Assisted flexion is a knee rehabilitation exercise where the good leg acts as a helper to increase the flexion.
How often is functional range of motion obtained by manipulation for stiff total knee arthroplasty? Choi HR, Siliski J, Malchau H, Freiberg A, Rubash H and Kwon YM. Int Orthop. 2014 Aug;38(8):1641-5. doi: 10.1007/s00264-014-2421-z. Epub 2014 Jul 4.