Below is an instruction from Human. Write a response.
    ### Instruction:
    What is (are) Prosthetic joint infection ?
    ### Response:
    A prosthetic joint infection (PJI) is a rare complication of joint replacement surgery, also known as arthroplasty.  Arthroplasty is done to help relieve pain and restore function in a severely diseased joint, such as a knee, hip or shoulder.  Approximately 0.
    