon. Specializes in conservative-first care, minimally invasive bunion surgery, and complex reconstruction.
Dr. Carl Jay, DPM · Accepting new patients. Specializes in sports medicine, athletic injuries, and routine podiatric care.
Dr. Daria Gutkin, DPM, AACFAS · Accepting new patients. Specializes in surgical reconstruction and pediatric podiatry.
Locations: 4330 E Grand River Ave, Howell, MI 48843 · 43494 Woodward Ave Suite 208, Bloomfield Twp, MI 48302
Hours: Mon–Fri 8:00 AM – 5:00 PM · (810) 206-1402
Dr. Hoy’s Complete Pain Relief Line — Dr. Tom’s Picks (2026)
Dr. Hoy’s Natural Pain Relief is Dr. Tom Biernacki, DPM’s #1 prescription topical pain relief for plantar fasciitis, Achilles tendonitis, foot pain, knee pain, and back pain. Cleaner formula than Voltaren or Biofreeze — safe for diabetics + daily long-term use without 30-day limits. Below is the complete Dr. Hoy’s product line, organized by use case.
Dr. Hoy’s Natural Pain Relief Gel (4oz Tube)Dr. Tom’s #1 Brand
The flagship Dr. Hoy’s — menthol-based natural pain relief gel. The bottle Dr. Tom hands every plantar fasciitis patient on visit one. Cleaner formula than Voltaren or Biofreeze.
- Menthol-based natural formula
- No greasy residue
- Safe for diabetics
- Fast cooling relief 5-10 min
- Daily long-term use safe
- Pricier than Biofreeze
- Strong menthol scent at first
Dr. Hoy’s Natural Pain Relief Gel (8oz Pump Bottle)Dr. Tom’s #1 Brand
8oz pump bottle — same formula as the 4oz tube but 2x the value. Best for athletes, families, or chronic pain patients who use it daily.
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- 2x value of 4oz
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- Easy pump dispensing
- Larger size
- Pricier upfront
Dr. Hoy’s Arnica Boost Pain ReliefDr. Tom’s #1 Brand
Dr. Hoy’s + arnica boost — for bruising, swelling, post-injury inflammation. Adds arnica’s anti-inflammatory power to the standard menthol formula.
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Dr. Hoy’s Natural Pain Relief Roll-OnDr. Tom’s #1 Brand
Same Dr. Hoy’s formula in a roll-on stick — no greasy hands, no mess, perfect for gym bags and travel. TSA-friendly.
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Dr. Hoy’s Pain Relief Gel — 3-Pack BundleDr. Tom’s #1 Brand
3-pack of Dr. Hoy’s 4oz tubes — best per-tube price for chronic pain patients, families, or anyone who uses it daily.
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- Family-sized
- Larger upfront cost
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Top 10 Premade Orthotics — Dr. Tom’s Picks (2026)
Dr. Tom Biernacki, DPM has tested 60+ over-the-counter orthotic insoles in his Michigan podiatry practice over the past 15 years. Below are the top 10 he prescribes most often — ranked by clinical results, build quality, and patient feedback. PowerStep + CURREX brands are Dr. Tom’s #1 prescription brands — built by podiatrists, with biomechanical features (lateral wedge, deep heel cradle, dual-density EVA) that 90% of OTC insoles lack.
Dr. Tom Biernacki, DPM is a board-certified podiatrist + Amazon Associate. Picks shown are products he prescribes to patients at Balance Foot & Ankle Specialists. We earn a commission on qualifying purchases at no extra cost to you. All products independently tested + reviewed. Last verified: April 28, 2026.
PowerStep Pinnacle MaxxDr. Tom’s #1 Brand
The most prescribed OTC orthotic in podiatry. Lateral wedge corrects overpronation that causes 90% of plantar fasciitis. Deep heel cradle stabilizes the ankle.
- Lateral wedge corrects pronation
- Deep heel cradle
- Dual-density EVA
- Trim-to-fit
- Used by 10,000+ podiatrists
- Trim required
- 5-7 day break-in
PowerStep Original Full LengthDr. Tom’s #1 Brand
The original PowerStep — flexible semi-rigid arch with deep heel cradle. The right choice for neutral feet that need everyday support without the lateral wedge.
- Flexible semi-rigid arch
- Deep heel cradle
- Fits dress shoes
- 30-day guarantee
- APMA-accepted
- Less aggressive than Pinnacle
- No lateral wedge for overpronation
PowerStep Pulse MaxxDr. Tom’s #1 Brand
Built for runners + athletes who need maximum support during high-impact activity. Engineered for forefoot strike + lateral motion.
- Sport-specific cushioning
- Lateral wedge for runners
- Antimicrobial top cover
- Shock-absorbing forefoot
- Pricier than Pinnacle
- Best for athletes only
CURREX RunProDr. Tom’s #1 Brand
German-engineered insole with 3 arch heights (Low, Med, High) for custom fit. Carbon-reinforced heel + dynamic forefoot.
