Reduction of the development of stripe wear on inserts for hip joint prostheses by modifying the geometry of the transition between the face and spherical recess

Reduction of the development of stripe wear on inserts for hip joint prostheses by modifying the geometry of the transition between the face and spherical recess

EKA socket insert of a hip joint prosthesis having a spherical-indentation-shaped recess in which a spherical head of a femur is mounted. The spherical indentation has a run-in zone which ends on one side with a circular arc tangentially in an end face of the socket insert and extends on another sid...

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Hauptverfasser: Preuss, Roman, Pandorf, Thomas
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creator Preuss, Roman
Pandorf, Thomas
description EKA socket insert of a hip joint prosthesis having a spherical-indentation-shaped recess in which a spherical head of a femur is mounted. The spherical indentation has a run-in zone which ends on one side with a circular arc tangentially in an end face of the socket insert and extends on another side as far as the run-in edge. Between a start of the circular arc with a radius of the length (R) and the run-in edge of the spherical indentation with the radius of the length (R) the run-in zone forms a curve, the function of which is continuously differentiated twice at every point.
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The spherical indentation has a run-in zone which ends on one side with a circular arc tangentially in an end face of the socket insert and extends on another side as far as the run-in edge. Between a start of the circular arc with a radius of the length (R) and the run-in edge of the spherical indentation with the radius of the length (R) the run-in zone forms a curve, the function of which is continuously differentiated twice at every point.</abstract><oa>free_for_read</oa></addata></record>
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title Reduction of the development of stripe wear on inserts for hip joint prostheses by modifying the geometry of the transition between the face and spherical recess
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