Rainbow’s Enduser.engineering.uiowa.edu/~bme_158/Lecture/drpIowaTotalHip.pdf · Rainbow’s End....
Transcript of Rainbow’s Enduser.engineering.uiowa.edu/~bme_158/Lecture/drpIowaTotalHip.pdf · Rainbow’s End....
Rainbow’s End
The Iowa Total Hip
Radiolucency
Femoral Component
Femoral Head & Neck
TiBac Cup
TiBac Cup
Design Parameters
Effects of Stem Length on Peak Stress
Finite Element Model
of Cemented Femoral
Component
FEA of Femoral Stem
Effects of Valgus Stem-Neck Angle
Critical Stresses for various Cross-Sections
Alternative Stem Cross-Sections
Cross-Sectional Cement Stresses
Interaction of Cup Thickness and Metal Backing
PMMA Stress
Interaction of Cup Thickness and Metal Backing
Trabecular Bone Stress
Interaction of Cup Thickness and Metal Backing
Subchondral Bone Stress
Medial Cement
Lateral Cement
Cement Stress vs. Stem Length
Medial StemLateral Stem
Stem Stress vs. Stem Length
Stem Length
Medial Cement
Lateral Cement
Stem Thickness vs. Cement Stress
Medial Stem
Lateral Stem
Stem Stress vs. Stem Thickness
Cross-Sectional Size
Endurance Limits for Implant Materials
Effects of Femoral Component Modulus
Medial Cement
Lateral CementStem Elastic Modulus
Cement Stress vs. Stem Modulus
Stem Elastic Modulus
Medial Stem
Lateral Stem
Stem Stress vs. Stem Modulus
Elastic Modulus of the Stem
Collarless Collar/Bone Collar/Cement
Effect of Collar Contact
Stresses due to Collar Contact Variants
Range of Sizes
Specialty Femoral Components