Flexor hallucis longus tendinopathy hurts at the back of the ankle when pushing off — most commonly in dancers, runners, and patients with overpronation. The fix targets the underlying mechanics.
You’ve come to the right podiatry team. Dr. Tom Biernacki, DPM, FACFAS — board-certified foot & ankle surgeon with 3,000+ surgeries — explains exactly what FHL tendinopathy means and what works. Call (810) 206-1402 for same-day appointment at Howell or Bloomfield Hills.
Quick answer: Flexor Hallucis Longus Tendinopathy Big Toe Tendon Pain Michigan has multiple potential causes including mechanical, neurological, vascular, and inflammatory. The patterns we see most often are overuse, poorly-fitted shoes, and biomechanical imbalance. Red flags requiring urgent evaluation: warmth/redness (infection), inability to bear weight (fracture), and unilateral swelling without injury (DVT). Call (810) 206-1402.
Medically reviewed by Dr. Tom Biernacki, DPM · Board-Certified Podiatric Surgeon · Last reviewed: April 2026 · Editorial Policy
The most important clinical decision with Flexor Hallucis Longus Tendinopathy Big Toe Tendon Pain Michigan isn’t which treatment to start with — it’s identifying the correct subtype. That changes everything. Call (810) 206-1402.
Quick Answer
Flexor Hallucis Longus Tendinopathy — Big Toe Tendon P 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 Hills: (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.
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Medically Reviewed by Dr. Tom Biernacki, DPM — Board-Certified Podiatrist, Balance Foot & Ankle Specialists, Michigan. Last updated April 2026.
What Is Flexor Hallucis Longus Tendinopathy?
The flexor hallucis longus (FHL) is the tendon responsible for plantarflexing (curling down) the big toe and contributing to ankle push-off force. It originates in the posterior leg, passes through a fibro-osseous tunnel behind the medial ankle (the sustentaculum tali), and inserts at the base of the distal phalanx of the hallux. FHL tendinopathy is inflammation and degeneration of this tendon, most commonly at the fibro-osseous tunnel where it courses behind the medial ankle. It is particularly common in ballet dancers, gymnasts, and push-off athletes (sprinters, basketball players) who generate high FHL loading during repeated toe plantarflexion. At Balance Foot & Ankle in Howell and Bloomfield Hills, Michigan, Dr. Tom Biernacki, DPM evaluates FHL tendinopathy. Call (810) 206-1402.
Symptoms and Clinical Presentation
FHL tendinopathy causes deep posteromedial ankle pain — pain at the back and inside of the ankle, distinct from Achilles tendinopathy (posterior midline) and posterior tibial tendinopathy (medial ankle with arch collapse). Characteristic finding: “hallux saltans” or trigger toe — the big toe locks or catches during active flexion/extension at specific range positions as the thickened FHL tendon catches at the fibro-osseous tunnel. Palpation tenderness is located posterior to the medial malleolus along the FHL tunnel. Pain increases with active big toe plantarflexion resistance testing. In ballet dancers, the classic presentation is posterior ankle pain that increases en pointe and with relévé (rising onto toes).
Diagnosis
MRI with the ankle in plantar flexion position best visualizes FHL tendon signal change, thickening, and tunnel stenosis. Dynamic musculoskeletal ultrasound can demonstrate the trigger toe mechanism in real time — the tendon can be seen catching at the tunnel during active toe motion. Standard X-rays are typically normal but may show an os trigonum (accessory bone at the posterior talus) that can create additional posterior ankle impingement concurrent with FHL stenosis — posterior ankle impingement is an important differential. Diagnostic ultrasound-guided local anesthetic injection into the FHL sheath provides both diagnostic confirmation and temporary therapeutic relief.
Conservative Treatment
Conservative management for FHL tendinopathy: relative rest and activity modification, particularly eliminating the specific activities that load the FHL maximally (en pointe, bounding, toe-off sprinting); a cam boot or walking cast for 4–6 weeks for acute high-grade inflammation; physical therapy focusing on eccentric FHL strengthening and progressive return-to-activity protocol; and ultrasound-guided corticosteroid injection into the FHL sheath — provides significant temporary relief but carries risk of tendon weakening with repeated injections (limit to 1–2 per year). Custom orthotics with metatarsal padding to reduce terminal push-off force through the FHL. PRP injection is emerging as an alternative to corticosteroid for FHL tendinosis with early supporting evidence.
