JR 101 Week 2
describe the single radius in less than 20 words - ANS-the realtionship between the
center of the knee and the functional arc of the impant that remains constant throughout
ROM
functional arc range - ANS-10 to 110 degrees
what is the functional axis a combination of - ANS-the longitudinal axis of the tibia
(int/ext rot.) and the flex/ext. axis of the femur
deep flexions is active or passive - ANS-active
slope of the tibia? implications? - ANS-sloped lateral to medial; (lateral higher) because
the tibia is cut straight this affects the space, therefore mored needs to be taken off the
medial femoral condyle. helps keep ligaments at length
3 things the single radius gives patietns and customers - ANS-satisfaction, surviorship
and stability
what is design purpse of single radius? - ANS-designed to address stability during
active flexion where the majority of motion occurs
Single radius takeawys - ANS-the persepctive of the TEA transepicondylar axis has
allowed researchers a more accurate persepctive of knee motion
what is a knee impant with multiple radia called? - ANS-a J curve
Stryker Triathlon system is built around a circular single radius allowing for -
ANS--constant ligament tension and stbaility in flexion
- enhanced stability throughout the active ROM
how much less quad strength with use of smooth rotating single axis - ANS-57%
what is the patellofemoral offset? - ANS-distance between the center of the knee and
the patella
PS impplant takes less - ANS-bone
describe the single radius in less than 20 words - ANS-the realtionship between the
center of the knee and the functional arc of the impant that remains constant throughout
ROM
functional arc range - ANS-10 to 110 degrees
what is the functional axis a combination of - ANS-the longitudinal axis of the tibia
(int/ext rot.) and the flex/ext. axis of the femur
deep flexions is active or passive - ANS-active
slope of the tibia? implications? - ANS-sloped lateral to medial; (lateral higher) because
the tibia is cut straight this affects the space, therefore mored needs to be taken off the
medial femoral condyle. helps keep ligaments at length
3 things the single radius gives patietns and customers - ANS-satisfaction, surviorship
and stability
what is design purpse of single radius? - ANS-designed to address stability during
active flexion where the majority of motion occurs
Single radius takeawys - ANS-the persepctive of the TEA transepicondylar axis has
allowed researchers a more accurate persepctive of knee motion
what is a knee impant with multiple radia called? - ANS-a J curve
Stryker Triathlon system is built around a circular single radius allowing for -
ANS--constant ligament tension and stbaility in flexion
- enhanced stability throughout the active ROM
how much less quad strength with use of smooth rotating single axis - ANS-57%
what is the patellofemoral offset? - ANS-distance between the center of the knee and
the patella
PS impplant takes less - ANS-bone
