Our Modular Dual Mobility with X3 precisely engineered polyethylene is a well-estabilished modular Mobile Bearing Hip System. MDM is designed to help prevent dislocation and assist your operative goals of stability, longevity and advanced fixation for primary or revision total hip arthroplasty cases. MDM X3 is compatible with Trident II, Trident, and Tritanium acetabular implants, offering you a choice of fixation surfaces and screwhole configurations.