PCL

Question 1

Origin of PCL

Answer 1

originates from the posterior part of the lateral surface of the medial femoral condyle in the intercondylar notch

Question 2

PCL: average lenght

Answer 2

38 mm x 13 mm

Question 3

tibial insertion

Answer 3

in a depression posterior to the intra-articular upper surface of the tibia.

Question 4

signal e form in MRI

Answer 4

• low signal

- hockey stick shape

Question 5

Which two ligaments can be identified near the PCL

Answer 5

ligaments of Humphry and Wrisberg / anterior and posterior of the PCL

Question 6

Why PCL is considered to be the primary stabilizer of the knee

Answer 6

because it is located close to the central axis of rotation of the joint and is almost twice as strong as the ACL

Question 7

In what position of the knee reaches maximum tension

Answer 7

It is maximally taut at full flexion and becomes tighter with internal rotation

Question 8

What are the other two ligaments that work in concert with PCL to stabilize the knee

Answer 8

• LCL

- popliteus tendon

Question 9

more frequent mechanism of PCL injury

Answer 9

• hyperextension

- anterior blows to a flexed knee

Question 10

What characterizes a chronic lesion of PCL

Answer 10

• Rarely symptomatic instability
• CHRONIC PAIN
• Degenerative changes medial compartment (90% of cases have been associated with chronic PCL)