In August 2010, manufacturer DePuy recalled its ASR total hip replacement system due to reports that the failure rate, as measured by studies carried out in the UK, was 13 percent over five years. Other problems related to other hip replacement devices created by DePuy have also been reported.
DePuy and Johnson & Johnson began marketing ASR total hip replacement systems in the U.S. in 2005 after receiving a “501(k) clearance” from the U.S. Food and Drug Administration (FDA). The hip replacement comprises a rounded metal piece, called the “head” or “ball,” that sits inside a metal lining. The ball moves inside the lining, mimicking the action of the natural hip joint. The purpose of the hip replacement system is to improve mobility in patients who have suffered broken hips or other hip injury or damage.