Please confirm topic selection

Are you sure you want to trigger topic in your Anconeus AI algorithm?

Please confirm action

You are done for today with this topic.

Would you like to start learning session with this topic items scheduled for future?

Review Question - QID 1327

In scope icon L 1 A
QID 1327 (Type "1327" in App Search)
In evaluating methods of polyetheylene sterilization for hip arthroplasty, gamma-irradiation in air compared to irradiation in an inert substance results in which of the following?

No difference in regards to outcome

2%

59/3168

Higher rate of cross-linking when irradiated in air

3%

107/3168

Lower rate of oxidation when irradiated in air

2%

58/3168

Accelerated wear and failure when irradiated in air

91%

2887/3168

Better wear resistance and longevity when irradiated in air

1%

40/3168

Select Answer to see Preferred Response

bookmode logo Review TC In New Tab

The standard of care is irradiation of polyethylene (PE) in an inert gas (e.g. argon, nitrogen or vacuum packaging). Irradiation of PE in air (i.e. oxygen present) results in oxidized PE while irradiation in the absence of oxygen results in greater cross-linking.

The quoted studies by McKellop et al and Sychtez et al both demonstrate that irradiation in air results in early PE delamination and cracking and accelerated failure due to increased oxidation.

REFERENCES (2)
Authors
Rating
Please Rate Question Quality

4.3

  • star icon star icon star icon
  • star icon star icon star icon
  • star icon star icon star icon
  • star icon star icon star icon
  • star icon star icon star icon

(21)

Attach Treatment Poll
Treatment poll is required to gain more useful feedback from members.
Please enter Question Text
Please enter at least 2 unique options
Please enter at least 2 unique options
Please enter at least 2 unique options