A 'quadriceps lag' is present when a patient cannot fully 'actively' extend the knee (straighten the leg using muscle contraction), but it can be fully 'passively' extended by the clinician.

Synonyms: 
Extension lag
-

Preventing arthrofibrosis

Part 11 of a course by Dr Frank Noyes on Arthrofibrosis

-

FORUM DISCUSSIONS

Extension Lag but not related to scar tissue??


CLINICAL PUBLICATIONS

Physiological quadriceps lag: its nature and clinical significance. Stillman BC. Aust J Physiother. 2004;50(4):237-41.


See also -