Unicompartmental knee arthroplasty achieves greater flexion with no difference in functional outcome, quality of life, and satisfaction vs total knee arthroplasty in patients younger than 55 years. A propensity score–matched cohort analysis - Goh, G S; Bin Abd Razak, H R; Tay, D K; Chia, S L; Lo, N N; Yeo, S J (J Arthroplasty, 2018)