Anatomically Inspired Design

DJO Global extensively researched femoral morphology to design a platform that is ideal for the range of femoral canals encountered in revisions.

Exprt Revision Hip maximizes the femoral canal conformity by incorporating:

• 3° taper geometry for axial stability
• Optimized splines providing 0.2mm of press-fit on each side of the conical region
• 3° bow on longest distal stem to accommodate the natural bow
• Total construct lengths from 195-295mm
• Anatomic anterior distal relief curved in multiple planes

Efficiency

Cadaveric and design of experiment studies were conducted to enable a high level of accuracy and reproducibility of the implant seating height relative to the depth of the reamed canal.¹ The Exprt® approach to streamlining was applied and the result is an unmatched, 2 tray revision system – an 80-90% reduction in instruments compared to competitive systems.^2,3

What Does That Mean for You?

Streamlined instrumentation means less money and time spent on sterilization, less overall time in the operating suite, and less storage space - appropriate for both the hospital and ASC setting.

An Emphasis on Strength

The Exprt Revision Hip consists of modular shot peened, distal femoral stems and proximal bodies secured with a taper junction and bolt. Successful fatigue load testing was carried out at 2,300N (517 lbs) to 5 million cycles on worst case components.⁴ To further challenge the construct in this study, the potting depth was increased to 90mm below the center of the femoral head to create a larger moment arm and higher stresses.

At a time when modular head-neck junction features are being questioned for serving as the catalyst for fretting,⁵ remaining consistent with DJO’s clinically successful femoral stem 12/14 trunnion continues to be a noteworthy feature of the DJO hip portfolio.