Dorsiflexion
Pronunciation: dor-sih-FLEK-shun
Movement at the ankle joint in which the dorsum of the foot is drawn toward the anterior aspect of the lower leg, decreasing the angle between foot and leg.
Full Definition
Dorsiflexion describes the motion at the talocrural (ankle) joint that moves the top of the foot toward the shin, increasing the toe-to-shin angle. It is the functional opposite of plantarflexion. In orthotic documentation, adequate dorsiflexion range is a key assessment parameter because its limitation — from spasticity, contracture, or structural pathology — is one of the primary indications for ankle-foot orthosis prescription. Editors should ensure consistent hyphenation policy: the term is never hyphenated as a single noun or adjective (e.g., 'dorsiflexion assist'). The noun 'dorsiflexion' should be distinguished from the verb phrase 'to dorsiflex'.
Usage
Usage note: Never hyphenate. Distinguish clearly from plantarflexion. In compound adjectives, use unhyphenated closed forms: 'dorsiflexion assist', not 'dorsiflexion-assist'.
In Context
- "Limited dorsiflexion of less than five degrees was documented at the initial gait assessment." — Gait assessment report
- "The orthosis incorporated a dorsiflexion assist spring to aid toe clearance during the swing phase." — Orthotic device specification