Chapter 10: Knee Pathologies Flashcards
What joints make up the knee complex?
Tibiofemoral, tibiofibular, patellofemoral
List the four degrees of freedom of tibiofemoral joint .
(1) flexion + extension
(2) IR + ER
(3) Medial + Lateral Glide
(4) Anterior + Posterior Glide
Define arthrofibrosis.
The formation of scar tissue
The deep layer Medial Collateral Ligament arises from thickening of the ________ and attaches at the _______.
joint capsule : medial meniscus
The superficial layer of the Medial Collateral Ligament arises from a broad band just below the _______ tubercle and attaches deep to the _______ tendons.
adductor tubercle : pes anserine
Where does the Lateral Collateral Ligament arise from and insert to?
Arises from the lateral femoral epicondyle and inserts onto the proximal aspect of fibular head.
The main purpose of the MCL.
To protect knee from valgus force. Restricts external rotation to tibia and anterior translation of tibial when anterior cruibi
The main purpose of the LCL.
To protect knee from varus force when the knee is in range between full extension and 30 degrees of flexion
The MCL deep and superficial structures are tight when knee is in full _______.
Extension
List the cruciate ligaments of the knee.
Anterior cruciate ligament
Posterior cruciate ligament
Where does the Anterior Cruciate Ligament arise from and insert to?
Arises from the anteromedial intercondylar eminence of the tibia and insert on the medial wall of the lateral femoral condyle.
The anterior cruciate ligament serves as a static stabilizer against:
Anterior translation of the tibia on the femur
Internal translation of the tibia on the femur
External translation of the tibia on the femur
Hyperextension of the tibiofemoral joint
The anterior cruciate ligament is taut in full knee _______ and _______.
Extension (anterior bundle)
Flexion (posterior bundle)
