Joints & Ligaments of the Knee Flashcards
A triangle-shaped sesamoid bone in the tendon of the rectus femoris muscle and is part of the largest joint in the body.
Patella
Which view of the patella shows the base as a flat superior edge and the apex as a more pointed inferior edge?
Anterior View
Which view of the patella shows a vertical ridge as well as the medial and lateral articular facets?
Posterior View
What do the medial and lateral articular facets of the patella articulate with?
Patellar Surface of the Femur
Medial & Lateral Condyles of the Femur
What are the 3 articulations of the knee joint?
1) Lateral condyle of the tibia & lateral femoral condyle
2) Medial condyle of the tibia & medial femoral condyle
3) Patella & femur
What are the 4 available movements at the knee?
1) Flexion
2) Extension
3) Limited Internal Rotation
4) Limited External Rotation
Rotation only occurs when the knee is in a ______ position.
Flexed
A joint where the medial and lateral condyles of the tibia articulate with the medial and lateral femoral condyles.
Tibiofemoral Joint
What type of joint is the tibiofemoral joint?
Modified Synovial Hinge Joint
A joint where the medial and lateral facets of the patella articulate with the patellar surface of the femur.
Patellofemoral Joint
What type of joint is the patellofemoral joint?
Synovial Plane Joint
The patella moves __________ during flexion and _______________ during extension.
Inferiorly
Superolaterally
The _______ femoral condyle projects farther anteriorly than the ______ femoral condyle, which prevents the patella from tracking too far _________.
Lateral
Medial
Laterally
T/F - Majority of patellar dislocations occur on the medial side.
False - Majority of patellar dislocations occur on the LATERAL side.
Lateral deviation of the distal bone(s) of a joint.
Valgus
Medial deviation of the distal bones of a joint.
Varus
When the knee is fixed and the distal end of the tibia has deviated laterally.
Valgus Deviation (aka. Knock-Knee)
When the knee is fixed and the distal end of the tibia has deviated medially.
Varus Deviation (aka. Bow-Leg)
What are the 4 types of ligaments in the knee?
1) Collaterals
2) Cruciates
3) Coronary
4) Transverse
What are the 2 collateral ligaments of the knee?
1) Lateral Collateral Ligament
2) Medial Collateral Ligament
A pencil-like ligament of the knee that attaches to the lateral epicondyle of the femur and the fibular head.
Lateral Collateral Ligament (aka. Fibular Collateral Ligament)
What does the LCL of the knee restrict?
Varus Deviation
A ligament of the knee that attaches to the medial epicondyle of the femur and the medial condyle of the tibia. It is a flat thickening of the joint capsule and the deep fibres of the ligament are attached to the medial meniscus.
Medial Collateral Ligament (aka. Tibial Collateral Ligament)
What does the MCL of the knee restrict?
Valgus Deviation
What are the 2 cruciate ligaments of the knee?
1) Anterior Cruciate Ligament
2) Posterior Cruciate Ligament
A ligament of the knee that attaches to the anterior intercondylar area of the tibia and the posteromedial side of the lateral femoral condyle. It is slack when the knee is flexed and taut when the knee is in full extension.
Anterior Cruciate Ligament
What does the ACL of the knee restrict?
1) Anterior Translation of the Tibia on the Femur
2) Posterior Translation of the Femur on the Tibia
3) Knee Extension
A ligament of the knee that attaches to the posterior intercondylar area of the tibia and the anterolateral side of the medial femoral condyle. It is slack when the knee is extended and taut when the knee is in full flexion.
Posterior Cruciate Ligament
What does the PCL of the knee restrict?
1) Posterior Translation of the Tibia on the Femur
2) Anterior Translation of the Femur on the Tibia
3) Knee Flexion
Ligaments of the knee that attach the medial and lateral menisci to their respective tibial plateaus.
Medial & Lateral Coronary Ligaments
C-shaped plates of fibrocartilage attached to the articular surfaces of the tibia and the centre is thinner than the outer edges. They are slightly mobile and help in spreading of synovial fluid during knee movement.
Menisci of the Knee
What do menisci of the knee function as?
1) Shock Absorbers
2) Deepen the Articulation to Provide Stability
The medial meniscus is attached to the ______ __________ ligament.
Medial Collateral
A ligament of the knee that connects the medial and lateral menisci anteriorly.
Transverse Ligament