The midfielder travelled to the United States on Monday to seek expert advice from New Jersey-based Dr John Cozzarelli.
Press Association Sport understands since arriving he has been assessed and has undergone a procedure which involves a series of injections but he has not had surgery.
Henderson has missed the last three matches with the problem and in his absence the team have earned just one point, in a goalless draw at Arsenal.
Has Henderson undergone surgery? pic.twitter.com/nTDYSfRGOx
— This Is Anfield (@thisisanfield) September 16, 2015
The side has missed his dynamism and particularly his forward running but with no date set for his return, Rodgers has to find a way of rejuvenating his midfield as the triumvirate of James Milner, Emre Can and Lucas Leiva struggled in defeats against West Ham and Manchester United.
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