Avenir® Complete Hip System

Intuitive & Reproducible

During its decade of experience in the bone compaction stem market, the Avenir® Hip System has helped surgeons experience flexible, and reproducible surgeries, reportedly even for first time users1.

The Avenir specific broaches were designed to allow a precise, balanced and intuitive femoral preparation aiming to help reduce the risk of subsidence and foster long-term stability while offering surgeons straight forward operative techniques.

  • Designed to Reduce the Risk of Subsidence and Provide Surgical Reproducibility
    Bone compaction philosophy subtly balanced designed to allow cortical contact where needed
  • Intuitive Surgical Approach
    Broach only technique and intuitive femoral preparation designed to help facilitate efficient OR experience

Avenir Cementless Stem

Surface Finish and Macro Structure Meant To Last

Avenir
  • Ti-6Al-4V
    Cross-section forged titanium alloy, Protasul®- 64 WF supporting a double layered coating of vacuum plasma sprayed commercially pure titanium under a thin layer of hydroxyapatite
  • Cross-section
    Rectangular with smoothed edges designed for rotational stability while helping reduce the risk of bone cracking
  • Fully Polished Neck
    Designed to help reduce wear debris
  • Proprietary Macro-Structure, Designed to Facilitate Distribution of Loads
    • Metaphysis - Medial and Frontal Planes
      Angled ridges designed to ease proper seating of the stem on the calcar
    • Diaphysis - Frontal Plane
      Vertical ridges designed to facilitate stem insertion and increase bone contact surface
    • Lateral Plane
      Vertical ridges increase bone and stem bonding surface to help resist tensile forces
  • Double-layered Coating Designed for Long-term Stability
    The undercoat of commercially pure titanium vacuum plasma spray (CP-Ti) allows the application of a thin hydroxyapatite top coat. This combination may help reduce the release of third body particles and associated risk of aseptic loosening.
    • Forged titanium alloy with sandblasted finish
    • Vacuum plasma spray of commercially pure titanium (50μm)
    • Hydroxyapatite coating (110μm)

Instrumentation

Bone Compaction System with a Specific Broach Design

Avenir-2
  • Balanced Rasp Design
    The Avenir Hip System aims to offer a balance between cancellous and cortical bone contacts. The rasp design favours compacted cancellous bone in the proximal and distal portions of the femoral canal and cortical contact in the metaphysis.
    • Designed to help foster primary and rotational stability
    • Aiming to help reduce the risks of distal locking, stress shielding and subsidence
  • Size Match Between Implant and Rasp
    Accurate sizing between the rasps and final implant was developed to help align bone, rasp and implant resection lines. Once preparation of the femoral canal is achieved, the stem is likely to seat in the same position as the last rasp.
    • Designed to help reduce the risk of subsidence
    • Allows reproducible surgery
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Surgical Techniques

References

  1. Data on file at Zimmer Biomet
  2. Janssen et al. Finite element analysis of the effect of cementing concepts on implant stability and cement fatigue failure. Acta Orthopaedica. 80 (3): 319–324. 2009.
  3. Langlais et al. Annotation – the « French Paradox » - The Journal of Bone & Joint Surgery. 85B. 17-20. 2003

 

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