Root P7 orthotic Root P7 orthotic — labeled construction Root P7 orthotic Root P7 orthotic Root P7 orthotic Root P7 orthotic Root P7 orthotic

Intoeing Gait

Root Model: P7

Guides external leg rotation toward neutral gait and corrects adduction — custom congruent to every patient's foot model.

Frame
Performance
Athletic / Casual shoes
Dress
Performance
Control
UCBL
Moderate control
Standard width frame
Configure Root on FootID Pro
Enlarged view
Intoeing gait — adducted foot progression angle during walking
Understanding the condition

Intoeing starts at the skeleton, not the shoe.

Every step taken with an adducted gait pattern places abnormal rotational stress on the hip, knee, and foot. When the feet consistently turn inward, the kinetic chain above compensates — and that compensation compounds over time.

The root cause is rotational — a skeletal misalignment that cannot be stretched away. Without redirecting the mechanics from the ground up, the pattern persists.

01

Adducted foot progression

Intoeing reduces propulsive efficiency, increases medial joint loading, and alters the entire lower limb rotation with every step.

02

Rotational chain reaction

Internal tibial or hip rotation forces compensatory changes at the knee and hip — increasing the risk of patellofemoral pain and hip stress over time.

03

Window of correction

Skeletal flexibility is greatest in pediatric patients — early orthotic intervention produces the most significant and lasting gait correction.

FootID Pro scanning platform

The P7 redirects the gait, not just the foot.

Custom-fabricated to your patient's exact foot shape with a unique distal edge that triggers external leg rotation.

Root P7 orthotic — distal shell edge detail
The P7 protocol

Three interventions.
One precise solution.

The P7 doesn't force correction — it works with the body's own compensatory reflexes to guide rotation toward neutral.

01

Distal shell edge

The unique termination point of the rigid shell creates controlled forefoot instability at toe-off — triggering a compensatory external leg rotation that progressively guides the foot toward a neutral gait pattern.

02

Rearfoot control

An extrinsic EVA rearfoot post balanced forefoot to rearfoot reduces subtalar inversion and eversion — reinforcing neutral alignment and preventing compensatory pronation throughout the gait cycle.

03

Congruent shape

The custom-fabricated shell matches the patient's plantar surface precisely — providing continuous proprioceptive input that reinforces the corrective rotation pattern with every step.

Root P7 orthotic — biomechanical science
Neurological & biomechanical science

It's not just alignment. It's how the body responds.

The shape of what's under the foot determines how the entire kinetic chain sequences during gait. The P7 exploits the body's own compensatory reflexes — creating a precise mechanical stimulus that triggers external rotation without forcing it.

  • Forefoot instability trigger — the distal shell edge creates a controlled tipping point at toe-off. The leg responds by rotating externally to stabilise — exactly the correction needed.
  • Neurological feedback — congruent shape provides continuous proprioceptive input, reinforcing the corrective rotation pattern with every step throughout the gait cycle.
  • Muscle sequence in gait — hundreds of muscles fire differently based on what's under the foot. The P7's shape modifies this sequence, progressively normalising the gait pattern over weeks and months.
  • Rearfoot stabilisation — the extrinsic post prevents compensatory pronation as the leg externally rotates, ensuring the correction is structurally supported throughout the gait cycle.
Generic support vs Root P7 congruent shape comparison
The Root difference

Shape is everything.

What separates Root from generic supports is the precise morphological shape captured from the patient's foot — held in the exact clinical position the clinician chose.

The Root orthotic matches the precise alignment the clinician held the foot in during scanning. This congruency ensures the distal shell edge and rearfoot post work from the correct anatomical foundation — patient-specific, not templated.

Digital shape
Default ✓

Modern Root

Width adjusted considering both borders. Default for all Root models.

Cast in plaster

Traditional Root

Justified to the lateral border. Medial width reduced. Used for specific clinical indications.

Modern Root shape process

  • Forefoot balanced to rearfoot — the forefoot-to-rearfoot relationship is optimised as the first step in shape modification.
  • Fat pad expanded ~3mm — expanding the fat pad in the heel ensures the device fills the calcaneal contour precisely for consistent rearfoot positioning.
  • Arch lowered ~3mm — creates optimal heel-to-arch-to-met-head geometry. Not applied to foam impressions.
  • Width tuned to both borders — medial and lateral widths are both considered, giving a foundation that matches the patient's actual foot width.
Subtalar Joint Positions — neutral, pronated, and supinated

*Subtalar joint neutral is found by palpating the talus head against the navicular. The neutral position can present many joint-on-joint and bone-on-bone relationships and varies from person to person. An everted or inverted calcaneus may be a neutral position for an individual person. Biomechanical evaluation required.

