Tibiofemoral Ligaments
The 5 ligaments of the knee
What is LCL, MCL, PCL, ACL, ITB
Rolling and gliding occur anterior (tibia on femur extension / OKC)
What is concave on convex
Knee extensors (4)
What is Rectus Femoris, Vastus Lateralis, Vastus Medialis, Vastus Intermedius
Semi-circular (C-shaped)
What is medial meniscus
Knee positioned laterally with distal portion medial (Bow legged).
What is genu varum
Injured in hyperextension
What is PCL
Motion (of tibia) occurs during extension of the knee
What is tibial external/lateral rotation
Unlocks the knee for flexion
What is popliteus muscle
Nourishes central region of meniscus
What is synovial fluid
Patella riding/positioned high
What is Patella Alta
This ligament performs knee extension when extended and knee flexion when flexed & has a critical angle of 30 degrees of knee flexion
What ITB
ligamentous injuries
patella tracking/alignment
bursitis
OA —> total knee replacement
What is knee pathology
This muscle attaches to the ischial tuberosity and pes anserinus
What is Semitendinosus
Collagen fiber type that makes up the outer meniscus
What is type I
Fluid-filled sacs that limit frictional forces between surfaces
What is bursa
This stress at the knee is caused when a football player is tackled from the right side causing his right knee to cave in.
What is valgus stress.
Concept of slight external rotation during knee extension.
What is Screw-home mechanism
Posterior knee muscles that are ”single joint” muscles
What is short head of biceps femoris and popliteus
Pulls meniscus backward during flexion.
What is semimembranosus (medial) and popliteus (lateral).
Measurement from ASIS to mid-patella to tibial tuberosity
What is Q-angle
Restrains anterior tibia translation/displacement (OKC) and posterior femur translation/displacement (CKC)
What is ACL
Max knee torque occurs at this position of a barbell squat
What is bottom position (full flexion)
Meniscus functions
What is increases congruency, reduces friction, improves stability and absorbs shock