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Orthopedic Trauma Glossary

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

Zone of polarizing activity ZPA

Advanced Technical IVT

Embryonic signaling center controlling digit pattern formation during limb development.

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load transfer

Advanced Technical IVT

The mechanism by which mechanical forces are transmitted from bone to implant or between bone segments.

Technical Term Full entry →

load-bearing axis

Advanced Technical IVT

The anatomical line through a bone along which mechanical forces are transmitted during weight-bearing activities.

Technical Term Full entry →

load-sharing device

Advanced Technical IVT

An implant that bears part of the mechanical load alongside the bone during healing.

Technical Term Full entry →

Locking compression plate

Professional Technical IVT

A fixation device that combines conventional compression plating with locked screw technology for enhanced stability.

Technical Term Full entry →

malunion

Intermediate Technical IVT

Fracture healing in an anatomically incorrect position resulting in deformity or functional impairment.

Technical Term Full entry →

Mechanical axis deviation

Professional Technical IVT

Abnormal alignment of the weight-bearing axis of the lower extremity from the normal hip-to-ankle line.

Technical Term Full entry →

Metaphyseal comminution

Professional Technical IVT

Fracture fragmentation occurring in the metaphyseal region of long bones, between the shaft and joint surface.

Technical Term Full entry →

Metaphyseal corner fracture

Advanced Technical IVT

Small avulsion fracture at the metaphyseal corner, often associated with non-accidental trauma in infants.

Technical Term Full entry →

metaphyseal spike

Intermediate Technical IVT

A sharp fragment of bone extending from the metaphyseal region, often seen in comminuted fractures.

Technical Term Full entry →

MIPO

Professional Technical IVT

Minimally Invasive Plate Osteosynthesis: surgical technique using small incisions to minimize soft tissue damage.

Abbreviation Full entry →

Morel-Lavallée lesion

Advanced Technical IVT

Closed degloving injury causing separation of subcutaneous tissue from underlying fascia with fluid collection.

Technical Term Full entry →

nonunion

Professional Technical IVT

Failure of bone fracture to heal within the expected timeframe despite adequate treatment.

Technical Term Full entry →

open reduction and internal fixation

Professional Technical IVT

Surgical procedure involving open exposure of a fracture site followed by placement of hardware to maintain bone alignme...

Technical Term Full entry →

ORIF

Intermediate Technical IVT

Open Reduction and Internal Fixation: surgical treatment involving exposure of the fracture and stabilization with impla...

Abbreviation Full entry →

osteosynthesis

Professional Technical IVT

Surgical fixation of bone fractures using internal devices to promote healing.

Technical Term Full entry →

OTA

Intermediate Technical IVT

Orthopaedic Trauma Association - the organization that developed the comprehensive alphanumeric fracture classification...

Abbreviation Full entry →

pathological fracture

Intermediate Technical IVT

Fracture occurring through abnormal or diseased bone with minimal or no trauma.

Technical Term Full entry →

Percutaneous pinning

Intermediate Technical IVT

A minimally invasive fixation technique using pins or wires inserted through the skin without open surgical exposure.

Technical Term Full entry →

periarticular fracture

Intermediate Technical IVT

Fracture occurring near but not necessarily involving a joint surface.

Technical Term Full entry →

periosteal stripping

Intermediate Technical IVT

Surgical removal or traumatic loss of the periosteum, the tissue layer that provides blood supply to underlying bone.

Technical Term Full entry →

Physiologic genu valgum

Intermediate Technical IVT

Normal developmental knee alignment variation in children, typically resolving by age 6-8 years.

Technical Term Full entry →

pilon fracture

Professional Technical IVT

A high-energy fracture of the distal tibia involving the weight-bearing articular surface of the ankle.

Technical Term Full entry →

plate contouring

Intermediate Technical IVT

The process of shaping an orthopedic plate to match the anatomical contours of the bone.

Technical Term Full entry →

Plate osteosynthesis

Professional Technical IVT

The surgical fixation of fractures using metal plates and screws to restore bone continuity and stability.

Technical Term Full entry →
Showing 49–72 of 100

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