FootID Pro — Clinical alignment scanning

How you hold the foot is what we build.

Root is not just the orthotic — it's the clinician's positioning, captured and preserved in the device. After scanning, FootID Pro asks the questions no other lab asks.

After every scan, we need to know:

  • Was the subtalar joint held in neutral?
  • Was the midtarsal joint maximally pronated — loading the 5th metatarsal head?
  • Was the midtarsal joint maximally supinated — loading the 1st metatarsal head?
  • Was the forefoot brought perpendicular to the rearfoot?
  • Was a forefoot-to-rearfoot balance bisection achieved at 90° relative to the Achilles tendon vector?

The positioning of those 19 joints in the foot is what gives us the shape.

CAD/CAM fabrication

  • Scan or cast captured — clinician captures foot morphology via FootID Pro, holding the subtalar joint in the chosen clinical position.
  • Shape modification applied — forefoot balanced to rearfoot, fat pad expanded, arch adjusted using Root's design.
  • Technical staff review — every device reviewed against Traditional Root, Modern Root, Blake Inverted, or Accommodative principles.
  • Fabricated to the shape — the polypropylene frame is vacuum formed to match the submitted shape precisely, with the distal shell edge terminating at the metatarsal heads as prescribed.
FootID Pro tutorial

See how the scan becomes an order.

Watch Kevin capture a foot, confirm the clinical position, and send a Root order — start to finish.

0:00 / 0:00
Foot Impression
Step 01
Foot Impression
Scan · Cast · Foam · STS Sock · Pedobaro
Positive Model
Step 02
Positive Model
Plaster · CAD/CAM · 3D Print · Redimold
Frame Built
Step 03
Frame Built
Vacuum Formed · 3D Printed · Milled
Congruent Accuracy
Variation converted to anatomy-match accuracy by impression & fabrication method

How closely each method preserves the patient’s intended foot shape. Scale: 0–100%, where 100% = optimal congruence.

Impression Method (Clinician)

Plaster bandage is wrapped around the foot in the clinician’s prescribed corrected position, setting into a precise negative of the foot’s contour.

AdvantageYields an accurate, precise impression with easy foot alignment.
LimitationTime-consuming and messy to take.
Foot model dataModel stored 3 months; positive model can be returned on request.
Read full guide →

The foot is pressed into a crushable foam box, leaving a negative impression of the plantar surface.

AdvantageFast and accurate; captures the foot’s natural fat-pad expansion.
LimitationCasting technique is difficult to master.
Foot model dataModel stored 3 months; positive model can be returned on request.
Read full guide →

An existing positive model from the patient’s previous orthotics is reused — KevinRoot accepts models from any lab, with frame-contour variance as low as 1%.

AdvantageAccurate, reusable model; helps patients understand the process.
LimitationPatient is responsible for storing the model.
Foot model dataPositive model returned to the clinic.
Read full guide →

A digital scanner such as FootID Pro captures the foot surface as a 3D model.

AdvantageFast, clean and non-contact; instantly stored and recallable.
LimitationCapture quality depends on scan technique and foot positioning.
Foot model dataDigital model stored indefinitely.
Read full guide →

A fiberglass casting sock is applied over the foot and cures to capture its contour.

AdvantageQuick capture; clean.
LimitationLarge congruency variation from gaps between the impression sock and skin.
Foot model dataStored indefinitely.
Read full guide →

Pedobarography captures the patient’s plantar pressure distribution (static or dynamic) at 1:1 scale — used with arch height and shoe size to select a redimold positive model, not to capture true 3D contour.

AdvantageIncorporates gait analysis, quick capture, and digital transfer (no shipping).
LimitationDoes not yield an accurate foot model; orthotic has high congruency variation.
Foot model dataStored indefinitely.
Read full guide →

A direct-molding system using prefabricated, size- and arch-based positive models (33 in total) rather than an individual foot impression.

AdvantageQuick and easy — fastest data acquisition and turnaround.
LimitationDevice will not have a custom-contoured frame shape.
Foot model dataRedimold positive model; stored indefinitely.
Read full guide →
Fabrication Method (Lab)

Heated material is vacuum-pressed over a plaster positive model, drawing it intimately into every contour.

AdvantageAccurate foot model; supports the full range of frame materials.
LimitationPhysical storage, can break, and is irreplaceable without a new positive model.
Foot model dataStored 3 months, or returned to the clinic for repeat orders.
Read full guide →

The frame is 3D printed by selective laser sintering (SLS) directly from the CAD-designed digital frame.

