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Foot Tendons: Anatomy & Injuries 2026 | DPM

Medically reviewed by Dr. Tom Biernacki, DPM

Board-certified podiatric surgeon | Balance Foot & Ankle, Howell & Bloomfield Hills, MI
Last reviewed: May 2026

Quick answer: Foot Tendons can significantly impact your daily life and mobility. Our Michigan podiatrists provide expert evaluation and evidence-based treatment — from conservative care to minimally invasive procedures — to relieve your symptoms and restore function. Same-day appointments available in Howell and Bloomfield Hills, MI.

Foot Tendons - Michigan podiatrist, Balance Foot & Ankle
Foot Tendons treatment | Balance Foot & Ankle, Michigan

The foot has over 30 tendons that work together for every step — and pain in any one of them can dramatically affect gait. Knowing which tendon is involved is the first step toward treatment.

You’re in the right place. Dr. Tom Biernacki, DPM, FACFAS — board-certified foot & ankle surgeon with 3,000+ surgeries — explains exactly what foot tendons anatomy means and what works. Call (810) 206-1402 for same-day appointment at Howell or Bloomfield Hills.

Quick answer: Foot Tendons is a common foot/ankle topic that affects many patients. The 2026 evidence-based approach combines proper diagnosis, conservative-first treatment, and escalation only when needed. We treat this regularly at our Howell and Bloomfield Township practices. Call (810) 206-1402.

foot tendons - podiatrist guide from Balance Foot and Ankle
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Foot Tendons: Quick Answer

The foot has 13 named tendons that cross the ankle joint, divided into 4 functional groups: anterior (extensor) tendons that lift the foot and toes (tibialis anterior, EHL, EDL, peroneus tertius); lateral (peroneal) tendons that evert the foot (peroneus longus, peroneus brevis); deep posterior tendons that invert the foot and flex the toes (tibialis posterior, FDL, FHL); and the superficial posterior Achilles tendon group (gastroc + soleus combining into the Achilles). Plus 4 intrinsic tendon groups within the foot itself (toe flexors, toe extensors, peroneals continued, lumbricals). Knowing which tendon is causing your pain is critical because each requires different treatment — for example, posterior tibial tendinopathy needs medial-post orthotics while peroneal tendinopathy needs lateral wedging.

The 4 Functional Groups of Foot Tendons

Foot tendons are organized into 4 functional groups based on which compartment of the lower leg they originate from:

Anterior (extensor) group: Tibialis anterior, extensor hallucis longus (EHL), extensor digitorum longus (EDL), peroneus tertius. Function: dorsiflexion (lifting the foot up) and toe extension. Innervated by the deep peroneal nerve.

Lateral (peroneal) group: Peroneus longus, peroneus brevis. Function: eversion of the foot. Both run behind the lateral malleolus and insert on the lateral foot. Innervated by the superficial peroneal nerve.

Deep posterior group: Tibialis posterior (TP), flexor digitorum longus (FDL), flexor hallucis longus (FHL). Function: inversion, plantarflexion, toe flexion. All run behind the medial malleolus through the tarsal tunnel. Innervated by the tibial nerve.

Superficial posterior group: Gastrocnemius and soleus muscles join to form the Achilles tendon, which inserts on the calcaneus. Function: powerful plantarflexion (toe-off during gait). Innervated by the tibial nerve.

Tibialis Anterior — The Most Important Anterior Tendon

Origin: Lateral surface of the tibia. Course: Down the front of the shin, over the front of the ankle, across the dorsum of the foot. Insertion: Medial cuneiform and base of the 1st metatarsal.

Function: Primary dorsiflexor of the foot. Lifts the foot during the swing phase of gait. Decelerates the foot at heel strike (eccentric contraction) — preventing foot slap. Inverts the foot.

Common pathologies: Anterior tibialis tendinopathy (worse with running and uphill walking), tibialis anterior rupture (rare, usually in older patients with diabetes or steroid use, presents as foot drop), shin splints (medial tibial stress syndrome — primarily a periosteal reaction but the tibialis anterior is involved). See our anterior tibialis tendonitis guide.

Extensor Tendons (EHL, EDL) — Lift the Toes

Extensor hallucis longus (EHL): Originates from the middle fibula, inserts on the distal phalanx of the big toe. Lifts the big toe. Tested clinically by asking the patient to extend the big toe against resistance (L5 motor function check).

