Double Mobility – A Well Known Concept
The double mobility concept was introduced in 1976 by Prof. G. Bousquet for use in total hip replacement with the goal of preventing chronicle dislocations. This goal was successfully achieved2,3,4 by combining two fundamental principles: the first is the concept of low friction arthroplasty as described by Sir J. Charnley, where by a small 22mm head articulating against a polyethylene liner has a low risk of failure due to wear5; the second is McKee’s concept, which recommended the use of large diameter bearings to minimise the risk of subluxation.
The retentive mechanism of the Avantage™ ArCom™ insert, its large diameter, along with the unique patented anatomical cup design...
- Greatly minimises the risk of femoral head dislocation6
- Offer greater stability7
- Provide greater range of motion and virtually eliminate the risk of component-to-component impingement8
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