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Area under the curve analysis was used to analyze the differences between the pre- and post-surgery kinematics mean values across the entire range of motion of the two groups. The knees in the hanging leg group showed much smaller differences compared to those in the supine leg group for both varus-valgus and rotational kinematics, as seen by the height of the bar on the y-axis. IR-ER, internal-external rotation; Var-Val, varus-valgus.
