The New England Journal of Medicine has concluded that the surgical outcome for mild meniscal tears and moderate knee arthritis was not superior to the outcome that physiotherapy treatment alone provided. No need for the knife you say?
https://www.moveforwardpt.com/DidYouKnow/Detail.aspx?cid=687aa921-ed48-46dd-9b2f-17febb9423ed&fbclid=IwAR0tftI49PwIi0XOnwH0xGO3ovufgWNa8kwGrMilpQcqPSWv-bMiJ-Y8KP4