Knee Biomechanics 2 - PFJ (10/17b) [Examination/Intervention] Flashcards
1
Q
Patellar anatomy
A
Base (closer to femur)
Apex (closer to tibia)
3 Facets - odd, medial, lateral
Vertical ridge
2
Q
Patellar static stability
A
Knee wants to stay relatively balanced in the middle
More common for patella to be subluxed in the lateral direction
3
Q
Q Angle
A
Angle from ASIS (anterior-superior iliac spine) to midline patella to tibial tubercle
Normal is 13-15 deg
Females will have larger Q angle due to larger ASIS
4
Q
The resultant vector from Q angle is one of the explanations of
A
the kneecap going more laterally during injury
5
Q
Normal Alignment
A
About frontal plane alignment of tibia and femur, not about Q angle
Males have greater angle, closer to varus
Women have wider pelvis, closer to valgus
