The Natural Selection | 7A* ODEP Rating
Building on the strengths of the proven Furlong® H-A.C. femoral stem with adaptations to optimise ease of use without compromising the ability to achieve secure immediate and long term fixation and excellent clinical outcomes.
Key Advantages
The Furlong® Evolution was designed on the strengths of the Furlong® H-A.C. but has been adapted to optimise ease of use without compromising on the ability to achieve primary mechanical fixation and long term secondary biological fixation through osseointegration.
The Furlong® has evolved to even more closely match the needs of:
- Patient
- Surgeon
- Theatre staff
- Theatre management
- Procurement
- Sterile services
Furlong Evolution® Design Criteria
The Furlong® H-A.C. by preserving the principles set out by Mr. Furlong to achieve absolute mechanical stability, rotational stability under dynamic load, and long-term physiological fixation.
To achieve accurate implantation, predictable and reproducible positioning and stability.
Simple, concise, easy to use.
Rotational stability under dynamic load
Proximal body of the Furlong Evolution® is designed to fit the metaphysis of the femur;
- Rectangular cross section of the proximal body provides rotational stability under dynamic loading
- Load transferred and transmitted by the interface between the prosthesis and cancellous bone
Absolute mechanical stability
Cone shaped geometric transition between proximal body and cylindrical distal stem;
- Prevents subsidence
- Stress transfer creates ‘hoop stressing’ of the cortical bone providing early stable mechanical fixation
Long term physiological fixation
- 35+ years experience of developing H-A.C. technology
- JRI unique coating has high crystallinity – resorbs slower
- Vacuum plasma spray (VPS) technology – resists thermal cracking and gas pores to prevent delamination compared to atmospheric plasma spray (APS) adopted by many companies
- Patented Supravit® Zoned coating (175mm) is applied to Furlong Evolution® – Designed to increase H-A.C surface area, coefficient of friction, and sheer strength to promote biological fixation
