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P & O Quiz 1
Terms in this set (20)
What three historical events lead to the development of prosthetics and orthotics?
WWI, WWII, and Polio (1950)
What are the five characteristics of materials to consider?
1. Corrosion Resistance
This material is typically used to protect the skin from irritation and as an interface material. It is easily molded and provides dimensional stability.
What are two major disadvantages of using steel and its alloys for prosthetic and orthotic design?
1. High density
2. Low resistance to corrosion
This material is well-suited for P&O design due to its high strength/weight ration and resistance to corrosion.
This material is commonly used in pre-fabricated components, it has low density making energy expenditure low.
What are the two major disadvantages of using Titanium for P&O design?
2. Difficult to machine and fabricate
This material is advantageous to use for P&O design because of its low density and high durability, however, it is not widely used.
What material is commonly used for prosthetic feet or as reinforcement for knee units?
Thermoplastic or Thermosetting Plastic?
1. Can be re-shaped
2. Can be high or low temperature
3. Can only be shaped through grinding
4. Can be shaped directly on the body
5. More frequently used in prosthetics as opposed to orthotics
This material is ideal for reducing shear forces.
This material possesses characteristics of stress relaxation and creep and is commonly used to attenuate skeletal shock at heel strike in the tibia.
What three components are assessed in a particular anatomical segment on the standardized orthotic prescription form?
1. Volitional Force: MMT's
Ideally, when should prosthetic prescription begin?
What are the four c's to consider when designing an ideal orthoses?
What should you consider in terms of "cost" when designing an orthotic?
Both energy expenditure cost of the patient as well as monetary cost
The amount of external load a material can support or sustain refers to what characteristic of that material?
The amount of bending or compression that occurs when a material is loaded refers to what characteristic of that material?
What characteristic of a material is determined by its ability to withstand repeated cycles of loading and unloading?
Durability (fatigue resistance)
What is the prime determinant of energy cost due to a prosthetic during functional activities?
This set is often in folders with...
P & O Quiz 2
P&O Quiz 3
Prosthetic Components for LE Amputees
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