How effective are added constraints in improving TKR kinematics? (Journal of Biomechanics (2007) 40, SUPPL. 1, (S31-S37) DOI: 10.1016/j.jbiomech.2007.02. 016) - Van Duren, B; Pandit, H; Beard, D; Zavatsky, A; Gallagher, J; Thomas, N; Shakespeare, D; Murray, D; Gill, H (2008)