The MCL limits ____________ forces
valgus
MOI for a PCL injury...
Falling on a flexed knee
Anterior force to the tibia
An inflammatory condition of the patellar tendon at the tibial tuberosity commonly seen in adolescents during growth spurts is referred to as....
Osgood-Schlatter Disease
Repeated trauma to the knee causing cartilage to become "stuck" within the knee joint is...
Causes locking and popping, sometimes instability
Loose bodies w/in the joint
Primary restraint against varus forces
Lateral collateral ligament
The vastus medialis acts to ____________ the knee
extend
Danny is attacked by a javelina. The javelina hit Danny real hard on the lateral aspect of his L knee, which caused it to "collapse in". He has swelling and pain over the medial aspect of his knee and sensations of instability. What could be wrong with Dan this time?
MCL injury
MCL sprain
___________________ can result from lateral deviation of the patella within the patellar groove as it tracks
Patellofemoral stress syndrome
Irritation of the fluid filled sacks that protect the knee from trauma and decrease friction of surrounding structures is referred to as...
Structure becomes inflamed
Bursitis
A cause of maltracking of the patella
Genu valgum
Foot pronation
Femoral anteversion
Patella alta
The patellar tendon originates at the inferior pole of the patella and inserts in to the _______________
Tibial tuberosity of the tibia
_____________ occur during twisting motions with the knee flexed. Often the athlete will feel popping, clicking, and locking of the joint and tenderness of the joint line. What injury is described?
Meniscus injury
Meniscus tear
A softening of the articular cartilage on the posterior aspect of the patella is referred to as...
chondromalacia
Chuy is playing soccer and makes cut for the ball. During the cutting maneuver, Chuy felt an extreme sharp pain and a sensation that his patella had partially moved laterally out of the patellar groove for a period of time and then returned. What type of injury has Chuy possibly sustained
Patellar subluxation
Risk factor for chondromalacia, PFSS, or subluxations...
weak VMO
Training intensity increased too soon
excessive pronation of foot
improper footwear or running surface
being female
Q angle
The meniscus are important for...
Shock absorption
Weight distribution
Accepting the condyles of the femur
The unhappy triad includes which 3 structures...
Medial meniscus
ACL
MCL
Recurrent rubbing of the iliotibial band on the lateral condyle can be caused by...
Weak and/or tight hip abductors/ITB
Duration/mileage of training
What are three MOI's for an ACL injury we discussed in class?
cutting/rotation
hyperextension
straight knee landing
What special tests are used to test the integrity of the ACL?
Lachman's
Anterior Drawer
According to the screw-home mechanism, during closed chain movement, the femur _________________ on the tibia to "lock" and _________________ to "unlock"
Internally rotates
Externally rotates
Jorge is performing box jumps to fatigue when his leg gives out on him while landing. An audible pop is heard upon Jorge's land and he is in extreme pain. Within the next hour Jorge's knee begins to swell extensively and his workout buddy, Alexis Moreno, notes that Jorge had be landing with locked knees. What is a possible diagnosis?
ACL injury
ACL tear
Meniscus injury 1/2 pt.
___________ is caused by high deceleration and eccentric forces of the quadriceps on the knee during landing
Contributing factor to ACL tears?
Hamstring to Quad ratio
Hormones (Estrogen)
How is the Lachman's special test performed?
What is it testing?
Why is it superior to the Anterior Drawer when assessing?
30 degres knee angle w/ ant translation at the tibial angle
ACL
relaxes the hamstring more