Spain's troubled king gets new hip operation Surgeons replaced Spain's King Juan Carlos's left hip for the third time on Thursday, the latest in a string of operations that have raised questions about the future of his reign. The 75-year-old king, who has appeared in public on crutches and looking frail this year, could be walking again unaided in no more than three months, surgeons said. Images and soundbites from the press conference by the king's doctors?