Orthopedic Trauma Glossary
100 terms total — 4 showing — Last updated 15 Sep 2026
Zone of polarizing activity ZPA
Embryonic signaling center controlling digit pattern formation during limb development.
varus angulation
Abnormal inward angulation of a bone or joint, creating a bow-legged appearance.
Weber classification
Ankle fracture classification system based on the level of fibular fracture relative to the syndesmosis.
working length
The distance between screws in plate fixation that determines construct flexibility and stress distribution.
Zone of polarizing activity
Embryonic signaling center controlling digit pattern formation during limb development.