JR 101 MAIN EXAMS SET UPDATED EXAM QUESTIONS
AND SOLUTIONS RATED A+
✔✔The anterior cruciate ligament is responsible for: - ✔✔restraint to anterior tibial
translation with respect to femur
✔✔A tough band of fibrous connective tissue that usually connects muscle to bone and
is capable of withstanding tension is known as: - ✔✔tendon
✔✔T/F: the patella serves as a fulcrum for the quadriceps muscles and provides a
mechanical advantage to help the quadriceps function more efficiently. - ✔✔true
✔✔When referring to the bone anatomy of the knee, how many bones compromise the
knee? - ✔✔four
✔✔Avascular necrosis means: - ✔✔death of bone related to lack of bone flow
✔✔The main function of cortical (compact) bone is to provide _________________. -
✔✔strength
✔✔The hamstring muscle group includes: - ✔✔biceps femoris, semitendinosus,
semimembranosus
✔✔T/F: the primary function of the hamstring muscle group is to flex the knee. - ✔✔true
✔✔If you are standing, and take your index finger, and slide it down your thigh until it
contacts the patella, the portion of the patella that you first contact is the: - ✔✔base
✔✔Bilateral means: - ✔✔occurring on both sides of the body
✔✔if a surgeon commented that a particular femoral condyle was "hypertrophic", the
condyle has: - ✔✔increased in size
✔✔A surgeon is examining an x-ray image that includes a patient's left and right knee
joints. He/she points out a possible tumor on distal medial femoral condyle on the right
knee. He/she comments that there seems to be no pathology on the same location on
the "contralateral" side. The "contralateral" side is: - ✔✔the left (or, opposite) knee
✔✔This soft type of bone exists in the epiphyseal/metaphyseal regions of long bones: -
✔✔cancellous
✔✔Arthritis means: - ✔✔inflammation of a joint
, ✔✔T/F: The two points of attachment for the medial collateral ligament are the distal
medial femoral condyle and the proximal fibular head: - ✔✔false
✔✔The LCL originates at the _________________ and inserts on the
_________________. - ✔✔lateral femoral condyle; fibular head
✔✔The single radius design of the Triathlon allows for ____________ required by the
quadriceps to extend the knee joint. - ✔✔less force
✔✔The "surgical" epicondylar axis is an imaginary line that connects: - ✔✔the medial
epicondylar sulcus with the prominence of the lateral epicondyle
✔✔T/F: on triathlon primary CR/PS femoral components, the anterior dimension (from
the lugs up... in the sagittal plane) increases less than or equal to 3.0mm from size #1
thru (and including) size #7. - ✔✔true
✔✔T/F: the anatomic axes in the lower extremity are represented by two mutually
exclusive lines. - ✔✔true
✔✔Triathlon's full periphery locking rim, locking wire, and anti-rotation island have
demonstrated less ________ than other designs. - ✔✔micromotion
✔✔T/F: the triathlon tibial augments are size-specific and come in left medial/right
lateral or right medial/left lateral configurations and can only be used with the universal
base plate. - ✔✔true
✔✔T/F: the normal human knee (not operated on) has a medial pivot. - ✔✔true
✔✔Whitesides line is also known as - ✔✔the trochlear A/P axis
✔✔Whiteside's line is: - ✔✔perpendicular to the surgical transepicondylar axis
✔✔The mechanical axis of the lower extremity is determined by drawing a straight line
from: - ✔✔the center of the femoral head to the center of the ankle joint
✔✔T/F: since the knee joint requires little assistance from the muscles as it moves
through the screw home arc of motion, the resultant motion is describes as "active"
motion. - ✔✔false
✔✔T/F: the only base plate with which Triathlon TS insert can be used is the cemented
universal base plate. - ✔✔true
AND SOLUTIONS RATED A+
✔✔The anterior cruciate ligament is responsible for: - ✔✔restraint to anterior tibial
translation with respect to femur
✔✔A tough band of fibrous connective tissue that usually connects muscle to bone and
is capable of withstanding tension is known as: - ✔✔tendon
✔✔T/F: the patella serves as a fulcrum for the quadriceps muscles and provides a
mechanical advantage to help the quadriceps function more efficiently. - ✔✔true
✔✔When referring to the bone anatomy of the knee, how many bones compromise the
knee? - ✔✔four
✔✔Avascular necrosis means: - ✔✔death of bone related to lack of bone flow
✔✔The main function of cortical (compact) bone is to provide _________________. -
✔✔strength
✔✔The hamstring muscle group includes: - ✔✔biceps femoris, semitendinosus,
semimembranosus
✔✔T/F: the primary function of the hamstring muscle group is to flex the knee. - ✔✔true
✔✔If you are standing, and take your index finger, and slide it down your thigh until it
contacts the patella, the portion of the patella that you first contact is the: - ✔✔base
✔✔Bilateral means: - ✔✔occurring on both sides of the body
✔✔if a surgeon commented that a particular femoral condyle was "hypertrophic", the
condyle has: - ✔✔increased in size
✔✔A surgeon is examining an x-ray image that includes a patient's left and right knee
joints. He/she points out a possible tumor on distal medial femoral condyle on the right
knee. He/she comments that there seems to be no pathology on the same location on
the "contralateral" side. The "contralateral" side is: - ✔✔the left (or, opposite) knee
✔✔This soft type of bone exists in the epiphyseal/metaphyseal regions of long bones: -
✔✔cancellous
✔✔Arthritis means: - ✔✔inflammation of a joint
, ✔✔T/F: The two points of attachment for the medial collateral ligament are the distal
medial femoral condyle and the proximal fibular head: - ✔✔false
✔✔The LCL originates at the _________________ and inserts on the
_________________. - ✔✔lateral femoral condyle; fibular head
✔✔The single radius design of the Triathlon allows for ____________ required by the
quadriceps to extend the knee joint. - ✔✔less force
✔✔The "surgical" epicondylar axis is an imaginary line that connects: - ✔✔the medial
epicondylar sulcus with the prominence of the lateral epicondyle
✔✔T/F: on triathlon primary CR/PS femoral components, the anterior dimension (from
the lugs up... in the sagittal plane) increases less than or equal to 3.0mm from size #1
thru (and including) size #7. - ✔✔true
✔✔T/F: the anatomic axes in the lower extremity are represented by two mutually
exclusive lines. - ✔✔true
✔✔Triathlon's full periphery locking rim, locking wire, and anti-rotation island have
demonstrated less ________ than other designs. - ✔✔micromotion
✔✔T/F: the triathlon tibial augments are size-specific and come in left medial/right
lateral or right medial/left lateral configurations and can only be used with the universal
base plate. - ✔✔true
✔✔T/F: the normal human knee (not operated on) has a medial pivot. - ✔✔true
✔✔Whitesides line is also known as - ✔✔the trochlear A/P axis
✔✔Whiteside's line is: - ✔✔perpendicular to the surgical transepicondylar axis
✔✔The mechanical axis of the lower extremity is determined by drawing a straight line
from: - ✔✔the center of the femoral head to the center of the ankle joint
✔✔T/F: since the knee joint requires little assistance from the muscles as it moves
through the screw home arc of motion, the resultant motion is describes as "active"
motion. - ✔✔false
✔✔T/F: the only base plate with which Triathlon TS insert can be used is the cemented
universal base plate. - ✔✔true
