Joints - Knee joint Flashcards
The knee joint is the _______ and most _______ joint.
Largest and most complex
The knee joint primarily acts as a ____ joint. Meaning it is _______.
Hinge joint
uniaxial
Two _______ _____ occur within the joint cavity.
Fibrocartilage menisci.
The condyles of the _____ roll along the almost flat condyles of the _____.
femur
tibia
The knee joints performs what types of movements?
Flexion and extension
______ tendon runs through the ______ and inserts on the _____ ________.
Quadriceps
Patella
tibial tuberosity
In the knee joint, ______ prevents friction of the ______ on the _______ tendon.
Bursa
tibia
quadriceps
Two ________ ligaments called ______ ligaments are found within the knee capsule.
Cruciate means to _____.
Two intracapsular ligaments called cruciate ligaments are found within the knee capsule.
Cruciate means to cross.
The lateral ______ are on either side of the _______ ligaments.
Menisci
Cruciate
_______ floats into the quadriceps tendon.
Patella
The major ligaments of the knee joint become _____ when the knee is extended to prevent _________.
taut
hyperextension
What are the major ligaments of the knee joint?
Extracapsular ligaments.
Extracapsular ligaments, include what? What do they prevent?
Fibular collateral ligament (lateral)
Tibial collateral ligament (MCL) (medial)
Prevent medial/lateral movement of the leg.
The MCL is located on the ______.
tibia
The intracapsular ligaments are called the ________ ligaments.
They cross each other like an ___.
Each cruciate ligament runs from the _______ ____ to the _____ _____.
cruciate
X
proximal tibia
distal femur
The ACL or, ______ _____ _____ prevents ______ sliding of the _______.
Anterior cruciate ligament prevents anterior sliding of the tibia
The posterior cruciate ligament prevents _______ sliding of the _____ or _______ displacement of the ______.
forward sliding of the femur or posterior sliding of the tibia
Describe the stabilizing function of the cruciate ligaments?
Prevent anterior/posterior movement of the tibia with respect to the femur when not straight.
When straight, ligaments get tight to prevent hyperextension.
Lateral blows to the knee can tear what?
Tibial collateral and medial meniscus.
ACL
i.e. lateral blows affect the medial side
Recently, we found the ______-_____ ligament. Old surgeries would often break this.
Anterior-lateral ligament
How is an ACL fixed?
Take tendon from hamstring, thread it through to make new ACL.
Describe osteoarthritis.
Cartilage destroyed, bone on bone grinding, causes bone spurs, pieces of bone broken off with friction.
Why is the butterfly stance problematic?
Acetabulum hit by the head of the femur, get bone spurs.
Also slams the medial part of the knee joint.
