Ceramic on Ceramic Bearings Used with Proximal Modular Stems in THA
Introduction: Osteolysis generated by wear debris remains a problem in total hip arthroplasty. Alternate bearings surfaces are sought in an attempt to reduce debris particles and prolong prosthetic wear. Ceramic on ceramic surfaces have a long clinical history but have encountered a number of problems due to design and material properties. Impingement with malposition of the components, ceramic chipping, and ceramic fractures with malposition of the acetabular component have been problems.
Material: This paper will review 185 ceramic on ceramic bearings used with proximal modular stem designs. Two different stem designs and four different cup designs all utilizing ceramic heads and ceramic inserts manufactured by CeramTec were used.
Conclusion: The recent development of proximal femoral modular stem designs provides better surgical exposure and improved orientation of the prosthetic components. This will reduce the complications due to ceramic implants.
KeywordsAcetabular Component Modular Design Ceramic Head Ceramic Liner Acetabular Liner
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