MAKO TKA OCE Actual Exam Questions And Well Elaborated Answers 100% Verified.

Are you on good hard native bone? - correct answer When popping bone registration spheres what should mps ask the dr? Take the foot/boot out of the leg holder - correct answer What is necessary to do with the foot during extension pose? -5 degrees internal rotation to 5 degrees of external rotation - correct answer What are the tibia rotation limits during capture poses? Remove osteophytes and leave retractors out of the joint - correct answer What should be done before capture poses are taken? Go to implant planning which locks in changes. Should stay on ligament balancing page to assess implant sizing - correct answer After adjusting cuts with gap balancing what should not be done? First changes undone and pivot point move to opposite location - correct answer If sagittal angle of cuts are changed ie distal fem but decide to change the opposition direction ie less flexion to more flexion then what needs to happen? 3 degrees - correct answer If the difference between medial and lateral gaps is 3 mm what is the expected max change to balance medial & lateral? Joint balancing and implant planning - correct answer With measured resection what are the two options in intra-op planning category? Bone prep and ligament balancing - correct answer With gap balancing what are the two options in intra-op planning? Proceed with previous number as actual number ie 20.4 shows as 20 and 20.5 shows 21. - correct answer If gap numbers round up or down what should be done? To create a relationship/distance bw array and respective checkpoint - correct answer What is the purpose of bone checkpoints? That the checkpoint nor the respective array have moved (fem checkpt & fem array) - correct answer What is known when a checkpoint verifies as good? No, should be down on a good, hard native bone. - correct answer Is it acceptable to hover over a bone reg sphere to get a passing verification? Setting approach of sawblade - correct answer What is being completed when the yellow lines of the haptic boundaries appear on the screen? An obvious problem such as the wrong saw attachment, working on a different bone than what the mako screen indicates, wrong sawblade is loaded, etc. - correct answer What is the likely issue when a red, not verifying # displays on the screen? Narrow and standard saw blades are calibrated to different lengths to separate calibration points - correct answer How does Mako know which sawblade is being used? I.e. attempting to use the wrong size sawblade Look for problems starting at the end of the sawblade, then whether sawblade attachment is correctly loaded to mics handpiece, whether mics handpiece is securely tightened to Rio, whether base array is tightened stable - correct answer If a saw blade does not pass verification then what problem-solving sequence should be done? If rio is draped then base array tightened in a good position by staff. Then a rio setup & rio registration needs to be completed again. - correct answer If a base array is found to have moved or is not securely tightened what should be done? then new bone registration needs to be completed on surfaces that cuts still need completed and new checkpoint captured/verified - correct answer If a femoral array has moved after the bone registration or cuts have been done on the femur what needs to be done to resolve? Checkpoint placed in a new location, old captured point for checkpoint deleted, & New captured point/verified For new location of checkpoint - correct answer What needs to be done if a checkpoint comes loose off the bone? One sphere of bone registration verified if all six spheres were just verified and determine whether respective array had not moved? - correct answer If a checkpoint is captured in a new location what needs to be done before proceeding w/ bone prep? 85% - correct answer What is the minimum battery charge level necessary to power on the mako? Same direction as the patient bed ie north and south - correct answer What is the necessary orientation of the slots in the boot foot pedal? Start with the number 1 facing Scrub Tech, number 1 to the left, number 2 to the right. Left arm crossed over the top of the right arm-grabbing the bigger blue tab with the right hand - correct answer What is the order for unpacking the Rio Drape? Hip center - correct answer What landmark is part of femur bone registration? Both malleoli - correct answer What land marks are part of tibia bone registration Confirm tibia rotation by walking the blue probe on the tibia tuberosity - correct answer What needs to be done with the tibia during the final 0CE? Down on good cortical bone but not piercing into none, at least 5 mm space between points - correct answer What keywords need to be said for recommended points with bone registration? Some green points in all three planes of the bone. Investigate areas of concern with yellow or red cluster of points. If probe verifies points are less than 1mm. Then May proceed with popping spheres - correct answer What is necessary for a bone registration with 5 or less mm overall accuracy? 6- 2 in each plane of the bone - correct answer How many spheres on bohn registration should be popped/verified? Put probe on bone in all 4 directions around sphere. If all under 1mm then sphere is manually verified - correct answer What should be done when yes 6 spheres cannot be verified in bone registration? Measured resection, ligament balancing, distal femur/proximal tibia first a.k.a. Gap balancing - correct answer What are the 3 workflows available in Mako TKA software? 110. 100-110 - correct answer What is the optimal amount of flexion and range for making bone cuts? Based on the anterior bow of the femur found between the hip Center and knee Center (mechanical axis of sagittal plane) - correct answer How is the amount of flexion determined for the femur? Based on the point between knee center and ankle center - correct answer How is the amount of slope determined for the tibia? Fibula bone adjacent to tibia bone model (not specifically segmented) - correct answer What is the sure fast way of determining the side of knee looking at? Archive and exit - correct answer What should be done on the software at the end of a successful complete in case Exit software and shut mako down. Attach new handpiece but much go through pre-check and Rio set up all over again. Mako keeps a storage of every single event that occurs. Putting a new handpiece on maintains the same error message to the computer if you do not exit and shut down. Procedure may be completed without shutting down but accuracy may be compromised - correct answer If a handpiece fails during a procedure what should be done to resolve and proceed? Only if the ER of PCA is greater than 3 degrees. So 4d ER PCA then 1 IR TEA allowed. - correct answer May the femur be IR in pre-op planning? Parallel to each other - correct answer What is the difference between the ML axis of femur & TEA? Cartilage mapping w/ green probe in the deepest portion of the native trochlear groove to align w/ middle/deepest groove of fem implant. Not overstuffing PFJ & adjust ML position to match - correct answer What needs to be demonstrated during the manual resection for the OCE test? Arm allowed to freely move but no power/cutting nor approach of MICS - correct answer What does it mean when there is an unlocked icon on the screen? Arm may move freely, MICS may set approach for cut, & power/cutting possible - correct answer What is allowed when there is a locked standby icon on the screen? Rio rotation must be +/- 2 for bottom # to show up - correct answer Why are RIO #s not displayed if flexion is 90 & Rio rotation is 3?