External Tibial Torsion with Proximal Tibia Vara in Total Knee Arthroplasty of Advanced Osteoarthritis with Severe Varus Deformed Knees - Sun, Doo-Hoon; Song, In-Soo; Kim, Jun-Beom; Kim, Cheol-U; Jung, Deukhee; Jeong, Uitak (The journal of the Korean Orthopaedic Association, 2020)