The effect of dynamic hip motion on the micromotion of press-fit acetabular cups in six degrees of freedom

The effect of dynamic hip motion on the micromotion of press-fit acetabular cups in six degrees of freedom

Highlights • Novel methodology to assess cup micromotion in six DoF under dynamic hip motion. • Clinically relevant levels of micromotion in all translations. • Increase in cup micromotion under dynamic hip motion compared to static flexion. • Comparable stability between Trident cup with HA coating...

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Veröffentlicht in:Medical engineering & physics 2016-08, Vol.38 (8), p.717-724
Hauptverfasser: Crosnier, Emilie A, Keogh, Patrick S, Miles, Anthony W
Format: Artikel
Sprache:eng
Schlagworte:
Acetabular cups
Acetabulum - physiology
Biomechanical study
Biomedical materials
Bone-Implant Interface
Cups
Degrees of freedom
Dynamics
Fixation
Hip Joint - physiology
Hip Prosthesis
Initial stability
Mathematical analysis
Motion
Movement
Press-fit fixation
Prosthesis Design
Radiology
Stability
Surgical implants
Total hip replacement
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Beschreibung
Zusammenfassung:Highlights • Novel methodology to assess cup micromotion in six DoF under dynamic hip motion. • Clinically relevant levels of micromotion in all translations. • Increase in cup micromotion under dynamic hip motion compared to static flexion. • Comparable stability between Trident cup with HA coating and Tritanium cup.
ISSN:1350-4533
1873-4030
DOI:10.1016/j.medengphy.2016.04.014