My physical therapist is suggesting I try a valgus knee brace to help with my knee OA.  Is this recommended and will it help me?  They are very expensive.

OA knee valgus braces help to alleviate the compression that occurs at the inner knee joint line that results in a lot of knee pain typical of OA.  Sometimes patients see good relief with these braces and sometimes not. The current treatment guideline for knee OA found evidence to be inconclusive regarding the effectiveness.  While they are expensive, most companies give you a 30-day trial period to let you figure out if the brace will benefit you.