Prosthetic Selection - Nbcot Registered Occupational Therapists Otr

Which prosthetic foot allows ankle motion via a mechanical joint to improve uneven-surface accommodation?

Single-axis foot. The joint permits plantarflexion and dorsiflexion, aiding adaptation to inclines and reducing shear forces.
Which prosthetic knee is most appropriate for a K $1$ ambulator who needs maximal safety during stance?

Manual-lock knee. It locks in extension to maximize stance phase security, ideal for low-mobility users prone to falls.
Which transtibial suspension uses a gel liner and a lanyard strap for donning in limited hand function?

Lanyard suspension with gel liner. The lanyard facilitates easy donning by pulling the liner into the socket, ideal for users with dexterity limitations.
Which transtibial socket design uses anterior and posterior trimlines to improve mediolateral stability?

PTB-SC/SP (supracondylar) socket. The trimlines enhance mediolateral control by capturing the femoral condyles, reducing knee instability.
Which prosthetic knee offers variable cadence and adaptive swing/stance control using sensors and microprocessors?

Microprocessor-controlled knee (MPK). Sensors detect gait phases to adjust resistance dynamically, optimizing safety and efficiency across speeds.
Which prosthetic foot provides multi-plane motion to accommodate uneven terrain?

Multiaxial foot. It allows inversion, eversion, and rotation alongside sagittal motion for better terrain negotiation.
Which upper-limb terminal device is most appropriate when durability and strong grasp are priorities?

Hook terminal device. Its robust construction supports heavy-duty tasks with strong prehension, prioritizing function over appearance.
Which prosthetic foot is most appropriate for a very low-activity user needing maximum stability?

SACH foot. Its rigid design with cushioned heel prioritizes stability over mobility for users with minimal functional demands.
Which prosthetic control uses EMG signals from residual muscles to power a motorized hand or elbow?

Myoelectric control. EMG signals trigger motors for proportional control, providing intuitive operation without harness restrictions.
Which prosthetic knee is most appropriate when maximal stance stability is needed at slow cadence?

Single-axis knee with manual lock. The lock ensures knee extension during stance, providing security for users with limited balance or strength.
Which transtibial socket design aims for total surface weight bearing and intimate fit with a liner?

TSB (total surface-bearing) socket. It promotes even pressure distribution across the entire residual limb surface for improved comfort and skin health.
Which upper-limb terminal device is most appropriate when cosmesis is the primary goal?

Passive cosmetic hand. It offers realistic appearance without active function, suitable for users focused on aesthetics and social integration.
Which prosthetic control is body-powered and commonly uses a harness and cable to operate the terminal device?

Body-powered cable control with harness. Body movements tension the cable via the harness, enabling voluntary control of the device with tactile feedback.
Which prosthetic knee uses a polycentric design to improve toe clearance and stability in early stance?

Polycentric (four-bar) knee. Multiple linkages mimic natural knee motion, shortening the leg in swing for better clearance and stance control.
Which transfemoral suspension uses suction with a one-way valve and a sealing sleeve?

Suction suspension with valve and sleeve. The valve expels air to create suction, while the sleeve seals to maintain suspension during varied activities.
What prosthetic suspension uses negative pressure with a sealing sleeve for a secure socket fit?

Elevated vacuum suspension with sealing sleeve. This system creates negative pressure between the liner and socket to minimize pistoning and enhance proprioception for active users.
Which transfemoral socket emphasizes ischial containment for coronal plane stability?

Ischial containment (IC) socket. Containment of the ischium within the socket brim improves pelvic stability and reduces gait deviations.
Which transfemoral suspension uses a belt around the pelvis to assist suspension and stability?

Silesian belt suspension. The belt encircles the pelvis to augment suspension and control rotation in users with short residual limbs.
Which transtibial suspension uses a distal pin that locks into a shuttle mechanism in the socket?

Pin-and-lock (shuttle lock) suspension. The mechanism ensures reliable distal attachment, reducing suspension failure risks during dynamic activities.
Which prosthetic knee provides stance stability through a weight-activated braking mechanism?

Weight-activated stance-control knee. Braking engages under load to prevent knee buckling, supporting stability in variable weight-bearing scenarios.
Which prosthetic foot is designed to be water-resistant for showering or aquatic mobility?

Waterproof (swim) prosthetic foot. Materials resist corrosion and water damage, enabling safe use in wet environments without compromising function.
Which prosthetic foot stores and returns energy to improve efficiency for higher-activity ambulation?

Dynamic response (energy-storing) foot. Carbon fiber components deform under load and recoil to propel forward, enhancing metabolic efficiency.

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