The Effect of Knee Flexion Angle on Contact Stress of Total Knee Arthroplasty N.M.A. Azam, Rosdi Daud, H. Mas Ayu, J. Ramli, M.F.B. Hassan, M.F.B. Hassan, A. Shah and M.A.H.M. Adib MATEC Web Conf., 225 (2018) 03009 Published online: 05 November 2018 DOI: 10.1051/matecconf/201822503009