Dear elfmom, An excellent
resourceResource optisource for you to read about the different options for reconstruction or
prosthesisHeart valve surgery
Knee joint replacement prosthesis is Dr. Susan Love's Breast Book (you can get a copy of this book at a library, if they don't have a copy they can order it for you). There is a chapter which is dedicated to description of various options with diagrams of the procedures, and is written in language for the lay person.
good luck
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