ARLINGTON, Tenn.--(BUSINESS WIRE)--Wright Medical Group, Inc. (NASDAQ: WMGI), a global orthopaedic medical device company, is pleased to announce the launch of the EVOLUTION™ Medial- Pivot Knee System. The EVOLUTION™ Knee System represents Wright’s next generation in medial-pivot knees, featuring enhanced instrumentation, more sizing options and a posterior stabilized option. These and other features of the new EVOLUTION™ Medial-Pivot Knee System will be demonstrated in the following surgery webcast events: