Saturday, November 16, 2013

Australian Orthopaedic Association register identifies hip resurfacing implant with higher than anticipated revision rate


November 12, 2013
In their annual report, the Australian National Joint Replacement Registry identified the Cormet cemented resurfacing head and the Cormet HAP bi-coated cementless resurfacing head as having higher than anticipated rates of revision when used individually or in combination with the Cormet 2000 HAP, which is no longer being used, according to data from the report.
The report, which was prepared by Stephen Graves, MBBS, DPhil, FRACS, FA, OrthA, of the Australian Orthopaedic Association (AOA), contains data on hip and knee arthroplasty outcomes in Australia between September 1999 and December 2012.
“There is one resurfacing device being identified for the first time, the Cormet/Cormet prosthesis combination,” Graves and colleagues wrote in the AOA National Joint Replacement Registry. “The Cormet/Cormet has been used in 374 procedures and has a 10-year cumulative percent revision of 21.6%.”
Of the 50 revisions cited in the report, 62% were related to the femoral and acetabular component, while 30% were related to the femoral component alone. Other reasons for revision included loosening/lysis in 34% of cases, fracture in 24% of cases and metal-related pathology in 24% of cases.

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