By: 1 May 2007

The Novae Dual Mobility Cup is primarily indicated to reduce the risk of hip dislocation.

The Dual Mobility principle has remained unchanged since 1979, with over 100,000 implantations performed to date.

The Novae Dual Mobility Cup implant system consists of a mobile polyethylene (PE) liner that is free to articulate within a polished metal back shell, whilst the metal head of a stem is also able to articulate within the retentive PE liner.

Studies have demonstrated the excellent clinical results of the Novae Dual Mobility system, with an average of 95% survivorship at 12 years. A number of clinical studies on explants have also shown that PE wear in the Novae Dual Mobility Cup is no greater than on a standard metal/PE articulation.

The Dual Mobility principle significantly increases both the range of motion, and forces required for de-coaptation, thus reducing the risk of dislocation (1 in 1100 at the University Hospital of Caen, Aubriot 1995), whilst at the same time eliminating the leverage forces acting on the implant/ bone interface found on constrained liners.

The Dual Mobility system is available in a range of sizes and options for cemented, cementless or reconstructive surgery. Every cup can be combined with any 22.25 or 28mm head.

The Dual Mobility system is indicated for a number of conditions, including: <ul=”ul”>

  • Recurrent dislocators
  • Non compliant patients
  • Femoral tumour resections
  • Joint laxity (multiple revisions, neuromuscular, age)
  • Fractured neck of femur
  • Active elderly patients
  • All revisions