AdvantageMicron-level resolution, highly accurate to the digital design, with no material waste.
LimitationNylon only; CAD design-time limits can increase contour variation.
Foot model dataDigital frame specifications stored indefinitely.
Read full guide →

A positive model is CNC-milled (CAD/CAM) from an STS, 3D scan, plaster, or foam impression, then the frame is vacuum formed over it.

AdvantageDigital 3D model stored indefinitely; supports the full range of frame materials.
LimitationSome foot contour is lost with the routed positive model.
Foot model dataDigital 3D model stored indefinitely.
Read full guide →

A CNC machine subtractively mills the frame from a block of polypropylene or EVA per the digital design.

AdvantageConsistent and reproducible; multiple pairs can be milled simultaneously.
LimitationLimited to polypropylene or EVA; some contour loss from CAD design-time limits.
Foot model dataDigital frame specifications stored indefinitely.
Read full guide →
High accuracy (≥95%)
Moderate accuracy (86–94%)
Lower accuracy (≤85%)

*Redimold has no physical or digital foot impression — patient-foot-to-cast congruent accuracy is unavailable. Variation from positive model to frame is low.

From scan to finished orthotic

How your foot shape becomes a precision frame.

The journey from clinical capture to finished orthotic frame is where Root's expertise lives. Every step preserves the shape and position the clinician chose — ensuring the P7's distal edge and rearfoot post function precisely as prescribed.

  • Foot impression captured — the clinician captures the foot using their preferred method. The fashion in which the foot is held directly affects the outcome of the Root Shape congruency against the foot.
  • Positive model created — the impression becomes a physical plaster model or a digital CAD/CAM model via FitFoot360. Digital models are stored indefinitely.
  • Root technicians modify the shape — using FitFoot360, technicians apply the Modern Root shape process. The distal edge termination is confirmed against the clinical prescription.
  • Orthotic frame fabricated — the frame is vacuum formed over the positive model or 3D printed, pressing the material precisely to the shape. The distal edge and extrinsic post are then finished to specification.

FitFoot360 Foot Model

  • Root digital model stored indefinitely → recalled for future pairs
  • Root technicians modify the digital shape in real-time: arch, heel, width, postings
  • Vacuum formed over CAD/CAM positive model, direct milled or 3D printed Root Frame — replicable, consistent, precise
FitFoot360 CAD/CAM interface — orthotic surface modification FitFoot360 CAD/CAM interface — digital positive model
FitFoot360 — CAD/CAM design software

Real-time control over shape, function, and fit.

FitFoot360 gives Root's technicians complete digital control over every dimension of the orthotic frame — in real time. What once required physical carving and guesswork is now precise, repeatable, and stored permanently for every patient.

Digital positive model

Stored indefinitely. Future pairs, replacements, or modifications can be fabricated from the exact same shape without a new impression.

Real-time shape modification

Root technicians control arch, heel, width, and postings directly in the software.

Every parameter visible

Heel cup depth, frame reinforcement, ray cut-outs, flanges, and distal edge termination are all set per patient, not per template.

Plaster and foam digitisation

Physical models can be digitised for permanent storage. Note: digitising may not perfectly replicate the intimate contours achieved when vacuum forming directly over plaster.

Root P7 orthotic
Construction

Built to their spec. Built for their foot.

Every parameter of the P7 is set to the individual patient — rigidity, posting, heel-cup depth, and cover are all chosen for their anatomy and gait pattern, never an average.

FRAME MATERIALPolypropylene

Rigidity is selected per patient weight — the shell must be firm enough to create the forefoot instability that triggers external leg rotation in that specific patient.

REARFOOT POST55–65 Shore A EVA

Extrinsic post balanced forefoot to rearfoot — built into the positive model of the patient's foot. Reduces subtalar inversion and eversion to support neutral alignment throughout gait.

HEEL CUP DEPTH12mm

Captures the patient's calcaneus precisely as cast — providing rearfoot stability while the distal shell edge manages forefoot correction above.

TOP COVER.75mm Protex

Trimmed to the patient's metatarsal line, so contact and pressure distribution match their exact foot geometry.

BOTTOM COVERNone (default)

The custom shell eliminates the need for additional material. Added only when the patient's shoe environment or activity demands it.

EXTENSIONNone (default)

The P7 shell terminates at the metatarsal heads — the distal edge is the functional element. Extension is not applied unless clinically indicated.

