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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.

Showing 73–96 of 100

polytrauma

Intermediate Technical IVT

Multiple traumatic injuries affecting several body systems or anatomical regions simultaneously.

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Primary bone healing

Professional Technical IVT

Direct bone healing that occurs when fracture fragments are in close contact with rigid fixation and minimal gap.

Technical Term Full entry →

provisional fixation

Intermediate Technical IVT

Temporary stabilization of fracture fragments during surgery to maintain reduction while applying definitive fixation.

Technical Term Full entry →

provisional K-wire

Intermediate Technical IVT

Temporary Kirschner wire placed to maintain fracture reduction during definitive fixation procedures.

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Provisional reduction

Intermediate Technical IVT

Temporary fracture alignment achieved before definitive fixation, often maintained with clamps or temporary pins.

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pseudarthrosis

Professional Technical IVT

Formation of a false joint at the site of an ununited fracture.

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reduction loss

Intermediate Technical IVT

Secondary displacement of a fracture after initial successful reduction and fixation.

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Reduction maneuver

Intermediate Technical IVT

A specific technique or series of movements used to realign displaced bone fragments or dislocated joints.

Technical Term Full entry →

Retrograde nailing

Professional Technical IVT

An intramedullary fixation technique where the nail is inserted from the distal end of the bone.

Technical Term Full entry →

revision ORIF

Advanced Technical IVT

A secondary surgical procedure to revise or replace previous internal fixation hardware.

Technical Term Full entry →

Rotational malalignment

Professional Technical IVT

Improper rotational positioning of bone fragments following fracture, leading to functional impairment.

Technical Term Full entry →

Salter-Harris classification

Professional Technical IVT

System for categorizing pediatric physeal (growth plate) injuries based on fracture pattern.

Technical Term Full entry →

screw angulation

Intermediate Technical IVT

The angle at which a screw is inserted relative to the bone surface or fracture plane.

Technical Term Full entry →

Screw backout

Intermediate Technical IVT

Progressive loosening and migration of orthopedic screws from their original position in bone.

Technical Term Full entry →

Screw pullout

Professional Technical IVT

Mechanical failure where a screw loses its hold in bone, often due to poor bone quality or excessive loading.

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screw toggle

Advanced Technical IVT

Loosening of a screw within bone, indicating loss of fixation integrity.

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stress riser

Advanced Technical IVT

A point of stress concentration in bone or implant that increases the risk of failure at that location.

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Subtrochanteric fracture

Intermediate Technical IVT

A femoral fracture occurring in the region below the lesser trochanter, typically within 5cm of this landmark.

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Syndesmosis screw

Professional Technical IVT

A large-diameter screw used to temporarily stabilize the tibiofibular syndesmosis after ankle injury.

Technical Term Full entry →

syndesmotic injury

Advanced Technical IVT

Injury to the fibrous ligaments connecting the tibia and fibula, affecting ankle stability.

Technical Term Full entry →

Tension band wiring

Professional Technical IVT

A fixation technique that converts tensile forces into compressive forces across a fracture site.

Technical Term Full entry →

Traction apophysitis

Intermediate Technical IVT

Inflammation of bone growth centers due to repetitive pulling forces from attached tendons or muscles.

Technical Term Full entry →

unicortical screw

Intermediate Technical IVT

A screw that engages only one cortex of bone, typically used when bicortical purchase is not feasible or necessary.

Technical Term Full entry →

valgus angulation

Intermediate Technical IVT

Deformity where the distal portion of a limb is angled away from the midline of the body.

Technical Term Full entry →
Showing 73–96 of 100

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