We recently stumbled upon this question on Yahoo! Answers:

What type of knee brace is good for someone who has arthritis in the knee?

My right knee has arthritis. The pain comes and goes. I love jogging and tennis but it just kills me. I hate to give those up but will if it gets too bad. But is there any good knee braces on the market that might alleviate the pain and prevent more damage?

While knee braces can't cure arthritis, they can definitely help alleviate pain in the knee. Many arthritis knee braces help by shifting pressure away from the unhealthy areas of the knee to the healthier areas.  Plus, by reducing pain, arthritis knee braces encourage movement and activity, helping to strengthen muscles around the knee.

There are many types of arthritis and the symptoms may vary from patient to patient. Speak with your doctor to see if arthritis knee braces are an appropriate part of treatment for your arthritis and activity level. You may want to check out some of these leading arthritis knee braces:

DonJoy OAdjuster Osteoarthritis Knee Brace - Ideal for moderate to severe ligament instabilities and post-knee surgery.
DonJoy OA Everyday
- Ideal for mild or moderate osteoarthritis and mild ligament damage for daily activity.
DonJoy OA Lite Osteoarthritis Knee Brace
- a customizable sleeve-style wrap for mild osteoarthritis.
DonJoy OA Assist Osteoarthritis Knee Brace
- for those with mild to moderate osteoarthritis to reduce pain during daily activities.
DonJoy OA FullForce Arthritis Knee Brace
- a light arthritis knee brace that helps active patients go more miles with less pain