Ceramic-on-ceramic bearing decreases the cumulative long-term risk of dislocation.

  title={Ceramic-on-ceramic bearing decreases the cumulative long-term risk of dislocation.},
  author={Philippe Hernigou and Yasuhiro Homma and Olivier Pidet and Isaac Guissou and Jacques Hernigou},
  journal={Clinical orthopaedics and related research},
  volume={471 12},
BACKGROUND It is unclear whether late THA dislocations are related to mechanical impingement or to a biological mechanism that decreases the stability provided by the capsule (eg, inflammation secondary to osteolysis). It is also unknown if alumina-on-alumina bearing couples decrease the risk of late dislocation as a result of the absence of wear and osteolysis. QUESTION/PURPOSES We asked (1) whether the cumulative number of dislocations differed with alumina-on-alumina (AL/AL) or alumina-on… CONTINUE READING
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