I need a TKR in one knee (Stage 4 OA) but as I’m not near 60 yet, I’m holding off on the op as long as i can, and the surgeon who has looked at the x-ray and examined my knees agrees that waiting if possible is the best option, as they tend to only last 10-15years tops, depending on types of activity, and activity levels and your weight etc and the op is never as successful second time around and you end up with a slightly shorter leg as a result , plus it ain’t something i wish to repeat, So after he referred me to the orthotics dept for an unloading knee brace which helps quite a bit as far as walking around goes though i dare not run or jog /jump