425 - Micromotion at the tibial plateau in total knee arthroplasty

a b c d a b c d 1 ■ ■ ■ ■ 11 ■ ■ ■ ■ 2 ■ ■ 12 ■ ■ ■ ■ 3 ■ ■ ■ ■ 13 ■ ■ ■ ■ 4 ■ ■ ■ ■ 14 ■ ■ ■ ■ 5 ■ ■ ■ ■ 15 ■ ■ ■ ■ 6 ■ ■ 16 ■ ■ ■ ■ 7 ■ ■ ■ ■ 17 ■ ■ ■ ■ 8 ■ ■ ■ ■ 18 ■ ■ ■ ■ 9 ■ ■ 19 ■ ■ ■ ■ 10 ■ ■ ■ ■ 20 ■ ■ ■ ■ #425   MAY 2019   1.5 CE CREDITS  $9 4. How was micromotion calculated? a. Generalized estimating equations were created. b. Visual inspections occurred on each view. c. An analysis was conducted to measure the regions. d. A line was drawn between each measur- ing points. 5. Micromotion analysis was conducted in howmany stages of joint loading? a. 2 b. 3 c. 4 d. 5 6. True or False. A water-based lubricant was applied between all articulating sur- faces to combat the conditions during the test environment. a. True b. False 7. Mobile-bearing tibial components were introduced in the ______. a. 1950s b. 1960s c. 1970s d. 1980s 1. In this study, relative micromotion was measured within tibial speci- mens with one of four prosthesis designs. Which of the following was NOT one of them? a. Fixed-bearing, posterior stabilized primary components b. Fixed-bearing, posterior stabilized revision components c. Fixed-bearing, rotating platform (RP) d. RP, posterior stabilized revision com- ponents 2. True or False: All tibial components were implanted using high-viscosity PMMC bone cement. a. True b. False 3. Howmany trials were repeated for each of the four digital viewing angles? a. Four b. Five c. Six d. Seven 8. Which designs resulted in decreased torque transfer through the prosthesis at the joint articulation? a. Fixed b. RP c. Both of the above d. Neither of the above 9. True or False. The RP design exhibited reduced micromotion when compared with the fixed bearing designs during the direct axial compression phase of the loading cycle in two primary and one revision measurement region. a. True b. False 10. Understanding the mechanical implica- tions of rotation of the ____ is crucial for maximizing component stability. a. Tibial spine b. Tibia c. Tibial plateau d. Knee MICROMOTION AT THE TIBIAL PLATEAU IN TOTAL KNEE ARTHROPLASTY # 425 MAY 2019 1.5 CE CREDITS $9 NBSTSA Certification No. AST Member No. ■ My address has changed. The address below is the new address. Name Address City State Zip Telephone ■ Check enclosed  ■ Check Number Make It Easy - Take CE Exams Online Y ou must have a credit card to pur- chase test online. We accept Visa, MasterCard and American Express. Your credit card will only be charged once you pass the test and then your credits will be automati- cally recorded to your account. Log on to your account on the AST homepage to take advantage of this benefit. If you want to mail in your CEs, but still want to pay by credit card, give us at call at 800-637-7433. Micromotionat the tibial plateau in total knee arthroplasty MAY 2019 | The Surgical Technologist | 211