• Extensive range of options
  Within the range there are cemented and cementless femoral components and standard and dysplasia cups.
   
• Femoral Component
  Cormet femoral components are available in 4mm increments from 40mm to 56mm outside diameter, and are manufactured to exacting standards, ensuring optimum sphericity and surface finish.
   
• Cementless Heads
  Introduced in 1998 to give the surgeon more flexibility, the femoral head can be prepared and then an intra-operative decision can be made between the cemented or cementless head.
   
• Acetabular Component
  Cups are available in 2mm OD increments from 46mm to 64mm, with two cup sizes for each head size, providing surgical flexibility.
   
• Bi-coating
  All cups and cementless heads are bi-coated™ with a plasma sprayed porous titanium coating overlaid with hydroxyapatite, which provides excellent primary and long-term fixation.
   
• Dysplasia Cup
  An advanced dysplasia cup is available for use in the deficient acetabulum in both hip resurfacing and large diameter total hip replacement. The use of a unique twin thread diameter screw design allows the screw to be advanced within the acetabulum prior to engagement with the cup flange, thereby minimising the possibility of the cup being disturbed from its chosen position during insertion. The tapered section between the two diameters of the screw allows the thread form to be constant over the entire length of the screw. Based on a standard cortical bone screw, the screw tip is fluted to allow self-tapping. This unique design has the benefits of easy introduction, improved cup positioning and increased pullout resistance.

Flexibility of Surgical Approach
Cormet has been developed into a comprehensive system which allows the surgeon to decide which surgical approach and device options he wishes to use and are appropriate for a specific patient. Cormet instrumentation is suitable for posterior, antero-lateral and other approaches including the modified Ganz approach.

Clinical History
Excellent medium-term results have been published for the Corin Resurfacing Hip system. Multi-centre results show a 96% survivorship at 7 years¹ for the Cormet Hip Resurfacing.

Precision Instruments
The third generation of advanced instrumentation for Cormet Hip Resurfacing allows small incision surgical approaches to be used for Cormet Hip Resurfacing. The Cormet Precision instruments eliminate the need for a complex, bulky head centering jig. The vacuum introducer is a unique, patented technology - standard theatre suction is used to attach the cup to the introducer for implantation of the acetabular component.

The Precision head centring device eliminates the need for a lateral pin and allows a smaller incision to be used in both standard and MIS approaches, reducing tissue damage and potentially improving post-operative recovery times. The instruments are simple to use, reducing operating time and allowing more accurate, reproducible placement of the femoral resurfacing component.

Wear Properties
Exacting manufacturing techniques mean that the high carbon cobalt chrome bearing surfaces are optimised to minimise wear. Optimal sphericity, surface roughness and diametrical separation of the components result in enhanced lubrication of the bearing, which reduces wear, as well as providing effective function and longevity. Studies have shown that optimised sphericity and diametrical separation are by far the most important factors influencing the wear of metal-on-metal bearings.

“Cormet is a comprehensive system which adapts to the preferences of the surgeon while meeting the real needs of the younger active patient”