Japan's Kaori Sakamoto went back-to-back as women's figure skating world champion Friday, winning with a total of 224.61 points after coming second to South Korea's Lee Hae In in the free skate.Sakamoto's 5.62-point win in Wednesday's short program proved crucial to her title defense, enabling her to hold onto top spot after 17-year-old Lee delivered a sparkling free skate performance at Saitama Super Arena to earn silver with a 220.94 total.The South Korean become her country's first medalist at the ISU World Figure Skating Championships since Kim Yu Na won in 2013.Belgium's Loena Hendrick…READ FULL ARTICLE