Metal release and metal allergy after total hip replacement with resurfacing versus conventional hybrid prosthesis.

ABSTRACT:

Background

Metal-on-metal (MOM) total hip arthroplasties were reintroduced because of the problems with osteolysis and aseptic loosening related to polyethylene wear of early metal-on-polyethylene (MOP) arthroplasties. The volumetric wear rate has been greatly reduced with MOM arthroplasties; however, because of nano-size wear particles, the absolute number has been greatly increased. Thus, a source of metal ion exposure with the potential to sensitize patients is present. We hypothesized that higher amounts of wear particles result in increased release of metal ions and ultimately lead to an increased incidence of metal allergy.

Methods

52 hips in 52 patients (median age 60 (51-64) years, 30 women) were randomized to either a MOM hip resurfacing system (ReCap) or a standard

SUBMITTER: Gustafson K 

PROVIDER: S-EPMC4105764 | biostudies-literature | 2014 Aug

REPOSITORIES: biostudies-literature