Download Prosthetic Written Simulation Exam Questions and Answers and more Exams Prosthetics & Orthotics in PDF only on Docsity!
And Answers Latest Update 2025
K1 Prosthetic Feet - - - correct answer ✅SACH foot K2 Prosthetic Feet - - - correct answer ✅-SAFE Foot / Flexible Keel -Single Axis Foot -Multi Axial Foot K3 Prosthetic Feet - - - correct answer ✅-Dynamic Response / Energy Storing -Flex foot system -Hydraulic Ankles -Microprocessor feet SACH Foot - - - correct answer ✅-solid ankle cushion heel -simplest design -cushion on heel compresses at heel strike, rigid keel allows for stability at midstance, and flexible forefoot provides roll over
And Answers Latest Update 2025
SAFE Foot / Flexible Keel - - - correct answer ✅-Stationary attachment flexible endoskeleton -flexible internal keel permits triplanar movement and easy roll over -flexible keel feet have a smooth and easier roll over compared to SACH and single axis -limited push off Single Axis Foot - - - correct answer ✅-PF/DF only -Bumpers can change foot response (add bumpers anterior to resist DF, add bumpers posterior to resist PF) -Bumpers can also be made soft/stiff -Will enhance knee stability in early stance -Increased weight & maintenance -Abrupt DF stop will increase knee hyperextension Multi Axial Foot - - - correct answer ✅-PF/DF, Inversion/Eversion, IR/ER -Accommodated uneven terrain
And Answers Latest Update 2025
Single Axis Prosthetic Knee - - - correct answer ✅-simulates simple hinge -allows shin to swing freely in flexion and extension -stance phase stability through positioning of knee behind the weight line and volitional muscle control -light weight, durable, low maintenance -no inherent mechanical stability -not appropriate for those with short limbs -good for those with long residuums who can voluntarily stabilize knee through active hip extension against the posterior wall of the prosthesis Polycentric Prosthetic Knee - - - correct answer ✅-has moving center of rotation -flexes during swing -creates relative "shortening" of distal prosthesis (increases toe clearance, allows shin to tuck under thigh when sitting) -inherent stance phase stability -poor durability
And Answers Latest Update 2025
Weight Activated Stance Control Knee Units - - - correct answer ✅-has braking mechanism that is activated when weight is applied during stance (intent is to prevent or reduce unwanted knee flexion during stance) -if IC made when knee is not completely extended, the Braking mechanism provides additional stability -during swing functions as single axis knee -good for recent amputees, short residuums, those with weak hip extensors Manual Locking knee - - - correct answer ✅-for patients who must rely on mechanical stability in stance -basically a single axis knee with the addition of a locking pin -used by those who walk with the knee locked in extension -can manually unlock -often used in training when balance, endurance, or cooperation may be a problem Hydraulic Prosthetic Knees - - - correct answer ✅-cadence response
And Answers Latest Update 2025
Extension Assist (on prosthetic knees) - - - correct answer ✅-for those who require assistance initiating knee extension in early swing -usually an internal spring or elastic strap that recoils from elongated position -useful to control excessive heel rise in early swing Torque Absorbers / Axial Rotation Device - - - correct answer ✅-simulates axial rotation during stance -reduces shear at limb/prosthesis interface -especially useful for those with fragile skin, sensitive skin or adherent scars -also for those who are extremely active (sports), have high activity jobs, or are on uneven terrain often -adds weight and susceptible to mechanical failure K1 Ambulator Knees (generalized qualities) - - - correct answer ✅-locks in full extension -single axis or polycentric -extension assist
And Answers Latest Update 2025
K2 Ambulator Knees (generalized qualities) - - - correct answer ✅-single axis or polycentric -friction dampening -weight activated brake -extension assist K3 Ambulator Knees (generalized qualities) - - - correct answer ✅-hydraulic or pneumatic controlled knees -microprocessors Concept of TSB vs. PTB - - - correct answer ✅-TSB: uniformly distribute pressure over the entire residuum (hydrostatic seal) -PTB: pressure tolerant areas and pressure intolerant areas Indications for TSB Socket - - - correct answer ✅volume fluctuations, gel liner, suction, elevated vacuum
And Answers Latest Update 2025
Suspensions used with PTB sockets - - - correct answer ✅supracondylar, supracondylar/suprapatella, medial wedge, cuff suspension, inverted y strap to waist belt Types of interface used in transtibial sockets - - - correct answer ✅-socks only -foam liner -gel liner Indications for socks used as interface - - - correct answer ✅well healed residuum, muscular or well covered residuum, long time user Contraindications for socks used as interface - - - correct answer ✅diabetics, vascular disease Advantages for socks used as interface - - - correct answer ✅easy, cheap
