4/11/13: Wedged insoles will help arthritic knees. The use has remained controversial in the literature. One of the main opponents of the use now has reversed her position. Kim L. Bennell just published a positive report.
Bennell KL, Kean CO, Wrigley TV, Hinman RS. Effects of a modified shoe on knee load in people with and those without knee osteoarthritis. Arth Rheum. Volume 65, Issue 3, (?doi/10,1002/art,v65,3/issuetoc) pages 701-709, March 2013.
Please note my previous work on this subject at www.DrLannysInsoles.com and www.GolfersKnee.com