A recent study from the Oxford group (Dr. Kennedy) showed that osteoarthritis patients in all age groups benefit from unilateral knee replacement. The best indication is end-stage osteoarthritis (bone on bone in the affected knee compartiment). A significant better functional outcome was found in uni knee patients compared to total knee replacement. Want to know more? Follow this link to the original article:
https://www.thekneejournal.com/article/S0968-0160(20)30157-5/fulltext
J A Kennedy, H R Mohammad, S J Mellon, C A F Dodd , D W Murray