| A | B |
|---|
| Flexion | Extension Rotation |
| Internal | External Rotation |
| Varus | Valgus Rotation |
| Anterior | Posterior Translation |
| Medial | Lateral Translation |
| Posterior | Anterior Translation |
| FIVAMP | 6 Degrees of Freedom |
| Mechanical Axis | Straight line from Femoral Head to center of Ankle |
| Anatomical Axis | True center line of the body bone structure, 2 mutually exclusive lines in lower extremities. |
| Functional Arc of Knee | (Active), Average range of motion between 10-120 degrees |
| 2 combined Axes for knee's Functional Axes | Transepicondylar Axis in Femur and Longitudianl axed of Tibia |
| Relationship of insertion points of collateral liagements in the TEA | they are synonymous, imaginary line that connects the two ligaments |
| What is the “Clinical” TEA? | connects the most prominent point of Medal (Volcano Rim) / Lateral epicondyles |
| Which Distal Femoral epicondyle has the Sulcus | Medial |
| Relationship of Whiteside's Line have to the TEA | Perpendicular to the Surgical TEA |
| How do you draw Whiteside’s Line on the distal femur? | Interior to Posterior, the deepest part of the trochanter grove to the center of the intercondylar notch. |
| T/F, the human knee has a natural medial pivot point | True |
| Does the normal human knee pivot medially or laterally | Medially |
| The Tibia rotate internally or externally as the knee extends | Externally |
| Tin-Flex | Tibia Flexion, Internal Rotation |
| Tex-Ex | Tibai Extension, External Rotaion |
| Arcs of motion in the Knee | Screw Home Arc, Deep Flexion Arc, Functional Arc |
| "Arc" Motion that is active | Functional Arch |
| "Arc" Motion that are passive | Screw Home, Deep Flexion |
| Muscle group creates the extensor mechanism? | Quadriceps |
| T/F, the patella decreases the lever arm of the extensor mechanism in knee joint? | False |
| How does the tibial tubercle affect the extensor mechanism? | Anchors the patella ligament if it was broken you wouldn’t be able to extend your leg |
| Moment Arm | In the sagittal plane, the distance between the quadriceps force in the knee joint and the flexion extension axis (TEA) can be referred to as being a *****. |
| Surgical "TEA" | Only seen on C-T scan, Sulcus (low spot-on medial side only) |
| How many degrees of freedom are there in the Knee? | 6 (FIVAMP) |
| Single Radius | Allows less force on liagments |
| Circular | Looking along the Functional Flexion Axis (Epicondylar Axis) posterior condyles from 10-120 degrees the condyles appear? |
| T/F,* Total stabilized (Bearing/Insert)- requires cement? | True* |
| Triathlons full periphery locking, locking wire, and anti-rotation have demonstrated less ****** than other designs. | Micromotion |
| Transepicondylar ligament insertions points? | MCL & LCL |
| Extension Gap | Space at distal femur and proximal tibia |
| T/F,** Posterior Condyle line is drawn in when the knee is flexed? | True** |
| 7 degree offset in Femur component allows for ***** and avoids ***** . | Downsizing Notching |
| T/F,*** Tibial augments are size-specific and come in left medial/right lateral or right medial/left lateral configurations? | True*** |
| T/F,**** Screw Home position is the last 20 degrees of extension? | True**** |
| T/F,* There is 6 CR component inserts that match the CS sizes? | False* |
| T/F,** Baseplate, Peg diameter is 7, all lengths are 1.6? | False** |
| T/F,*** Baseplate Titanium foam thickness is 1.8mm thick? | False*** |
| T/F,***** For size 1-7, size incremental on Femoral components they are all less than or equal to 3? | True***** |
| T/F,****** Triathlon TS augments can be used with Triathlon primary PS femur? | True****** |
| T/F,******* Size matching: one up, one down, e.g. size 5 femur with size 4 or 6 insert/baseplate? | True******* |
