The incidence rate of revision per 100 years of observation for all-cause revision of the monoblock all-polyethylene components was 0.30, and for the metal-backed modular components it was 0.65.
Another finding of our analysis was that although infection is an uncommon cause of revision of a primary resurfacing arthroplasty (0.3%), it is a major cause of re-revision and accounted for 6 of the 24 re-revision procedures.
For reference, the tenth annual report of the National Joint Registry of England and Wales shows that uncemented total hip implant combinations with a metal-on-polyethylene bearing have a mean 5-year all-cause revision rate of 2.5% (CI: 2.4 2.7).
Systematic investigations undertaken in the 1980s and '90s revealed information that may cause significant revision of the theories about the development of Mayan culture.
Over the past 5 7 years, there has been a re-emergence of corrosion of the head neck junction as an important symptomatic clinical entity and cause of revision of metal-on-polyethylene total hip arthroplasty.
The percentage of fractures (39%) as a cause of revision of the primary was similar in our analysis (43%).
Deep infection is the third most common cause of revision of THAs in Denmark (DHR Annual repport 2008).
The main cause of revision of the Elos and Gibbon prostheses was aseptic loosening of the distal component, but in 3 cases deep infection was the reason for revision of the Gibbon prosthesis.
The most common cause of revision of MoM THA at 8 years of follow-up in Australia was metal-related pathology, followed by aseptic loosening and infection for femoral head sizes larger than 32 mm (Australian Orthopaedic Association 2013).
Aseptic loosening is the major cause of revision of total hip arthroplasty (THA), and data from the Nordic national hip registries have demonstrated higher revision rates, up to 20% after 10 years, for younger patients (Kärrholm et al. 2008, Overgaard et al. 2008).
Nonetheless, a second strike by African mine workers, in 1940, caused a revision of wage scales to take account of accumulating experience and skill.
