HIGH YIELD Flashcards

1
Q

types of implants in podiatry

A

transient

  • sutures
  • dressings
  • fixation

permanent implants
-joint replacement

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2
Q

materials of Podiatric biomaterials?

A

metals and metallic alloys
polymers
ceramics

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3
Q

metals and metallic alloys?

A

titanium
cobalt chromium
stainless steel

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4
Q
silicone/rubbers
polyethylene
-UHMWPE
PMMA
absorbable
A

polymers

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5
Q

what are the absorbable polymers?

A

polyglycolic acid
-dexon sutures
polylactic acid
-fixation screws/pins/wires/anchors

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6
Q

absorbable polymers?

A

co-polymers

  • vicryl
  • monovicryl
  • PLA/PGA co polymers

poly-p-dioxanone
-PDS sutures

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7
Q

what are the applications of absorbable polymers?

A

fixation devices
drug delivery systems
bone fillers
tissue scaffolds

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8
Q

ideal characteristics of absorbable fixation devices?

A
non toxic
stable
good biocompatibility
adequate mechanical strength
predictable degradation rate
water-soluble
natural route to eliminate metabolites
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9
Q

what are the ceramics?

A

alumina
zirconia
carbons
hydroxyapatite

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10
Q

this is a combination of 2 or more materials leading to improved performance

matrix material and fiber material

A

composites

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11
Q

factors for the success of biomaterial or implant?

A

properties and biocompatibility of the implant

health of the recipient

competency of the surgeon

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12
Q

name the def

mechanical properties of the material allow it to perform the fxn for which it is intended?

A

mechanical compatibiity

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13
Q

name the def

biomaterial must not produce an adverse effect on the tissue onto which it is implanted

recipient tissue must not have a detrimental effect on the performance of the biomaterial

A

biocompatibility

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