Knee Flashcards
The knee consists of these three articulations (joints)
- Tibiofemoral
- Patellofemoral
- Tibiofibular (not really associated with knee function, but serves as an attachment point for muscles that affect knee function)
When is the knee in “open packed” position?
30 degrees of flexion
When is the knee in closed packed position?
Full extension
Which condyle of the femur is the largest?
Medial
When the femur is positioned straight vertical, which condyle extends further distally?
Medial
The ___ condyle is slightly curved, which serves as it being the center of rotation
Medial
The ___ meniscus is shallow, while the ___ meniscus is deep
Medial, lateral
What is the normal range of torsion on the tibia?
15-20 degrees external torsion
“Knock knees” are known as a ____ deformity
Valgus
The greater the ___ angle the greater the valgus deformity
Q
Full active extension of the knee is ____ degrees, while full active flexion of the knee is ___ degrees
-3 degrees (hyperextension),
155 degrees
The knee joint has ___ rotation (it does not rotate around a central axis)
Eccentric (rotates around the medial condyle of the femur)
What muscle is responsible for “unlocking” the knee
Popliteus
Joint forces on the intrinsic knee are greater during ___(flexion/extension) activities
Flexion