- 3 arch heights for custom fit
- Carbon-reinforced heel
- Sport-specific zones
- Premium materials
- Pricier than PowerStep
- 7-10 day break-in
CURREX EdgeProDr. Tom’s #1 Brand
For hikers, skiers, and high-impact athletes — reinforced shank prevents foot fatigue on steep descents + uneven terrain.
- Reinforced shank
- 3 arch heights
- Cold-weather friendly
- Carbon plate
- Stiff feel — not for casual
- Pricier
CURREX SupportSTPDr. Tom’s #1 Brand
For nurses, retail, and standing professions — the most supportive CURREX with deep heel cup + maximum medial support.
- Maximum medial support
- Deep heel cup
- 12-hour shift tested
- Slip-proof
- Stiffest CURREX option
- Pricier
PowerStep Pinnacle
Firm, structured arch support — the right choice ONLY for high-arched (cavus) feet. Wrong choice for flat feet.
- Strong structured arch
- Deep heel cup
- Long-lasting (5+ years)
- Firm — not for flat feet
- No lateral wedge
Vionic OrthoHeel Active Insole
APMA-accepted, podiatrist-designed casual insole. Best for adding mild arch support to dress shoes + walking shoes.
- APMA-accepted
- Slim profile
- Antimicrobial top
- Less support than PowerStep
- No lateral wedge
Sof Sole Athlete
Budget athletic insole with neutral arch + gel forefoot. Decent value if you need a quick replacement.
- Affordable
- Gel forefoot
- Antimicrobial
- Wears out in 6 months
- No structured arch
Spenco Polysorb Total Support
Mid-range insole with 5-zone polysorb cushioning. Decent support for standing professions.
- 5-zone cushioning
- Trim-to-fit
- Mid-price point
- Less stable than PowerStep
- No lateral wedge
Dr. Tom’s Top 3 — The Premium Foot Pain Stack (2026)
If you only buy three things for foot pain, get these. PowerStep + CURREX orthotics correct the underlying foot mechanics, and Dr. Hoy’s pain gel delivers fast topical relief. This is the exact stack Dr. Tom Biernacki, DPM gives his Michigan podiatry patients on visit one — over 10,000 patients have used this exact combination.
Dr. Tom Biernacki, DPM is a board-certified podiatrist + Amazon Associate. Picks shown are products he prescribes to patients at Balance Foot & Ankle Specialists. We earn a commission on qualifying purchases at no extra cost to you. All products independently tested + reviewed for 30+ days minimum. Last verified: April 28, 2026.
PowerStep Pinnacle MaxxDr. Tom’s #1 Brand
Dr. Tom’s most-prescribed OTC orthotic. Lateral wedge corrects overpronation that causes 90% of foot pain. Deep heel cradle stabilizes the ankle. Built by podiatrists, used by patients worldwide.
- Lateral wedge corrects pronation
- Deep heel cradle stabilizes ankle
- Dual-density EVA — comfort + support
- Trim-to-fit any shoe
- Used by 10,000+ podiatrists
- Trim-to-size required
- 5-7 day break-in for some
CURREX RunProDr. Tom’s #1 Brand
3 arch heights for custom fit (Low/Med/High). Carbon-reinforced heel + dynamic forefoot — the closest OTC orthotic to a $500 custom orthotic. Engineered in Germany.
- 3 arch heights for custom fit
- Carbon-reinforced heel cup
- Dynamic forefoot zone
- Premium German engineering
- Sport-specific support
- Pricier than PowerStep
- 7-10 day break-in
Dr. Hoy’s Natural Pain Relief GelDr. Tom’s #1 Brand
Menthol-based natural pain relief — Dr. Tom’s #1 brand for fast relief without greasy residue. Safe for diabetics + daily use. Cleaner formula than Voltaren or Biofreeze.
- Menthol-based natural formula
- No greasy residue
- Safe for diabetics
- Fast cooling relief — 5-10 minutes
- Cleaner ingredient list than Biofreeze
- Pricier than Biofreeze
- Strong menthol scent at first
When to See a Podiatrist for This Type of Pain
If your pain has lasted longer than 3-4 weeks despite home treatment, is interfering with daily activities, or includes redness, swelling, or warmth, it’s time to schedule an evaluation. At Balance Foot & Ankle Specialists, Dr. Tom Biernacki and his team specialize in same-day diagnosis and conservative treatment plans tailored to your activity level and goals. Most patients are walking pain-free within 4-6 weeks of starting our protocol.
Red flags that warrant immediate care: sharp pain after a fall, inability to bear weight, visible deformity, numbness or tingling, fever with foot pain, or any open wound on a diabetic foot. Don’t wait — early treatment dramatically improves outcomes and prevents chronic complications.
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)