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- SIGNATURE Duo
SIGNATURE Duo
DUAL MOBILITY CUP
Motion Redefined
Dislocation is one of the most prominent causes of THA failures in Primary and Revision Procedures.
Signature DUO, a Dual mobility system by Biorad Medisys, is designed to provide an increased range of movement and to decrease the risk of dislocation. It is a prominent solution to both primary and revision THA, reducing wear and enhancing stability without sacrificing natural movement.
Signature Duo, due to its unique design dual mobility philosophy, offers multiple benefits like
- Reduced risk of dislocation
- Higher range of motion
- Reduced wear rate
Acetabular Cup
- Plasma-sprayed titanium coating: To provide primary fixation and secondary bone integration
- 4 Pegs: For better fixation and rotational stability
- 4 Rows of Serrations: Provide peripheral fixation
Neutral Liner
- Longevity: XLPE wears less and lasts longer
- Chamfer Edge: Provides higher ROM and avoids stress between the poly insert and stem at higher ROM
Frequently Asked Questions
What are the key features of the SIGNATURE DUO Cup?
The SIGNATURE Duo is a dual mobility cup designed to increase range of motion and reduce the risk of dislocation. Its acetabular cup features a plasma-sprayed titanium coating, four pegs, and four rows of serrations for fixation and rotational stability. The neutral liner uses XLPE and a chamfered edge to support longevity and higher range of motion.
What is the benefit of the plasma-sprayed titanium coating?
The SIGNATURE Duo acetabular cup has a plasma-sprayed titanium coating designed to provide primary fixation and support secondary bone integration. This coating creates a surface intended to facilitate biological fixation following initial implant stability, contributing to secure acetabular component fixation.
Who may benefit from a dual mobility hip replacement?
Dual mobility implants may be particularly beneficial for patients with an increased risk of hip dislocation, including selected patients undergoing revision THA. They may also be considered in primary THA where enhanced stability is clinically desirable. Patient selection depends on factors such as age, activity, anatomy, previous surgery, and individual risk factors.
Is a dual mobility hip replacement better?
Dual mobility hip replacement is not universally “better” than conventional hip replacement; its advantages depend on the patient and clinical situation. Evidence suggests dual mobility constructs can reduce dislocation risk while providing good functional outcomes, particularly in patients at higher risk of instability. The choice should be based on individual patient factors and the surgeon’s clinical judgment.
Does a dual mobility hip implant last longer?
Dual mobility implants are designed to provide low wear and long-term performance, and the SIGNATURE Duo uses an XLPE liner intended for reduced wear and greater longevity. However, current evidence does not establish that all dual mobility implants universally last longer than conventional hip implants. Implant longevity depends on factors including implant design, fixation, patient factors, surgical technique, and bearing wear.
