TO EARN TWO MCE CREDITS:
- Read the article on pages 112–118.
- Complete the examination.
- Submit your completed examination to the Academy per the directions on the next page.
The following questions require short answers only; you do not have to use complete sentences. All questions refer to the article, A Comparative Study of Functional Grasp and Efficiency Between a 3D Printed and Commercial Myoelectric Transradial Prosthesis Using Able-Bodied Subjects: A Pilot Study, Gurinder S. Bains, MD, PhD, et al.
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JPO QUIZ - A Comparative Study of Functional Grasp and Efficiency Between a 3D Printed and Commercial Myoelectric Transradial Prosthesis Using Able-Bodied Subjects: A Pilot Study, Gurinder S. Bains, MD, PhD, et al.
- [Select the correct response] The primary focus of this study was to determine if 3D printed myoelectric hands are:
- Cheaper than commercially produced hands
- More durable than commercially produced hands
- More cosmetic than commercially produced hands
- More efficient than commercially produced hands
- [Select the correct response] According to this article, all of the following statements about 3D printed upper-limb prostheses are accurate EXCEPT:
- The technology is improving rapidly.
- They are less expensive than other prostheses.
- They are more effective than conventional or commercial myoelectric prostheses.
- There is a broad network of people collaborating to make the technology available.
- [Select the correct response] How many subjects were included in this study?
- [Select the correct response] The i-limb ultra has two sensors that can be placed, but in this study, only one electrode was used. Which statement best explains why?
- The second sensor impeded the function of the device.
- An adequate site for the second sensor was not accessible.
- The second sensor required significant additional work to install.
- Using one electrode mimicked the 3-electrode setup of the 3D prosthesis.
- [Select the correct response] When were the trials for the two devices performed?
- The same day
- Two weeks apart
- At random intervals
- After the subjects wore the devices for several weeks
- [Select the correct response] All of the following statements accurately summarize the results of this study EXCEPT:
- The i-limb outperformed the Limbitless arm on the Box and Blocks Test (BBT).
- The Limbitless Arm was not functional as a prosthetic device.
- The i-limb was reported to be heavier than the Limbitless Arm by 25% of the participants.
- Men had a more significant increase in efficiency than women when wearing the i-limb.
- [Select the correct response] One reason the authors gave as a potential explanation for why the i-limb outperformed the Limbitless Arm was:
- The Limbitless arm was much more lifelike than the i-limb.
- The subjects had more time to adapt to the i-limb than the Limbitless Arm.
- The i-limb was significantly lighter and led to less fatigue than the Limbitless Arm.
- The Limbitless arm uses hobby-grade components instead of commercial components.
- [Select the correct response] Fitting issues for the custom attachment devices included all of the following challenges EXCEPT:
- They were bulky and heavy.
- The wooden handle participants grasped caused pain.
- Some participant’s forearms were too big for the device.
- The device caused skin breakdown over the dorsum of the hand.
- [True or False]___________ This study was performed using able-bodied individuals.
- [True or False]___________ The Box and Blocks Test has not yet been shown to have validity or reliability.
- [True or False]___________ The joints of the digits of the Limbitless hand lacked rigidity that may have contributed to its lower score on the BBT.
- [True or False]___________The authors suggest conducting additional research on individuals who have sustained amputations.
Complete the JPO Self-Assessment Examination on the previous page and score a minimum of 80 percent to earn two MCE credits. Send the completed examination and payment in U.S. currency ($20 for Academy members, $50 nonmembers) to: American Academy of Orthotists and Prosthetists, 1331 H Street NW, Suite 501, Washington, DC 20005. The examination must be received by the Academy within three years of the publication date for credit to be awarded.
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