Extensor digitorum longus (EDL): Originates from the lateral tibial condyle, inserts on toes 2-5 distal phalanges. Lifts toes 2-5.

Common pathologies: Extensor tendinopathy from tight shoe lacing, top-of-foot pain in runners. Treatment: window lacing, supportive shoes, NSAIDs. Read our extensor tendonitis guide.

Peroneal Tendons — Lateral Stabilizers

Peroneus longus: Originates from the proximal fibula, runs behind the lateral malleolus, then crosses under the foot to insert on the medial cuneiform and 1st metatarsal. Function: eversion + plantarflexion + supports the lateral arch.

Peroneus brevis: Originates from the distal fibula, runs behind the lateral malleolus, inserts on the base of the 5th metatarsal. Function: eversion + plantarflexion.

Common pathologies: Peroneal tendinopathy (often after ankle sprains), peroneal tendon subluxation (the tendons slip in front of the lateral malleolus during dorsiflexion), peroneal tendon tear (longitudinal split tear of the peroneus brevis is most common — needs MRI). Treatment: orthotics with lateral wedging, NSAIDs, immobilization for 4-6 weeks if severe; surgical repair for refractory cases.

Posterior Tibial Tendon — The Arch Supporter

Origin: Posterior tibia and fibula. Course: Down the back of the shin, behind the medial malleolus, then forward to insert on the navicular and multiple midfoot bones.

Function: The MOST important tendon for arch support. Inverts the foot. Plantarflexes the foot. Locks the midtarsal joint during push-off, transforming the foot from a flexible shock absorber to a rigid lever.

Common pathologies: Posterior tibial tendon dysfunction (PTTD) is the leading cause of adult acquired flatfoot. Stages 1-2 respond to orthotics; stages 3-4 require surgical reconstruction. See our PTTD guide.

FHL and FDL — The Toe Flexors

Flexor hallucis longus (FHL): Often called “the dancer’s tendon” — flexes the big toe at toe-off and during ballet en pointe positions. Common pathology: FHL tendinopathy (especially in dancers); tenosynovitis at the posterior ankle. Read our FHL tendonitis guide.

Flexor digitorum longus (FDL): Flexes toes 2-5. Less commonly injured than FHL.

Achilles Tendon — The Strongest Tendon in the Body

Formation: The gastrocnemius and soleus muscles converge to form the Achilles tendon, which inserts on the posterior calcaneus.

Function: Primary plantarflexor of the foot. Generates the force for push-off, jumping, and sprinting. Bears 6-8x body weight during running.

Common pathologies: Insertional Achilles tendinopathy (where it joins the calcaneus), midportion tendinopathy (2-6cm above the insertion), retrocalcaneal bursitis, Haglund’s deformity (pump bump), Achilles rupture (sudden pop with weakness — surgical emergency). Read our back-of-heel pain guide.

When You Need a Podiatrist for Tendon Pain

Same-week appointment if: pain persists more than 4 weeks despite rest and shoe modification; visible swelling that doesn’t resolve; weakness or inability to perform single-leg toe rise; sudden pop with weakness (suspect rupture — emergent); recurrent ankle sprains (often signal peroneal tendon injury). At Balance Foot & Ankle we offer on-site ultrasound for real-time tendon evaluation, plus MRI orders for deeper investigation.

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.

★ DR. TOM’S COMPLETE 2026 ORTHOTIC RANKING

9 Best Prefab Orthotics by Use Case

PowerStep, Currex, Spenco, Vionic, and PowerStep Pinnacle — every orthotic I’ve fitted to thousands of patients across both Michigan offices. Each card includes pros, cons, and the specific patient I’d give it to. Real Amazon ratings, review counts, and prices below.

★ EDITOR’S CHOICE · BEST OVERALL

Best All-Purpose Orthotic for Most Patients

Affiliate Disclosure: This page contains affiliate links to products we recommend. If you purchase through these links, Balance Foot & Ankle may earn a small commission at no additional cost to you. We only recommend products we use with our 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
  • Lower price than PowerStep Pinnacle for equivalent function

✗ 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 PowerStep Pinnacle for 90% of patients, which is why I swapped it into our clinic kits three years ago. Sub-$50 typically.

