This is an app for the 2018 International Consensus Meeting for Periprosthetic Joint Infection (PJI) to be held in Philadelphia. This meeting is held under the leadership of Dr. Javad Parvizi MD FRCS and Dr.Thorsten Gehrke MD. Almost 500 plus international specialists in the Orthopaedic infections meet, discuss and vote on various questions with regards to PJI. This event is held every five years and issues guidance on current diagnosis and treatment and also the direction of future research in this field.