I can only tell you that people come to the liverflush forum and have to start the liverflush because they still have symptoms after the surgery.
The main reason is that the liver is still filled with stones (usually soft cholesterol ones) and it stops the bile flow. They can not be seen on an ultrasound.
Start reading cleansing at the top of the page.
Julia Chang's website http://www.sensiblehealth.com
Andreas Moritz website http://www.ener-chi.com Check healthinfo, articles, interviews.
Flowerchild59 has written a lot about on thi forum and the liverflush forum.
Click on the two forum at the bottom of the page "all messages-Username". The names are inalphbetical order I think hers start at page 6.