A 2011 article by YM Kwon et al. titled “‘Asymptomatic pseudotumors after metal-on-metal hip resurfacing arthroplasty: prevalence and metal ion study.” published in The Journal of Arthroplasty cites that “Symptomatic abnormal periprosthetic soft-tissue reactions (“pseudotumors”) have been reported after metal-on-metal hip resurfacing arthroplasty (MoMHRA).”

Accordingly, the aims of this study were twofold: “(1)

In a 2011 article by NP Hailer et al. titled “Elevation of circulating HLA DR(+) CD8(+) T-cells and correlation with chromium and cobalt concentrations 6 years after metal-on-metal hip arthroplasty.” published in the medical journal Acta Orthopaedica, researchers state “Following metal-on-metal hip arthroplasty (THA), immunological reactions including changes in lymphocyte populations, aseptic

In a 2011 report by AJ Hart et al. published in Clinical Orthopaedics and Related Research, researchers write “Many factors affect the blood metal ion levels after metal-on-metal (MOM) hip arthroplasty” and “The main surgically adjustable variable is the amount of coverage of the head provided by the cup which is a function of

In 2006, the government-mandated Canadian organization Health Quality Ontario published the results of a study in Ontario Health Technology Assessment Series that aimed to “assess the safety and effectiveness of metal on metal (MOM) hip resurfacing arthroplasty for young patients compared with that of total hip replacement (THR) in the same population.”

This study, titled

Citing that “There is widespread concern regarding the incidence of adverse soft-tissue reactions after metal-on-metal (MoM) hip replacement” and “Recent National Joint Registry data have shown clear differences in the rates of failure of different designs of hip resurfacing,” a study by DJ Langton et al. (2011) aimed to “update the failure rates related to