And Answers Latest Update 2025
Limitations for socks used as interface - - - correct answer ✅shear at skin increases with swear, minimal cushion Indications for foam liner used as interface - - - correct answer ✅bony residuum, excessive sweating/cannot keep gel liner clean, long time user Contraindications for foam liner used as interface - - - correct answer ✅N/A Advantages for foam liner used as interface - - - correct answer ✅simple, cheap, easy to modify, used for dysvascular conditions, anatomical suspension, keeps limb cooler Limitations for foam liner used as interface - - - correct answer ✅hard to replace without replacing socket, less protection against local pressure and shear, more prone to wear out Indications for gel liner used as interface - - - correct answer ✅transtibial amputation
And Answers Latest Update 2025
Knee Sleeve indications for transtibial socket suspension - - - correct answer ✅low activity (K1, K2), harsh enviornment, large volume fluctuations, secondary suspension, good UE dexterity Knee Sleeve Limitations for transtibial socket suspension - - - correct answer ✅durability (gel < neoprene), more limb/socket movement than suction, cant use neoprene to get seal Suction Indications for transtibial socket suspension - - - correct answer ✅stable limb volume, good cognitive ability (troubleshooting problems), good UE dexterity Suction Advantages for transtibial socket suspension - - - correct answer ✅total contact, simple, claimed increase in proprioception Suction Limitations for transtibial socket suspension - - - correct answer ✅durability (no seal = no suspension), reduced knee ROM when used with a sealing sleeve
And Answers Latest Update 2025
Mechanical Locking Indications for transtibial socket suspension - - - correct answer ✅fluctuating volume, recent amputation, limited cognition, no skin adhesions Mechanical Locking Advantages for transtibial socket suspension - -
correct answer ✅secure (click), simple, quick donning/doffing Mechanical Locking Limitations for transtibial socket suspension - - - correct answer ✅"milking" effect, more motion relative to suction but les then knee sleeve, alignment/build height considerations Elevated vacuum indications for transtibial socket suspension - - - correct answer ✅need to minimize limb/socket motion, good cognition (trouble shooting problems), good UE dexterity, patient wants technology Elevated vacuum Advantages for transtibial socket suspension - - - correct answer ✅increased proprioception, increased control
And Answers Latest Update 2025
-possible flexion contracture What causes unequal stride lengths at initial contact on a TT amputee? - - - correct answer ✅-suspension limits ROM -poor gait habit What causes knee flexion to be jerky at loading response on a TT amputee? - - - correct answer ✅weak quadriceps What causes knee flexion to be abrupt at loading response on a TT amputee? - - - correct answer ✅-foot too posterior -socket too flexed -heel too high -heel too firm -shoe too stiff
And Answers Latest Update 2025
What causes the knee to remain extended in loading response on a TT amputee? - - - correct answer ✅-foot too anterior -socket too extended -heel too soft -heel too low -excessive use of knee extensors What causes pistoning to occur at loading response on a TT amputee? - - - correct answer ✅-poor suspension -not enough socks What causes the pylon to lean medially at midstance on a TT amputee? - - - correct answer ✅-too much adduction in socket -foot too outset What caused the pylon to lean laterally at midstance on a TT amputee? - - - correct answer ✅-too much abduction in the socket
And Answers Latest Update 2025
-residuum pain -foot too outset What causes early, abrupt heel-off ("drop off") at terminal stance on a TT amputee? - - - correct answer ✅-toe lever too short -foot too posterior -foot too dorsiflexed What causes delayed heel off at terminal stance on a TT amputee? -
correct answer ✅-toe lever too long -foot too anterior -foot too plantarflexed What causes drop off (patient falls too quickly to sound side) at preswing on a TT amputee? - - - correct answer ✅-foot too posterior -foot too dorsiflexed -excessive socket flexion
And Answers Latest Update 2025
What causes the socket to drop away from the residuum in preswing on a TT amputee? - - - correct answer ✅-poor suspension -not enough socks What causes the foot to whip medial or laterally in swing on a TT amputee? - - - correct answer ✅-poor suspension allowing rotation of the socket What causes the toe to touch the ground in swing on a TT amputee? - - - correct answer ✅-prosthesis too long -poor suspension -socket limits ROM (knee flexion) -muscle weakness -lack of gait training Quad socket vs. Ischial containment socket - - - correct answer ✅-quad: wide ML, narrow AP. -IT: narrow ML, wide AP. Wide AP enhances muscle function by providing more room for muscle contraction
