SAN DIEGO, CA -- (MARKET WIRE) -- February 16, 2007 -- 2007 AAOS ANNUAL MEETING BOOTH #1642 -- According to the results of a prospective, randomized study published in the February, 2007 edition of The Journal of Bone and Joint Surgery (JBJS), the PLUS Orthopedics PiGalileo™ computer-assisted surgery system significantly improves knee implant alignment during total knee replacement surgery, as compared to conventional total knee replacement.