[Effectiveness and safety analysis of simultaneous bilateral total knee arthroplasty in treatment of patients aged 65 years and younger with bilateral knee osteoarthritis]. - Zhao J; Wang Q; He W; He H; Lu X; Wang F (Zhongguo xiu fu chong jian wai ke za zhi = Zhongguo xiufu chongjian waike zazhi = Chinese journal of reparative and reconstructive surgery, 2025)