A unit of Blue Cross and Blue Shield of Minnesota's parent company has invested an undisclosed amount in Fusionetics, a sports-medicine startup that aims to prevent orthopedic injuries. Milton, Ga.-based Fusionetics assesses how efficiently athletes move and identifies areas of weakness. Health care practitioners then create improvement plans for patients with the goal of reducing their risk of musculoskeletal injuries. Fusionetics' system also features a software application equipped with analytics...