In 2012, SS Jameson et al. published a study aiming to determine factors predictive of revision (replacement) of metal-on-metal hip implants. That study appears in the June edition of Journal of Bone and Joint Surgery, and is titled, understandably, “Independent predictors of revision following metal-on-metal hip resurfacing: a retrospective cohort study using National
DePuy Hip Replacement
2013 – DePuy ASR found six times as likely to fail as other metal-on-metal hip replacements
DePuy ASR metal-on-metal hip implants are frequently associated with premature device failure requiring revision (this prompted the recall of the ASR/ASRXL models in 2010) and femoral fracture. Much of the more recent research deals with the ASR complication of metal dissemination – the wearing off of tiny metal particles from the implants that…
2013 – High rate of failure associated with DePuy ASR hip replacements
Here is an excerpt from the abstract of a 2013 article published in Clinical Orthopaedics and Related Research by KT Hug et al.: “The Articular Surface Replacement™ (ASR™) metal-on-metal hip arthroplasty system (DePuy Orthopaedics, Inc, Warsaw, IN, USA) reportedly has a higher than anticipated early failure rate leading to a voluntary recall. This prompted…
UK Research Team Finds DePuy ASR 5-year Failure Rate at 19%
In 2012, GS Whitwell et al. published a report in the medical journal Hip International titled “The articular surface replacement implant recall: a United Kingdom district hospital experience.” summarizing the experience of one hospital after the 2010 DePuy ASR recall.
At the time of the ASR recall in 2010, 111 of…
2013 – DePuy ASR hip replacements associated with osteolysis, other serious side-effects
In 2013, a medical research team led by F. Randelli published an article in which it is stated “Patients with ASR implants (resurfacing and large-diameter (XL) metal-on-metal (MoM) total hip arthroplasty), even if asymptomatic and with a stable prosthesis, may present extremely high blood metal ion levels.” This article was titled “Radiographically undetectable periprosthetic…
2013 – Researchers Review Safety and Efficacy of DePuy ASR Hip Replacements
In 2013, a team of researchers led by A. Reito published a paper in Clinical Orthopaedics and Related Research titled “High prevalence of adverse reactions to metal debris in small-headed ASR™ hips.” with two ideas in mind. First, these researchers note that “There has been increasing concern of metal-on-metal (MOM) hip replacements regarding…
Research Shows: No Effect of Acetabular Inclination on Metal Ion Levels with DePuy ASR
Published online in June 2013 (print Jan. 2014) in The Journal of Arthroplasty, a study titled “The Effect of Acetabular Inclination on Metal Ion Levels Following Metal-on-Metal Hip Arthroplasty.” aimed to determine the degree to which the specific positioning of DePuy ASR hip replacement components changed blood metal ion levels in hip replacement…
2013 – DePuy ASR hips linked to high blood metal ion levels
A 2013 article published in Hip International titled “Blood levels of cobalt and chromium are inversely correlated to head size after metal-on-metal resurfacing arthroplasty.” by a team of researchers led by MC Parry from the UK aimed to “assess the effect of head size, implant design and component positioning on metal production by…
2013 – Study shows DePuy ASR failure rate 14.9% at 5 years
In a paper titled “Hip arthroplasty with the articular surface replacement (ASR) system: survivorship analysis and functional outcomes.” published in European Journal of Orthopaedic Surgery and Traumatology, the authors begin by stating “The articular surface replacement (ASR) hip resurfacing system, now withdrawn, has the highest all-cause revision rate (24.2 % at 7 years)…
2013 – Pseudotumors associated with DePuy ASR hip replacements
In 2013, a team of medical researchers from Uppsala University Hospital in Uppsala, Sweden led by NP Hailer published a paper titled “High Metal Ion Levels After Use of the ASR™ Device Correlate With Development of Pseudotumors and T Cell Activation.” in Clinical Orthopaedics and Related Research studying the safety of the DePuy…