Freedom Constrained Liner

Innovation: Unique 36mm head with circumferential flats Performance: Unparalleled Range of Motion & multiple liner options Results: Extremely strong resistance to dislocation  

Why Freedom^® Constrained Liner System?

Hip instability is one of the most significant challenges total joint surgeons face today. Not only are revision patients a higher risk for post-operative complications, but few options exist for successfully treating a chronically dislocating joint. The traditional constrained liner design relies almost exclusively on the metal ring to constrict the liner "mouth" and prevent dislocation - meaning that the bulk of distractive stresses (that is, forces pulling the joint apart) must be absorbed by only this small ring and a short polyethylene lip. Until today, this has been considered the best treatment option for chronic hip instability.

But now there is the Freedom^® Constrained Liner System, a new patent-pending design that incorporates a unique, revolutionary head geometry together with the strength of ArCom^® polyethylene and a titanium locking ring. This construct provides exceptional strength and resistance to dislocation, and it also allows for more than 110 degrees Range of Motion - unprecedented performance for a constrained device.

Patient, Surgeon, & Hospital Benefits

For the patient, the Freedom^® Liner…

• Allows return to normal, non-impact daily activities
• Provides maximum use of the leg without feeling unstable
• Minimises the possibility of further revision surgeries

For the surgeon, the Freedom^® Liner …

• Offers myriad options for treating the chronic dislocator
• Can reduce the risk of dislocation and instability
• Can provide exceptional stability while allowing an extremely wide range of motion

For the hospital, the Freedom^® Liner …

• May reduce immediate costs associated with early dislocators
• May reduce long term costs of treatment by negating the need for re-revision surgeries