Cormet Hip Resurfacing Goes From Strength To Strength

Cormet Hip Resurfacing Goes From Strength To Strength

Cormet Hip Resurfacing, based on the original metal-on-metal hip resurfacing device pioneered by Corin and introduced in 1991, has now been in clinical use for ten years and has gone from strength to strength in terms of its product offering, regulatory approval, and clinical results. Cormet was approved by the FDA in 2007 – the first hip resurfacing device in the world to received approval following a US-based multi centre clinical trial. Cormet is now being marketed and distributed by Stryker Orthopaedics in the US following the announcement of a ten-year exclusive agreement between the two companies.

Implant options Cormet offers one of the widest ranges of implant options available for hip resurfacing. Cementless resurfacing heads, an innovation developed by Corin and introduced in 2002, are now in widespread use in the UK and other markets and may reduce long-term femoral failures due to head/neck necrosis. Optimom combines the benefits of large diameter metal-on-metal resurfacing arthroplasty with those of a stemmed femoral prosthesis that does not depend on the bone quality of the femoral neck. Precision instrumentation eliminates the need for a complex, bulky head centering jig and allows a smaller incision to be used in standard and MIS approaches, reducing tissue damage and potentially improving post-operative recovery times. The company has also recently extended the range of implant sizes.

Clinical results In a UK multi-centre study1, a total of 905 procedures in 782 patients have been recorded by nine surgeons at five centres using three different surgical approaches, with a maximum follow-up of 9.5 yrs. Kaplan-Meier survivorship is 93% at 9 to 10 years and survivorship in the OA subgroup was 96.7%. The majority of failures were due to femoral neck fracture, which in turn was generally associated with the posterior approach. The results of this multi-centre cohort indicate highly satisfactory outcomes for Cormet Hip Resurfacing in terms of HHS and implant longevity. Cormet is a comprehensive hip resurfacing system with an outstanding pedigree and clinical history, which adapts to the preferences of the surgeon while meeting the real needs of the younger active patient.

1. 10-year multi-centre evaluation of the Cormet Hip Resurfacing Arthroplasty. R Spencer, M Bishay, S Krikler, U Prakash, P Foguet, D Griffin, D Pring, M Norton & R Nelson. British Hip Society Annual Scientific Meeting 2007

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