Clinical Outcome Indicators Gait quality Rotation Stability Comfort Activity Alignment Before P7 With P7
Clinical outcomes

What changes when the gait is redirected from the ground.

Correcting intoeing biomechanically — rather than through bracing or surgery — creates progressive improvements across gait quality, joint load, and patient confidence.

  • Progressive gait correction — the distal edge stimulus triggers external rotation with every step, progressively improving foot progression angle over weeks and months.
  • Reduced joint stress — corrected leg rotation reduces the abnormal medial loading at the knee and hip that adducted gait produces over time.
  • Improved gait efficiency — neutral foot progression restores propulsive mechanics, reducing the energy cost of intoeing gait in both pediatric and adult patients.
  • No bracing or surgery — the P7 achieves correction through the body's own reflex mechanisms, avoiding the restrictions of rigid bracing or the risks of surgical intervention.
Biomechanics

Designed to redirect the gait. From the ground up.

The unique distal edge of the rigid shell creates controlled instability under the forefoot during toe-off — triggering a compensatory external leg rotation that guides the foot toward a more neutral gait. An extrinsic rearfoot post reduces subtalar inversion and eversion, reinforcing alignment throughout the gait cycle. Fabricated from a positive model of the patient's foot, the P7 works with the body's own compensatory mechanics to correct adducted gait without bracing or surgery.

Root P7 orthotic with distal edge detail
Product details

The full picture.

Everything you need to prescribe.

Purpose Clinical Indications
  • Hip adduction
  • Intoeing gait
  • Internal tibial torsion
  • Metatarsus adductus

Recommended for

  • Pediatric and adult patients with adducted gait pattern
  • Internal torsion
  • Flexible shoe gear
Design Device Overview

Designed for patients presenting intoeing gait with significant adduction — this device externally rotates the leg and guides patients toward a more neutral gait pattern.

The unique distal edge of the rigid shell creates forefoot instability at toe-off, triggering compensatory external rotation. An extrinsic rearfoot post reduces subtalar inversion and eversion throughout gait. Fabricated from a positive model of the patient's foot, fully modifiable at the practitioner's discretion.

Details Suggested L-codes
  • L3000 (UCB)

Final coding and billing are the provider's responsibility

Delivery Time

  • Standard: 2 weeks
  • Expedited: Available upon request
Intoeing gait — rotational profile of hip, tibia, and foot
Medical condition

Intoeing Gait

Intoeing — commonly called “pigeon-toed” gait — occurs when the feet turn inward during walking rather than pointing forward. It is most commonly caused by skeletal rotational abnormalities at the hip, tibia, or foot, and presents across both pediatric and adult populations. While often dismissed as a developmental variation, significant adduction alters load distribution, gait efficiency, and long-term joint mechanics.

A Mechanical Problem With a Mechanical Solution

Intoeing gait caused by skeletal abnormalities responds well to orthotic realignment — particularly when the adduction originates at the forefoot or tibial level. The P7 uses the body's own compensatory reflexes to guide rotation, rather than forcing correction through rigid bracing.

Hip Adduction — Internal rotation originating at the hip joint, causing the entire lower limb to rotate inward during gait. Presents as a classic intoeing pattern with the patella facing inward. Most common in children aged 3–8 but can persist into adulthood.

Internal Tibial Torsion — Inward rotation of the tibia relative to the femur. The most common cause of intoeing in children under 3. The foot points inward while the knee faces forward. Often resolves spontaneously — orthotics indicated when the pattern persists or is functionally significant.

Metatarsus Adductus — Adduction originating at the forefoot, with the front of the foot curving inward relative to the heel. Ranges from flexible to rigid. The P7 is most effective for flexible presentations where the forefoot can be guided toward neutral.

Diagnosis

Clinical assessment includes rotational profile examination — hip internal and external rotation, thigh-foot angle, and forefoot adductus angle. Gait observation confirms the level of intoeing and degree of adduction. X-ray is used when structural deformity or metatarsus adductus severity requires imaging to guide treatment planning.

Treatment Pathway

First-line treatment includes orthotic intervention, stretching, and gait retraining. Custom orthotics are most effective when introduced during periods of skeletal flexibility — early intervention produces the most significant correction in pediatric patients. If little progress is seen at 3–6 months, specialist referral for further assessment is indicated. Surgical derotation osteotomy becomes a consideration in severe, persistent cases that have failed conservative management.

The P7 is designed to be part of the first-line response — guiding the leg toward neutral rotation from the first step, working with the body's own mechanics to correct adducted gait.

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