I posted this thread here because I feel my knees were worn out at work. I was just wondering problems some of you may have had and what I might expect. 4 weeks ago I was getting out of my suv and stepped down as usual anf felt a sharp pain in my left knee. Swelling followed. I have been hobbling around since. The knee is now totally unstable. Some good days and some bad. It cracks and is shaky. I was hoping it wuuld correct itself but I think not this time. I is not like they were in good shape. I have a doctors appointment for monday so I hope it can be fixed by lawntime. If not I am in deep doo. One thing I know is this business can take its toll on our bodies after a number of years. There are a lot of rough lawns in these parts.