NPTE: Prosthetics
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
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| Describe Syme's Disarticulation | Ankle disarticulation with attachemtn of the heel pad to the distal end of tibia for weight bearing
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| For a long below-knee amputation, how much of the tibial length is spared? | More than 50% of the length spared
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| Desired tibial length for below-knee amputation | 20-50% of length spared
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| For a long above-knee amputation, how much of femoral length is spared? | More than 60% of the length spared
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| Desired femoral length for above-knee amputation | 35-60% of length spared
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| Define Hemicorporectomy | Amputation of both lower limbs and pelvis below L4-L5 level
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| Disadvantages of Rigid Dressing | Requires careful application & close supervision during healing stages, does not allow for daily wound inspection or dressing changes
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| Advantages of a Temporary Prosthesis | Shrinks residual limb more effectively than elastic wrap, allows for early bipedal ambulation & return to function, positive motivational factor, reduces need for complex exercises
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| Advantages of Soft Dressing | Relatively inexpensive, lightweight, readily available, easily laundered
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| Socks should not exceed... | 15 ply thickness for proper fit & weight bearing of socket
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| SACH (Solid Ankle Cushioned Heel) Foot allows motion in... | Plantarflexion with small amounts of mediolateral & transverse motions
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| Describe a Patellar-tendon bearing socket | A total contact socket that allows for maximum distribution of the load and and assistance in venous blood circulation.
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| Describe a Quadrilateral Socket | Medial & posterior walls are same height, Anterior & Lateral walls are 2.5-3 inches higher, A horizontal posterior shelf to support ischial tubs & gluteals
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| List anatomic causes for Excessive Knee Flexion at Initial Contact | Flexion contracture, weak quadriceps
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| List Prosthetic Cause for Excessive Lateral Thrust at Midstance | Excessive foot inset
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| List Prosthetic Cause for Excessive Medial Thrust at Midstance | Excessive foot oustet
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| List Prostheitc Causes of Circumduction during Swing Phase in AKA | Long prosthesis, locked knee unit, loose friction, inadequate suspension, small socket, loose socket, foot plantarflexed
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| List Anatomic Causes of Lordosis during Stance | Hip flexion contracture, weak extensors
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| List Prosthetic Causes of Lateral Trunk Lean during Stance | Short prosthesis, inadequate lateral wall adduction, sharp or high medial wall
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