JR 101 PRACTICE TEST UPDATED EXAM QUESTIONS
AND SOLUTIONS RATED A+
✔✔if a surgeon commented that a particular femoral condyle was hypertrophic, the
condyle has - ✔✔increaed in size
✔✔ipsilateral meaning - ✔✔same side
✔✔another term used to describe internal rotation - ✔✔medial rotation
✔✔if a patient presented with a proximal femoral neck fracture in the hip that was less
than 120 degrees, the clincal description of the neck angle would be - ✔✔coxa-vera
✔✔A surgeon is performing a total knee procedure. When the knee is flexed, he inserts
a long IM rod down the tibial shaft to set up a proximal tibial cutting guide tower. In the
flexed knee, the point of reference that describes the position of the tip of the far end of
the rod down the tibial shaft in relation to the cutting block tower that is placed on the
rod over the tibial eminence is: - ✔✔distal
✔✔the thigh is what region of the body - ✔✔the region from the hip to the knee
✔✔the leg is what region of the body - ✔✔the region from the knee to the ankle
✔✔the appendicular skeleton is comprised of: - ✔✔pectoral girdles, the upper limbs,
pelvic girdle, lower limbs
✔✔a long bone is - ✔✔cylindrical in shape being longer than it is wide
✔✔When we discuss bone changes in form and function due to mechanical stresses
and the force of muscular tension placed on it, we are discussing: - ✔✔Wolffs Law
✔✔the flexible connective tissue found on joint surfaces which allows joint surfaces to
slide against one another is called - ✔✔cartilage
✔✔Acl origin and insertion - ✔✔originates on the lateral femoral condyle and inserts on
the anterior surface of the tibial platue (AL)
✔✔T/F: the point of origin of a muscle is a location where a muscle can move -
✔✔False
✔✔the arcs of flexion in the knee are - ✔✔screw home, functional and deep flexion
,✔✔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: the anatomic axes in the lower extremity are represented by two mutually
exclusive lines - ✔✔true
✔✔When we refer to the the "functional axes" of the knee, we reference the
combination of rotations around what two axes? - ✔✔The TEA of the femur and the
longitudinal axis of the tibia
✔✔The flexion-extension axis closely correspond the the insertion points of what two
ligamentous soft tissue structures in the knee joint? - ✔✔MCL and LCL
✔✔The "anatomical" or clinical axis the the knee is an imaginary line that connects -
✔✔the most prominent points of the medial and lateral epicondyles
✔✔the "surgical" epicondylar axis is and imaginary line that connects - ✔✔the medial
epicondylar sulcus with the prominence of the lateral epicondyle
✔✔Which distal femoral condyle in the knee joint has a sulcus? - ✔✔medial
✔✔Whitesides line is - ✔✔perpendicular to the surgical TEA
✔✔The posterior condylar line: - ✔✔marks the outer surface boundaries of the posterior
distal femoral condyles in flexion
✔✔Whitesides line is also known as - ✔✔The trochlear A/P axis
✔✔Where is Whitesides line drawn from? - ✔✔a line drawn from the deepest part of the
trochlear groove posteriorly to the center of the intercondylar notch
✔✔T/F: the normal human knee has medial pivot? - ✔✔true
✔✔is the deep flexion arc passive or active? - ✔✔passive
✔✔is the screw home arc of motion consdiered active or passive? - ✔✔passive
✔✔the most important biomechanical function of the patella is to improve -
✔✔quadriceps efficiency
✔✔T/F: the patella decreases the lever arm of the extensor mechanism of the knee joint
- ✔✔false
, ✔✔T/F: the tibial tubercle is not part of the extensor mechanism? - ✔✔false
✔✔in the knee joint, the distance (in the saggital plane) between the quads force and
the flexion extension axis of the knee can be reffered to as being a - ✔✔moment arm
✔✔T/F: the triathlon CS tibial inserts are available in six thicknesses. they match the six
thicknesses options that are available for the CR tibial insert - ✔✔false
✔✔T/F: The TS inserts offer 3 more thickness options than the PS design does -
✔✔true
✔✔T/F: there is no cementless PS femoral components? - ✔✔false
✔✔the outer width of the PS box is - ✔✔20.8mm
✔✔on any triathlon PS femoral component, the PS box height is - ✔✔20.5mm
✔✔on any triathlon PS femoral component the PS box inner width is - ✔✔16.2mm
✔✔T/F: the triathlon TS femoral augments can be used with a triathlon primary PS
cemented femoral component - ✔✔true
✔✔T/F: the triathlon tibial augments are size specific and come in left M/L or right M/L
configurations and can only be used with the universal baseplate - ✔✔true
✔✔T/F: With respect to Triathlon's femoral component/tibial insert-baseplate
compatibility, the size matching is one up and one down. A size 5 femur can be
matched with an appropriate size 4,5,6 insert/baseplate. - ✔✔true
✔✔T/F: the only baseplate with which the triathlon TS insert can be used is the
cemented universal baseplate - ✔✔True
✔✔T/F: with reference to Triathlons femoral component/tibial insert compatibility, a
cemented PS femoral component can be used with a TS insert (with universal
baseplate) - ✔✔true
✔✔T/F: with reference to Triathlons femoral component compaitibility, a TS cemented
femoral component can be used with a PS tibial insert - ✔✔True
✔✔· 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
