Renovis MAX™ Highly Crosslinked Polyethylene

Acetabular Inserts

Hip Product Group

Renovis MAX Highly Crosslinked Polyethylene† for hip bearings has excellent wear resistance while preserving strength through an innovative annealing process that does not require melting.

 

Highly Crosslinked for Low Wear

In hip simulator testing, Renovis E-MAX  demonstrated 95% less wear than conventional polyethylene. [1]

Mechanically Annealed

During radiation crosslinking of polyethylene, free radicals are introduced.  To remove the free radicals, Renovis uses a mechanical annealing process in which the material is warmed and then compressed.  This mobilizes the molecular strands of polyethylene, allowing the free radicals to combine into additional crosslinks.

Just like melt-annealing, Renovis mechanical annealing process eliminates free radicals near the detection level.[2,3]


  1. University of Nebraska Medical Center. Characterization of CIMA and E-CIMA UHMWPE as a bearing against CoCr femoral hip components: A hip simulation study. Test report dated July 15, 2011. On file with Renovis Surgical.
  2. Materials Characterization testing. Test report TP0322. On file with Renovis Surgical.
  3. Bhattacharyya S, Matrisciano L, Spiegelberg S, Harris W, Muratoglu O. Mechanical elimination of residual free radicals in an irradiated UHMWPE rod: advantages over melting. 50th annual meeting of the orthopaedic research society. 2004:1474.