Arthritis and broken bones

With OA the symptoms gradually get worse so I suspect you are at the next stage. The injury may have put extra pressure on the knee. Time to talk to a knee expert to see what they can do 

I've read that injury sites are often where arthritis sets in first. I have sprained both ankles years ago and fallen numerous times on my knees while skating. My knees and ankles were my first sites to contract arthritis.

Since then my lower back, fingers, shoulders, hips, and elbows have begun to scream!

I was always extremely active as a kid, teen, and young adult. Tree climbing, jumping off stuff, falling off my bike, skating, etc. I am reaping the "rewards" of all those activities NOW as I battle arthritis.

I probably would have contracted arthritis if I would have been a couch potato because both sides of my family have Osteoarthritis. I probably SECURED my fate with injuries I contracted early in my life. I've not broken any bones though I've sprained those ankles and used up boxes of Band-Aids and bandages over the years on my knees and elbows!

I had a tibial plateu fracture nearly three years ago.  I was told at the time that there was a very small amount of OA showing on the xrays and that this would almost inevitably become worse in the fractured limb.  But I have to say I have not noticed any trouble with my knees.  I have taken glucosamine (1000 mg twice a day) for many years and otherwise eat a pretty healthy diet with attention paid to avoiding refined grains and sugar, reserving them for treats.