BI-MENTUM™ Dual Mobility System
BI-MENTUM™ Dual Mobility System
BI-MENTUM™ is a monoblock dual mobility hip system which is the first in a cadence of Dual Mobility options within the DePuy Synthes portfolio. The BI-MENTUM™ Dual Mobility system has 40 years clinical heritage1 and provides optimal head to shell ratio.2 The BI-MENTUM™ Dual Mobility system is for patients with fractured neck of the femur (FNOF) and for complex primary procedures.3-5
MEDIA
BI-MENTUM™ is a monoblock dual mobility hip system which is the first in a cadence of Dual Mobility options within the DePuy Synthes portfolio. The BI-MENTUM™ Dual Mobility system has 40 years clinical heritage1 and provides optimal head to shell ratio.2 The BI-MENTUM™ Dual Mobility system is for patients with fractured neck of the femur (FNOF) and for complex primary procedures.3-5
How Do You Manage Complex Cases?
AOANJRR shows that dislocation is the #1 reason for revision of NOFF patients who receive THA.6
Currently available evidence indicates that a dual mobility implant is becoming a leading treatment option to address instability for complex primary3-5 fracture neck of the femur (FNOF)7-9 and revision hip surgery.10-12
Managing Patients with a Higher Risk of Dislocation
BI-MENTUM™ Acetabular Cups are especially indicated for patients demonstrating a high risk of instability.13
Fractured NOF:
- 97.3% All-Cause Cup Survivorship at 6.8yrs.
- 0 Dislocations, 0 Intra-Prosthetic Dislocations.14
Mixed Cohort (Mostly OA):
- 98.6% – 100% All-Cause Cup Survivorship at 10yrs.
- 0 Dislocations, 0 Intra-Prosthetic Dislocations.15-16
Features & Benefits
Press-Fit Primary Fixation Features
- Forged stainless steel shell for rigidity.
- Slight flattened pole (-0.5mm), designed to reduce expulsion stresses.
- Line to line surgical preparation.
+ 3 mm Cylindrical Rim
- Increases jump distance (AB) compared to a hemispherical bearing, which decreases dislocation risk.17
BI-MENTUM™ Options
BI-MENTUM™ Pressfit Acetabular Cup
BI-MENTUM™ Cementless dual mobility cups are coated with plasma sprayed titanium (150 +/- 30 μm) and hydroxyapatite (70 +/- 20 μm). All cup variants have a polished bearing surface with a 3 mm cylindrical extension which increases jump distance compared to a hemispherical bearing.
- A macrostructure of concentric rings increases the surface area with the aim of improving primary fixation.
- The external pole of the cup is slightly flattened (-0.5 mm) to reduce stresses at the base of the acetabular (preventing the cup been forced out of the acetabular) allowing better cup impaction and pressfit at equator of the cup.
BI-MENTUM™ Cemented Acetabular Cup
BI-MENTUM™ Cemented dual mobility cups are grit blasted and have radial, circumferential and longitudinal grooves to aid primary anchoring and rotational stability in the cement mantle. Cemented cups can be used alone or in combination with the BI-MENTUM™ Reinforcement Plates.
BI-MENTUM™ Polyethylene Acetabular Liners
The unconstrained polyethylene (PE) Liners are made from conventional UHMWPE (GUR1020). When articulating within the polished stainless steel cup, a PE liner transfers reduced torque to the cup when compared with hard on hard bearings.18
Managing Patients with a Higher Risk of
Peri-Prosthetic Fracture
Peri-Prosthetic Fracture remains a major complication following THR, often associated with a poor outcome, high mortality rate and incomplete functional recovery.19 Advanced age is considered a risk factor for post-op peri-prosthetic fracture.19
15-year data shows that CORAIL® Collar has significantly fewer revisions due to peri-prosthetic fracture when compared to all other cementless hips in both the AOANJRR20 and the UKNJR21.
Agreement with SERF
To further enhance the DePuy Synthes portfolio, a strategic co-operation and supply agreement has been formed with Société d’Etude, de Recherche et de Fabrication (SERF) to exclusively launch the SERF NOVAE® SunFit TH Dual Mobility System under the brand name BI-MENTUM™ Dual Mobility System.
SERF is the original developer of the dual mobility implant with over 40 years of clinical experience.1 According to a recent clinical study, the SERF NOVAE® SunFit TH Dual Mobility system, which was introduced in 2007, has clinical results showing that the first 100 patients (104 primary total hip arthroplasties) had a 100% cup survivorship with zero dislocations at 10 years.15
History
1979
NOVAE-1
Tripod Fixation
1998
NOVAE
Liner Optimisation
1999
NOVAE E
Hemispherical Cup with 3 mm Cylindrical Extension
2000
NOVAE Sunfit
Pressfit Only Fixation with Alumina and Hydroxyapatite Coating
2007
NOVAE TH
Circumferential Macrostructure and Titanium and Hydroxyapatite Coating
2018
BI-MENTUM™
Identical Pressfit Design, Fractures and Coating as Novae TH
Over 40 years
Over 40 years clinical experience.1*
* SERF NOVAE® Dual Mobility Families of Cups
165,000 cups
165,000 cups provided worldwide since 2007.23*
* SERF NOVAE® Dual Mobility Families of Cups
