PTAP 1400 EXAM 3 WITH 100%
CORRECT ANSWERS
What is hip hiking? - Answer-the person is hiking their hip to clear the distance and not
trip on the floor.
Why do people usually need to hip hike? - Answer-people with weak knee flexion. if the
person has a brace that keeps them from bending the knee they will need to hike the
hip to clear the floor.
What is hip drop? - Answer-a slight drop of the contralateral (same side) side of the
pelvis
What is common with individuals with hip drop? - Answer-they will have weak hip
abductors who are unable to hold pelvis level during the stance phase gait.
What is the primary motion of the knee joint? - Answer-flexion & extension
What is the knee joints primary plane of motion - Answer-sagital plane & frontal axis
How many degrees of freedom is the knee joint? - Answer-2 degrees of freedom. flexion
& extension- sagital plane internal & external rotation- transverse plane
What is the main knee joint? - Answer-tibiofemoral joint
-hinge joint
What are the 2 joints that the knee consists of? - Answer-patellofemoral joint &
tibiofemoral joint
what are the bones of the knee? - Answer-femur
tibia
patella
what is the plumb line? - Answer-line of gravity
what is genu varum - Answer-bowlegged
what is genuflects valgum - Answer-knock knees
, what is genuflects recurvatum - Answer-hyperextended
what is the degrees for a person who has genu valgum - Answer-less than 180 degrees
what is the degrees for a person who has genu varum - Answer-more than 180 degrees
what is the job of the MCL & LCL - Answer-not to allow too much genu valgum or genu
varum
what is the anterior cruciate ligament aka ACL - Answer-resists anterior, lateral & medial
tibial movement. stabilizes the knee
where does the ACL connect in the knee? - Answer-posteriorly from the femur to
anteriorly to the tibia
what is the posterior cruciate ligament aka PCL - Answer-resists posterior, lateral, and
medial tibial movement.
stabilizes knee flexion
what does the anterior drawer test for - Answer-ACL tear. to test you have patient
supine, knee bent at 90 degrees and pull the knee forward. if it moves 8mm it can be
torn.
what does the posterior drawer test for - Answer-PCL tear. have patient supine, knee
bent at 90 degrees and push the knee back.
lackmans test - Answer-better than the anterior test
takes away opposition of hamstrings
knee flexed at 15-30 degrees
lateral collateral ligament - Answer-LCL, resists varus (bow legged) stress at the knees
Medial Collateral Ligament (MCL) - Answer-resists valgus (knock knees) stresses at the
knee
Where is the most blood supply during a meniscus tear - Answer-red zone
heal faster
where is the lowest blood supply during a meniscus tear - Answer-white zone
needs surgery
extensor leg - Answer-lacking full knee extension.
what is the reason for extensor lag - Answer-due to muscle weakness, pain & knee
swelling, edema, effusion. Bigger risk for someone to falling because they can't get the
full knee extension when attempting to walk
CORRECT ANSWERS
What is hip hiking? - Answer-the person is hiking their hip to clear the distance and not
trip on the floor.
Why do people usually need to hip hike? - Answer-people with weak knee flexion. if the
person has a brace that keeps them from bending the knee they will need to hike the
hip to clear the floor.
What is hip drop? - Answer-a slight drop of the contralateral (same side) side of the
pelvis
What is common with individuals with hip drop? - Answer-they will have weak hip
abductors who are unable to hold pelvis level during the stance phase gait.
What is the primary motion of the knee joint? - Answer-flexion & extension
What is the knee joints primary plane of motion - Answer-sagital plane & frontal axis
How many degrees of freedom is the knee joint? - Answer-2 degrees of freedom. flexion
& extension- sagital plane internal & external rotation- transverse plane
What is the main knee joint? - Answer-tibiofemoral joint
-hinge joint
What are the 2 joints that the knee consists of? - Answer-patellofemoral joint &
tibiofemoral joint
what are the bones of the knee? - Answer-femur
tibia
patella
what is the plumb line? - Answer-line of gravity
what is genu varum - Answer-bowlegged
what is genuflects valgum - Answer-knock knees
, what is genuflects recurvatum - Answer-hyperextended
what is the degrees for a person who has genu valgum - Answer-less than 180 degrees
what is the degrees for a person who has genu varum - Answer-more than 180 degrees
what is the job of the MCL & LCL - Answer-not to allow too much genu valgum or genu
varum
what is the anterior cruciate ligament aka ACL - Answer-resists anterior, lateral & medial
tibial movement. stabilizes the knee
where does the ACL connect in the knee? - Answer-posteriorly from the femur to
anteriorly to the tibia
what is the posterior cruciate ligament aka PCL - Answer-resists posterior, lateral, and
medial tibial movement.
stabilizes knee flexion
what does the anterior drawer test for - Answer-ACL tear. to test you have patient
supine, knee bent at 90 degrees and pull the knee forward. if it moves 8mm it can be
torn.
what does the posterior drawer test for - Answer-PCL tear. have patient supine, knee
bent at 90 degrees and push the knee back.
lackmans test - Answer-better than the anterior test
takes away opposition of hamstrings
knee flexed at 15-30 degrees
lateral collateral ligament - Answer-LCL, resists varus (bow legged) stress at the knees
Medial Collateral Ligament (MCL) - Answer-resists valgus (knock knees) stresses at the
knee
Where is the most blood supply during a meniscus tear - Answer-red zone
heal faster
where is the lowest blood supply during a meniscus tear - Answer-white zone
needs surgery
extensor leg - Answer-lacking full knee extension.
what is the reason for extensor lag - Answer-due to muscle weakness, pain & knee
swelling, edema, effusion. Bigger risk for someone to falling because they can't get the
full knee extension when attempting to walk
