Which of the following statement(s) is/are correct concerning total joint replacement arthroplasty?
A.	Total knee and hip prostheses have a life expectancy of approximately 10 years
B.	The major failure of total joint arthroplasty is aseptic mechanical loosening at the interface between the bone, cement, and implant
C.	Biologic tissue ingrowth into a prosthesis worsens long-term results
D.	Rigid fixation at the time of implantation is important to secure tissue ingrowth
Answer:B
Which of the following statement(s) is/are correct concerning total joint replacement arthroplasty?
A.	Total knee and hip prostheses have a life expectancy of approximately 10 years B.	The major failure of total joint arthroplasty is aseptic mechanical loosening at the interface between the bone, cement, and implant C.	Biologic tissue ingrowth into a prosthesis worsens long-term results D.	Rigid fixation at the time of implantation is important to secure tissue ingrowth