BEST FOR FLAT FEET

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.

BEST SLIM FIT · DRESS SHOES

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.

BEST FOR FOREFOOT 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.

BEST DYNAMIC ARCH · CURREX

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.

BEST FOR RUNNERS · CURREX RUNPRO

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.

BEST FOR HIGH ARCHES

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.

BEST GEL CUSHION

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.

BEST LOW-VOLUME · PowerStep Pinnacle

Tight-Fitting Shoes · Cycling Shoes · Hockey Skates

PowerStep Pinnacle’s slim version of their famous Green insole. The trademark stabilizer cap is preserved but the overall thickness is reduced — works in cycling shoes, hockey skates, ski boots, and other tight-fitting footwear that the standard PowerStep Pinnacle can’t fit into.

✓ Pros

  • Stabilizer cap centers the heel (PowerStep Pinnacle’s signature feature)
  • 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 →

FSA/HSA eligible · Most insurance accepted · (810) 206-1402

Frequently Asked Questions About Foot Tendons

How many tendons are in the foot?

13 named tendons cross the ankle joint, plus several intrinsic tendons within the foot itself (toe flexors, lumbricals, etc.). The 13 main tendons are organized into 4 functional groups: anterior (4), lateral peroneal (2), deep posterior (3), and superficial posterior Achilles (forming from gastroc + soleus + plantaris).

What is the most commonly injured foot tendon?

The posterior tibial tendon (PTTD is leading cause of adult acquired flatfoot) and the Achilles tendon (Achilles tendinopathy and rupture). Peroneal tendinopathy is also common after ankle sprains.

What is the strongest tendon in the foot?

The Achilles tendon — the strongest and largest tendon in the entire body. Bears 6-8x body weight during running.

Which foot tendon supports the arch?

The posterior tibial tendon is the primary arch supporter. The peroneus longus contributes to the lateral arch.

How long do tendon injuries take to heal?

Mild tendinopathy: 4-8 weeks with appropriate care. Chronic tendinopathy: 3-6 months. Partial tear: 8-12 weeks. Complete rupture (Achilles): 6-12 months full recovery.

Can foot tendons heal without surgery?

Most tendon injuries heal with conservative care: rest, NSAIDs, immobilization (boot or brace), eccentric strengthening, custom orthotics. Surgery is reserved for complete ruptures, refractory tendinopathy after 6 months, or significant tear identified on MRI.

What is the difference between tendinitis and tendinopathy?

Tendinitis (acute inflammation) is rare. Tendinopathy (chronic degenerative changes) is the more accurate term for most tendon problems — the tendon shows microtears and disorganized collagen, not active inflammation. This is why eccentric strengthening (not just rest + NSAIDs) is the cornerstone of modern treatment.

Related Resources from Balance Foot & Ankle

Still Dealing With Foot Tendons?

Same-week appointments at Balance Foot & Ankle in Howell & Bloomfield Hills, MI.

Book Your Appointment

(810) 206-1402

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.

In-Office Treatment at Balance Foot & Ankle

If home treatment isn’t providing relief for your foot pain, our podiatry team at Balance Foot & Ankle can help with same-day evaluations and advanced in-office care.

Ready to Get Relief?

Same-day appointments available in Howell & Bloomfield Hills, MI

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Or call: (810) 206-1402

Recommended Products for Heel Pain
Products personally used and recommended by Dr. Tom Biernacki, DPM. All available on Amazon.
Medical-grade arch support that offloads the plantar fascia. Our #1 recommendation for heel pain.
Best for: Daily wear, work shoes, athletic shoes
Apply to the heel and arch morning and evening for natural anti-inflammatory relief.
Best for: Morning heel pain, post-activity soreness
Graduated compression supports plantar fascia recovery and reduces morning stiffness.
Best for: Overnight recovery, all-day wear
These products work best with professional treatment. Book an appointment with Dr. Tom for a personalized treatment plan.
Medical References
  1. Plantar Fasciitis: Diagnosis and Conservative Management (PubMed)
  2. Plantar Fasciitis (APMA)
  3. Diagnosis and Treatment of Plantar Fasciitis (PubMed / AAFP)
  4. Heel Pain (APMA)
This article has been reviewed for medical accuracy by Dr. Tom Biernacki, DPM. References are provided for informational purposes.

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