U-Motion II™

One-for-All Coupling
U-Motion II Acetabular System allows orthopaedic surgeons to select an optimal couple for demanded patient populations without compromise.

Various bearing couples 

Optimized Head-to-Cup Ratio, Enhanced Stability
Larger head combined with 12/14 UTF taper stem system, allowing satisfied flexion range and eliminating impingement.

 Wider range of motion  

Simple Setting of Liner-Cup Assembly


New Technology of E-XPETM Liner 
E-XPETM liner provides enhanced wear resistance without compromising on oxidative stability and mechanical properties.1-3

High Screw Angulation
Improving surgical flexibility without compromising cup fixation.

Proven Solutions for Long-Term Stability

Advanced Acetabular System
Small cup of O.D. 56 mm accommodated with largest bearing as 40 mm diameter provides enhanced joint stability, increased ROM and lowered risk of dislocation.


  1. Report number: UOC-RD-TR-15052
  2. Report number: UOC-RD-TR-10012
  3. Report number: UOC-RD-TR-15014
  4. Hsu JT et al., Effects of screw eccentricity on the initial stability of the acetabular cup. Int Orthop. 2010; 31: 451-55.
  5. Kurashina K et al., Ectopic osteogenesis with biphasic ceramics of hydroxyapatite and tricalcium phosphate in rabbits. Biomaterials. 2002; 23: 407–412.
  6. Rahbek O et al., Sealing effect of hydroxyapatite coating on peri-implant migration of particles. An experimental study in dogs. J Bone Joint Surg. 2001; 83B: 441-447.
  7. Rahbek O et al., Superior sealing effect of hydroxyapatite in porous-coated implants. Acta Orthop. 2005; 76: 375-385.
  8. Long M and Rack HJ., Titanium alloys in total joint replacement—a materials science perspective. Biomaterials. 1998; 19: 1621–1639.
  9. Svehla M et al., The effect of substrate roughness and hydroxyapatite coating thickness on implant shear strength. J Arthroplasty. 2002; 17: 304-311.
Surgical Protocol  Brochure