The next-generation femoral head made of BIOLOX®delta ceramics.

Large diameter femoral head prostheses (diameter D ≥ 32mm) are being used in hip arthroplasty to mitigate the risk of hip dislocation, which is a major cause of failure. The reported incidences of hip dislocations range from 0.5 % to 5.8 % for primary surgeries and from 4.8 % to 13 % for revision surgeries. 1 Several large series studies have shown that risk of hip dislocation decreases with increasing femoral head diameter. 2

Source: OTG Laboratory; cadaver study

Source: OTG Laboratory; cadaver study

Worth knowing:

BIOLOX®delta material features

  • Safe in terms of metal ion release
  • No known risk of allergy
  • Excellent biological behavior
  • Significantly lower fretting corrosion
  • Excellent wettability
  • Resistant to third-body wear
  • Highly scratch resistant articulation surface

The ball head BIOLOX®CONTOURA is under development and is not approved by any authorities.
*References available on file at CeramTec on request.


  1. Burroughs BR, Hallstrom B, Golladay GJ , Hoeffel D, Harris WH. Range of motion and stability in total hip arthroplasty with 28-, 32-, 38-, and 44-mm femoral head sizes. J Arthroplasty, 2005, Jan;20(1):11/9
  2. Rodriguez JA, Rathod PA. Large diameter heads: is bigger always better? J Bone Joint Surg. Br. 2012 Nov;94(11 Suppl A):52-4

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