Patella Flashcards
1
Q
How many facets has the posterior aspect of the patella
A
seven facets
2
Q
medial facet is ____ and slightly _____
A
- smaller
- convex
3
Q
the lateral facet, which consists of approximately ___ of the patella, has both a _____ and a ______
A
- 2/3
- sagittal convexity
- coronal concavity
4
Q
How many variants of the patella have been described
A
6 (Wiberg and Baumgartl’s Patella Types)
5
Q
Patella has the thickest hyaline cartilage in the body, which may measure up to ____ in thickness
A
- 6.5 mm
6
Q
which part of the patella engages the trochlea at 10 to 20° of flexion
A
- distal pole
7
Q
most extensive contact (patella / femur) is made at approximately _____
A
- 45° (area is an ellipse in continuity across the central portion of the medial and lateral facets)
8
Q
The main biomechanical function of the patella is to ________________
A
increase the moment arm of the quadriceps mechanism