through and including size 7. - ✔✔true
AND SOLUTIONS RATED A+
✔✔if a surgeon commented that a particular femoral condyle was hypertrophic, the
condyle has - ✔✔increaed in size
✔✔ipsilateral meaning - ✔✔same side
✔✔another term used to describe internal rotation - ✔✔medial rotation
✔✔if a patient presented with a proximal femoral neck fracture in the hip that was less
than 120 degrees, the clincal description of the neck angle would be - ✔✔coxa-vera
✔✔A surgeon is performing a total knee procedure. When the knee is flexed, he inserts
a long IM rod down the tibial shaft to set up a proximal tibial cutting guide tower. In the
flexed knee, the point of reference that describes the position of the tip of the far end of
the rod down the tibial shaft in relation to the cutting block tower that is placed on the
rod over the tibial eminence is: - ✔✔distal
✔✔the thigh is what region of the body - ✔✔the region from the hip to the knee
✔✔the leg is what region of the body - ✔✔the region from the knee to the ankle
✔✔the appendicular skeleton is comprised of: - ✔✔pectoral girdles, the upper limbs,
pelvic girdle, lower limbs
✔✔a long bone is - ✔✔cylindrical in shape being longer than it is wide
✔✔When we discuss bone changes in form and function due to mechanical stresses
and the force of muscular tension placed on it, we are discussing: - ✔✔Wolffs Law
✔✔the flexible connective tissue found on joint surfaces which allows joint surfaces to
slide against one another is called - ✔✔cartilage
✔✔Acl origin and insertion - ✔✔originates on the lateral femoral condyle and inserts on
the anterior surface of the tibial platue (AL)
✔✔T/F: the point of origin of a muscle is a location where a muscle can move -
✔✔False
✔✔the arcs of flexion in the knee are - ✔✔screw home, functional and deep flexion
,✔✔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: the anatomic axes in the lower extremity are represented by two mutually
exclusive lines - ✔✔true
✔✔When we refer to the the "functional axes" of the knee, we reference the
combination of rotations around what two axes? - ✔✔The TEA of the femur and the
longitudinal axis of the tibia
✔✔The flexion-extension axis closely correspond the the insertion points of what two
ligamentous soft tissue structures in the knee joint? - ✔✔MCL and LCL
✔✔The "anatomical" or clinical axis the the knee is an imaginary line that connects -
✔✔the most prominent points of the medial and lateral epicondyles
✔✔the "surgical" epicondylar axis is and imaginary line that connects - ✔✔the medial
epicondylar sulcus with the prominence of the lateral epicondyle
✔✔Which distal femoral condyle in the knee joint has a sulcus? - ✔✔medial
✔✔Whitesides line is - ✔✔perpendicular to the surgical TEA
✔✔The posterior condylar line: - ✔✔marks the outer surface boundaries of the posterior
distal femoral condyles in flexion
✔✔Whitesides line is also known as - ✔✔The trochlear A/P axis
✔✔Where is Whitesides line drawn from? - ✔✔a line drawn from the deepest part of the
trochlear groove posteriorly to the center of the intercondylar notch
✔✔T/F: the normal human knee has medial pivot? - ✔✔true
✔✔is the deep flexion arc passive or active? - ✔✔passive
✔✔is the screw home arc of motion consdiered active or passive? - ✔✔passive
✔✔the most important biomechanical function of the patella is to improve -
✔✔quadriceps efficiency
✔✔T/F: the patella decreases the lever arm of the extensor mechanism of the knee joint
- ✔✔false
, ✔✔T/F: the tibial tubercle is not part of the extensor mechanism? - ✔✔false
✔✔in the knee joint, the distance (in the saggital plane) between the quads force and
the flexion extension axis of the knee can be reffered to as being a - ✔✔moment arm
✔✔T/F: the triathlon CS tibial inserts are available in six thicknesses. they match the six
thicknesses options that are available for the CR tibial insert - ✔✔false
✔✔T/F: The TS inserts offer 3 more thickness options than the PS design does -
✔✔true
✔✔T/F: there is no cementless PS femoral components? - ✔✔false
✔✔the outer width of the PS box is - ✔✔20.8mm
✔✔on any triathlon PS femoral component, the PS box height is - ✔✔20.5mm
✔✔on any triathlon PS femoral component the PS box inner width is - ✔✔16.2mm
✔✔T/F: the triathlon TS femoral augments can be used with a triathlon primary PS
cemented femoral component - ✔✔true
✔✔T/F: the triathlon tibial augments are size specific and come in left M/L or right M/L
configurations and can only be used with the universal baseplate - ✔✔true
✔✔T/F: With respect to Triathlon's femoral component/tibial insert-baseplate
compatibility, the size matching is one up and one down. A size 5 femur can be
matched with an appropriate size 4,5,6 insert/baseplate. - ✔✔true
✔✔T/F: the only baseplate with which the triathlon TS insert can be used is the
cemented universal baseplate - ✔✔True
✔✔T/F: with reference to Triathlons femoral component/tibial insert compatibility, a
cemented PS femoral component can be used with a TS insert (with universal
baseplate) - ✔✔true
✔✔T/F: with reference to Triathlons femoral component compaitibility, a TS cemented
femoral component can be used with a PS tibial insert - ✔✔True
✔✔· 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
through and including size 7. - ✔✔true
