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Pre- and postoperative patellar kinematics (mediolateral shift: medial, +; lateral, −; axial tilt: medial, −; lateral, +; coronal rotation: external, −; internal, +; epicondylar distance (mm) during range of motion: open triangle (preoperatively) and closed circle (postoperatively)). Mean values with standard errors. Asterisks above the x-axis indicate significant differences during range of motion.
