Mechanical Considerations Flashcards
1
Q
Is bone better at withstanding compression with the grain or against it - in other words from the side or the top?
A
The top! - with the grain
2
Q
What is tensile strength?
A
1/2 of compression
compares to tendons and ligaments
3
Q
What is shear strength?
A
1/4 of compression
most fractures happen this way
4
Q
What are the 3 functions of sesamoid bones? (the patella in particular)
A
eliminates tendon shear’
redirects lines of forces
increases torque
5
Q
A
