Robotic-assisted total knee arthroplasty may lead to improvement in quality-of-life measures: a 2-year follow-up of a prospective randomized trial - Liow, M HL; Goh, G SH; Wong, M K; Chin, P L; Tay, D KJ; Yeo, S J (Knee Surg Sports Traumatol Arthrosc, 2017)