POLARCUP - Dual Mobility
Prof. Bousquet and the Medical School of Saint Etienne in France offered an answer to dislocation by creating the DUAL MOBILITY CONCEPT in 1976: an insert locked on a femoral ball head and moving freely in a thin metallic shell. This Dual Mobility principle consists in combining the advantagesof low friction with those of a big ball head.This concept offers an extremely low dislocation rate, both for primary hip replacement and revision situations such as repetitive dislocations.
Features
Low rate of dislocation
- The diameter of the joint becomes the insert's diameter.
- A superior-posterior 6º skirt under equatorial rim guarantees additional stability.
- The self-centering insert decreases the impingement with the femoral neck.
- The free insert more easily compensates slight deviation of the recommended cuppositioning.
Low wear rate
- The optimised cup design prevents impingement with soft tissues and the femoral neck.
Extended range of motion compared to standard cup systems
- The high head/neck ratio significantly increases the ROM.
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