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Orthotics Glossary

105 terms total — 24 showing — Last updated 15 Sep 2026

Static Orthosis

Basic Technical IVT

An orthotic device with no moving parts that immobilises a body segment in a fixed position to promote healing, prevent deformity, or maintain alignment.

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FES

Advanced Technical IVT

Abbreviation for Functional Electrical Stimulation; the use of controlled electrical pulses to activate paralysed or wea...

Abbreviation Full entry →

FO

Basic Technical IVT

Abbreviation for Foot Orthosis; an intra-shoe device used to support, align, or correct foot mechanics.

Abbreviation Full entry →

Foot Orthosis

Basic Technical IVT

A device worn inside the shoe that supports, aligns, or corrects the mechanical function of the foot.

Technical Term Full entry →

The application of electrical current to paralysed or weakened muscles to produce functional movement, often used in con...

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Functional Orthosis

Intermediate Technical IVT

An orthotic device designed to control abnormal foot motion and improve biomechanical function during dynamic activity,...

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Gait Analysis

Intermediate Technical IVT

The systematic study of human locomotion using observational or instrumented methods to quantify walking patterns and in...

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HCPCS Code

Advanced Formal IVT

A Healthcare Common Procedure Coding System alphanumeric code used in the United States to classify orthotic devices for...

Document Type Full entry →

Hemi-Walker

Intermediate Semi-formal IVT

A wide-based, single-sided assistive walking frame used by patients with unilateral weakness or hemiplegia, often prescr...

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A lower-limb orthosis extending from the pelvis to the foot, providing support and control at the hip, knee, ankle, and...

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HKAFO

Advanced Technical IVT

An orthosis that extends from the hip to the foot, controlling motion at the hip, knee, ankle, and foot joints.

Abbreviation Full entry →

Isokinetic Testing

Advanced Technical IVT

A standardised muscle-strength assessment method in which joint movement occurs at a constant angular velocity, used to...

Technical Term Full entry →

Jobst Garment

Intermediate Semi-formal IVT

A brand-name compression garment widely used as a generic reference to custom or prefabricated graduated compression ort...

Style Convention Full entry →

KAFO

Intermediate Technical IVT

Acronym for Knee–Ankle–Foot Orthosis; an orthotic device extending from the thigh to the foot, used to control the knee,...

Abbreviation Full entry →

Knee Orthosis

Intermediate Technical IVT

An external device applied to the knee joint to provide support, correct alignment, or restrict motion.

Technical Term Full entry →

Letter of Medical Necessity

Professional Formal IVT

A formal clinical document authored by a prescribing physician or orthotist that justifies the medical need for an ortho...

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Limb-Length Discrepancy

Intermediate Technical IVT

A measurable difference in the length of paired limbs, most commonly the lower extremities, which may be addressed throu...

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LLD

Basic Technical IVT

Abbreviation for Limb-Length Discrepancy; a measurable inequality between paired limbs requiring orthotic or surgical co...

Abbreviation Full entry →

LSO

Intermediate Technical IVT

Lumbosacral Orthosis; a device that encompasses the lumbar spine and sacral region to restrict motion or provide support...

Abbreviation Full entry →

Medial Longitudinal Arch

Intermediate Technical IVT

The primary arch of the foot, running along its inner border from the heel to the first metatarsal head, critical to sho...

Technical Term Full entry →

Medial Wedge

Intermediate Technical IVT

An orthotic insert or outsole modification that is thicker on the medial (inner) side, applying a varus force to the foo...

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Metatarsal Bar

Intermediate Technical IVT

A transverse ridge or pad incorporated into a shoe sole or insole, positioned proximal to the metatarsal heads to redist...

Technical Term Full entry →

Metatarsalgia

Intermediate Technical IVT

Pain and inflammation in the ball of the foot, centred around the metatarsal heads, often addressed orthotic interventio...

Technical Term Full entry →

Milwaukee Brace

Intermediate Technical IVT

A cervico-thoraco-lumbo-sacral orthosis (CTLSO) designed to treat scoliosis in skeletally immature patients, distinguish...

Technical Term Full entry →

Molded Shoe Insert

Basic Semi-formal IVT

A custom-fabricated insole shaped to an individual's foot contour, used to provide support, correct alignment, or redist...

Technical Term Full entry →
Showing 25–48 of 105

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