Function in the single-leg-hop test , patient-reported outcomes ( Knee injury and Osteoarthritis Outcome Score [ KOOS ] , International Knee Documentation Committee subjective questionnaire [ IKDC ] ) , and neuromuscular outcomes of peak force ( PF ) , rate of force development ( RFD ) , electromechanical delay ( EMD ) , and sensorimotor performance ( force error [ FE ] ) of the knee extensors and flexors of the injured and noninjured legs , measured presurgery and at 6 , 12 , 24 , and 48 wk postsurgery .