THA Ceramic-Ceramic Coupling: The Evaluation of the Dislocation Rate with Bigger Heads
According to Charnley, the rationale to reduce the head diameter in THA is in decreasing the friction torque and the volumetric wear, but, employing a ceramic-ceramic coupling instead of a metal-polyethylene one, bigger diameters can be used without increasing in a considerable way neither the volumetric wear rate nor the friction torque.
KeywordsFemoral Head Acetabular Component Friction Torque Head Diameter Linear Wear
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