Surgical Treatment — FHL Release
When conservative management fails after 3–6 months, surgical FHL release (tunnel release) decompresses the fibro-osseous tunnel at the sustentaculum tali, eliminating the stenosis that causes the trigger toe and tendon impingement. The procedure can be performed endoscopically or through a small open incision. If a concurrent os trigonum is identified, it is typically removed at the same time. Recovery: 4–6 weeks in a cam boot, 3–4 months to full athletic activity. Outcomes are excellent in appropriately selected patients — 85–90% return to pre-injury activity level after FHL release.
FHL Tendinopathy Management in Howell & Bloomfield Hills Michigan
Dr. Tom Biernacki, DPM provides FHL tendinopathy evaluation with in-office diagnostic ultrasound and comprehensive conservative and surgical management 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.
💊 Dr. Tom’s Pick: Doctor Hoy’s Natural Pain Relief
📍 Located in Michigan?
Our board-certified podiatrists treat this condition at two convenient locations. Same-day appointments often available.
A topical pain relief gel I recommend to patients: arnica, camphor, and natural anti-inflammatories. No prescription needed. Apply directly to the painful area for fast-acting relief. Great for sore feet, heel pain, and joint discomfort.
View Doctor Hoy’s on Amazon →Affiliate disclosure: As an Amazon Associate, Balance Foot & Ankle earns from qualifying purchases.
👣 Dr. Tom’s Pick: PowerStep Pinnacle Insoles
The #1 OTC orthotic I prescribe most often. PowerStep Pinnacle provides clinical-grade arch support, cushioning, and heel stability — the same biomechanical correction as a custom orthotic at a fraction of the cost. Fits most shoe types.
View PowerStep Pinnacle on Amazon →Affiliate disclosure: As an Amazon Associate, Balance Foot & Ankle earns from qualifying purchases.
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4330 E Grand River Ave
Howell, MI 48843
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Max-cushion everyday shoe — podiatrist favorite for walking and running.
OOFOS Recovery Slide
Impact-absorbing recovery sandal — wear after long days on your 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
If foot or ankle pain has been bothering you for more than a few weeks, home care alone may not be enough. Balance Foot & Ankle offers same-week appointments at our Howell and Bloomfield Hills clinics — no referral needed in most cases. Bring your current shoes and a short list of symptoms and we’ll build you a treatment plan in one visit.
Call Balance Foot & Ankle: (810) 206-1402 · Book online · Offices in Howell & Bloomfield Hills
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
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Same-day appointments in Howell + Bloomfield Hills. Most insurance accepted. Dr. Tom Biernacki, DPM & team.
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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 Hills, 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.
- 8oz pump bottle
- 2x value of 4oz
- Same clean formula
- 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.
- Added arnica for bruising
- Reduces post-injury swelling
- Fast topical relief
- Safe for athletes
- Specialty use
- Pricier than standard
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.
- No greasy hands
- TSA-friendly
- Travel-sized
- Same Dr. Hoy’s formula
- Less product per use
- Pricier per oz
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.
- 3-pack bulk pricing
- Same flagship formula
- Stockpile value
- Family-sized
- Larger upfront cost
- Need storage space
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
Superfeet Green
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.
Frequently Asked Questions
When should I see a doctor?
See a podiatrist if pain persists past 2 weeks, prevents normal activity, or is accompanied by red-flag symptoms (warmth, swelling, numbness, inability to bear weight).
Can I treat this at home?
Mild cases respond to RICE protocol (rest, ice, compression, elevation), supportive shoes, and OTC anti-inflammatories. Persistent symptoms need professional evaluation.
How long does it take to heal?
Most soft tissue injuries resolve in 2-6 weeks with appropriate care. Bone injuries take 6-12 weeks. Chronic conditions need longer-term management.
In-Office Treatment at Balance Foot & Ankle
If home treatment isn’t providing relief for your tendon pain, 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
Our podiatrists treat the underlying cause, not just the symptom. Same-week appointments at our Howell and Bloomfield Hills, Michigan offices.
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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.