All the conclusions drawn from these data have intrinsic and unavoidable limits due to the low rate of revision (less than 3%) that affect primary Total Hip Arthroplasty.
We therefore conducted separate analyses for the period 2002 2009 for revisions performed less than 3 weeks after the primary THA (73 revisions, 15%), 3 12 weeks after the primary THA (101 revisions, 21%), and more than 12 weeks after the primary THA (315 revisions, 64%).
The revisions come less than two months after John F. Welch Jr., the chief executive of G.E., broke up a merger between Honeywell and the United Technologies Corporation.
It was the industry's second sharp earnings revision in less than six months, after a profit forecast of $9.6 billion for 2008 made in June.
The revision proved less than successful, and in 1990 the City Planning Commission established new building districts in an attempt to decrease the flood of new building in Manhattan.
Moreover, aseptic loosening was the cause of approximately 18% of revision at less than 2 years after THA.
Although the success rate of one-stage revision is less than 50% [ 2, 9], this modality can still be used for short-term infections or patients with extreme comorbidities [ 19, 20].
Femoral neck fracture was the reason for revision in 19% of all revisions, which is less than in previous reports (Australian Orthopaedic Association, Johanson et al. 2010).
14 implants had no revisions and 14 had less than 100 revisions published in non-registry studies (i.e. not related to registries).
