The Knee: Function and Injuries Flashcards
What kind of bone is the patella?
Sesamoid
The medial collateral ligament resists ……. forces?
Valgus forces
The lateral collateral ligament resists ………. forces?
Varus forces
The medial collateral ligament attaches to which meniscus?
Medial meniscus
The lateral collateral ligament attaches to which meniscus?
It is not connected to the lateral meniscus
How can you test for medial collateral ligament function?
MCL test - push knee towards midline
How can you test for lateral collateral ligament function?
LCL test - pull knee away from midline
The Anterior Cruciate Ligament prevents femur displacement in which direction?
Posterior femur displacement
The Posterior Cruciate Ligament prevents femur displacement in which direction?
Anterior femur displacement
Why is a hand placed on Hamstrings during a Lachman’s test?
Can feel whether or not hamstrings are tense - can compensate the broken ACL
Which is more common, anterior or posterior cruciate ligament tear?
Anterior cruciate ligament
What are the shapes of the Medial and Lateral Menisci?
Medial = C shaped Lateral = O shaped
Are the cruciate ligaments intra capsular or extra capsular? Are they intra synovial or extra synovial?
Intra capsular, extra synovial
What is the function of the Popliteus muscle with respect to the knee?
Unlocking the knees when walking, by laterally rotating the femur on the tibia when foot is in contact with ground
What is the innervation of the Popliteus muscle?
Tibial nerve
