Medically reviewed by Dr. Tom Biernacki, DPM
Board-certified podiatric surgeon | Balance Foot & Ankle
Last reviewed: April 2026
The most important clinical decision with Posterior Shin Splints: Causes & Fix 2026 | DPM isn’t which treatment to choose — it’s identifying which subtype you have first. Our podiatrists see patients treated for the wrong subtype for months before the correct diagnosis leads to full resolution. Call (810) 206-1402 — expert podiatric care across Michigan.
Not all shin pain is the same. If your shin pain is along the inner back edge of your shinbone — and it aches deep rather than right on the bone surface — you may have posterior shin splints, the most common subtype of medial tibial stress syndrome seen in distance runners.
Here’s how to identify posterior shin splints, differentiate them from other leg pain, and treat them correctly.
What Are Posterior Shin Splints?
Posterior medial tibial stress syndrome (MTSS) — commonly called posterior shin splints — is periosteal irritation along the posteromedial tibial border caused by repetitive muscle traction from the tibialis posterior, flexor digitorum longus, and soleus muscles. These muscles originate on the back-inner surface of the tibia, and with repetitive loading, their fascia and periosteal attachments become inflamed.
This is the most common form of shin splints in distance runners and accounts for up to 35% of all running injuries. The condition exists on a continuum: at one end is mild periosteal irritation (reversible with rest), at the other end is tibial stress fracture (requires medical management).
Posterior vs. Anterior Shin Splints: Key Differences
The inner-back vs. front distinction is important because the causes, risk factors, and treatments differ:
- Posterior shin splints: Pain along the posterior-medial tibial border (inner back edge of shin), deep aching character, strongly associated with overpronation and tibialis posterior muscle overload
- Anterior shin splints: Pain along the anterior tibia (front of shin), often a surface-level tenderness, associated with increased dorsiflexion demand (running uphill, sprinting, speed work)
- Compartment syndrome: Cramping tightness during runs that resolves quickly after stopping — bilateral more often, requires compartment pressure testing
What Causes Posterior Shin Splints?
- Overpronation: Excessive inward rolling of the foot dramatically increases tibialis posterior load — the muscle works overtime to control the arch collapse with every step
- Training volume spikes: Weekly mileage increases >10%, adding hills, switching surfaces
- Worn footwear: Midsole breakdown allows excessive pronation
- Weak tibialis posterior: Often overlooked — direct strengthening is key to resolution and prevention
- Tight calf complex: Limited ankle dorsiflexion redirects ground reaction forces to increase tibial bone stress
- Female sex: Women are 2–3× more likely to develop MTSS, partly due to hip mechanics and partly due to energy deficiency risk
Recognizing Posterior Shin Splints: The Clinical Picture
- Diffuse aching pain along the posterior-medial tibial border — not the front of the shin
- Tenderness when pressing along the inner-back edge of the tibia (the specific landmark: 2–6cm above the medial malleolus on the posterior tibial border)
- Pain at the START of runs, may ‘warm up,’ then returns or worsens
- Morning stiffness and achiness in the shins
- Pain with resisted plantarflexion and inversion (the tibialis posterior action)
⚠️ Get evaluated urgently if:
- Pain is pinpoint — one small spot vs. a broad band (stress fracture warning)
- Pain at rest, at night, or with normal walking (not just running)
- Positive hop test: hopping on one leg reproduces tibial pain
- Visible swelling or bruising over the shin
- Progressive worsening despite 2 weeks of rest
Treatment Protocol
Immediate Phase (Week 1–2)
Reduce running by 50–75%. No speed work or hills. Cross-train with swimming or stationary cycling. Ice for 15 minutes after any activity. NSAIDs for acute pain management.
Correction Phase (Week 2–6)
- Tibialis posterior strengthening: Seated resisted inversion (theraband around forefoot, invert against resistance) — 3 sets × 20 reps daily. Single-leg heel raises with slight inversion. This is the most underperformed exercise in shin splint rehab.
- Soleus strengthening: Bent-knee heel raises (seated calf raises) target the soleus specifically — more relevant to posterior shin splints than gastrocnemius work
- Orthotics for pronation control: Custom or over-the-counter medial arch support dramatically reduces tibialis posterior load
- Footwear upgrade: Stability or motion-control running shoes if overpronation confirmed
- Calf stretching: Gastrocnemius and soleus stretches 3× daily
Return to Running (Week 4–10)
Structured walk-run progression, starting with run/walk ratios (1 min run: 2 min walk), increasing running proportion each week. Maximum 10% weekly mileage increase. Monitor pain: if pain exceeds 3/10 during or after running, don’t progress that week.
Key takeaway: Controlling overpronation — with orthotics and tibialis posterior strengthening — is the single most effective intervention for preventing posterior shin splint recurrence.
Frequently Asked Questions
How do I know if my posterior shin pain is a stress fracture?
Stress fracture pain is pinpoint (one finger can identify the exact spot), worsens progressively throughout a run, doesn’t warm up, and may hurt at rest or at night. MTSS pain is diffuse along a broad tibial region, often warms up mid-run, and is typically only symptomatic with running. When in doubt, see a podiatrist — imaging can confirm.
Does posterior shin splints affect one leg or both?
Both, usually — though one side is often more symptomatic. Bilateral presentation is more consistent with MTSS; a unilateral acute onset with pinpoint tenderness should raise concern for stress fracture.
Can I run with posterior shin splints?
With mild symptoms (pain ≤3/10, no worsening during run), reduced mileage is often possible. If pain worsens during the run, persists after, or requires gait modification, stop running until evaluated.
Are posterior shin splints the same as a posterior tibial tendon problem?
Not exactly — posterior shin splints involve the tibial periosteum and muscle fascia attachments, while posterior tibial tendon dysfunction (PTTD) affects the tendon further down toward the ankle. Both are driven by tibialis posterior overload from overpronation.
The Bottom Line
Posterior shin splints are a warning sign that the tibialis posterior and tibial bone are under excessive load. Rest alone without addressing the root causes — overpronation, muscle weakness, training errors — leads to repeated cycles of injury.
At Balance Foot & Ankle, we provide biomechanical gait analysis, custom orthotics, and sport-specific rehabilitation protocols to get runners back on the road with a durable fix.
Ready to Get Relief?
Same-day appointments available in Howell & Bloomfield Hills, MI
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Or call: (810) 206-1402
Sources
1. Moen MH, et al. Medial tibial stress syndrome. Sports Med. 2009;39(7):523-546.
2. Newman P, et al. Risk factors for medial tibial stress syndrome. Br J Sports Med. 2013;47(4):239-244.
3. Reinking MF, et al. Medial tibial stress syndrome. JOSPT. 2017;47(9):656-664.
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 Tread Labs — 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.
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 →FSA/HSA eligible · Most insurance accepted · (810) 206-1402
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.