The ABG™II Cement free Hip System shows family character. The Standard ABG™II and ABG™II Modular provide some common benefits that will convince most surgeons.

Design Objectives

The aims of the ABG™II Hip System are to provide total hip replacement that is the most anatomic, that means:

• Long Lasting
  
• Pain Free
  
• Fully Functional
  
• Easy to implant successfully

These are intended to be achieved by re-establishing physiological load transfer in both the acetabulum and the femur through the ABG™II Hip System which provides:

• Anatomical femoral shape with only proximal fixation
  
• Hemispherical acetabular component
  
• Titanium alloy
  
• Hydroxyapatite coating

The anatomical shape of ABG™II’s femoral component

The ABG™II Modular femoral component is based on the anatomical shape of the ABG™II Cementless femoral stem and follows the natural contours of the femur in all three dimensions.

This helps establish:

Primary Stability

• The anatomical shape of the femoral stem allows it to adapt to the contours of the femur.

Normal Physiological Loading

• this close three-dimensional conformity with the femur ensures that the load transfer pattern imitates the Natural distribution of stress. Bone stress levels  are also maintained within physiological limits, as this keeps the bone in the proximal femur healthy and reduces resorption.

Proximal Load Transfer

• The system’s biomechanics are designed to be as close as possible to those of the normal femur. To achieve this, the distal part of the stem is made undersized, purposely, and load transfer is only allowed to occur proximally. Distal contact between stem and bone is also avoided. The distal part of the stem is polished to prevent bone ongrowth in the event of any contact. This reduces stressshielding and prevents proximal bone resorption from occurring.

The re-establishment of normal anatomical loading of healthy bone encourages bone remodelling around the prosthesis. It also prevents bone resorption. As a consequence, healthy bone stock is maintained around the implant long-term and a stable firmlyfixed total hip replacement is achieved.

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