Rectus femoris to gracilis muscle transfer with fractional lengthening of the vastus muscles: a treatment for adults with stiff knee gait.
Namdari S, Pill SG, Makani A, Keenan MA. Rectus femoris to gracilis muscle transfer with fractional lengthening of the vastus muscles: a treatment for adults with stiff knee gait. Phys Ther. 2010 Feb; 90(2):261-8.