The career of Blues forward Jamie Langenbrunner, a two-time Stanley Cup champion and captain of the 2010 U.S. Olympic team, could be over. Langenbrunner, 37, has a torn labrum in his left hip and will undergo surgery, which would lead to a five- to six-month rehabilitation process. It will be the end of Langenbrunner’s 2013 season and possibly his 18-year NHL career. The winger is working under a one-year, $1.25 million contract with the Blues, and will become an unrestricted free agent in June. “Not exactly the way you envision things,” Langenbrunner said. “You battle through the lockout, try to get yourself ready to go and then obviously the body didn’t cooperate. But it’s something hopefully you get taken care of, hopefully you feel that much better and you’re able to try going at it next year.” But a veteran of 1,109 NHL regular-season games and 146 in the postseason, including Stanley Cup championships with Dallas and New Jersey, Langenbrunner is aware of the consequences of having major surgery in the twilight of his career. During the lockout, while spending time with his family, Langenbrunner claimed to have overcome the fear of retirement. He acknowledged Saturday that the possibility exists that he has played his last game. “Yeah, you think about it,” he said.