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the act of twisting; the state of being twisted. adj., adj tor´sive.
tibial torsion inward twisting of the tibia so that the foot turns inward.
Etymology: L, tibia + torquere, to twist
a lateral or a medial twisting rotation of the tibia on its longitudinal axis. It is similar to pronation of the hand, caused by the contraction of the pronator teres and the pronator quadratus, or supination of the hand caused by the contraction of the supinator muscle. Compare femoral torsion.
tib·i·al tor·sion(tib'ē-ăl tōr'shŭn)
A congenital twisting of the tibia.