The occurrence of primary and revision total hip and knee arthoplasty in the United States is increasing [1] due to several factors which include aging population and longer life expectancies [2]. The hip joint is one of the most commonly replaced joints with more than 120,000 artificial hip joints being implanted in the United States [3]. Complications associated with hip replacements include aseptic failure and prosthetic-joint infection [4]. Implant failure is known to cause significant morbidity, pain on weight-bearing, and increased health care costs [2, 5].

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