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Review Question - QID 6173

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QID 6173 (Type "6173" in App Search)
Figure 8 shows the radiograph of a 76-year-old man who has knee pain and swelling. History reveals that he underwent total knee arthroplasty 18 years ago. What is the most likely diagnosis?
  • A

Loose femoral component

2%

12/717

Loose tibial component

4%

28/717

Particle-mediated osteolysis

10%

75/717

Polyethylene failure

82%

586/717

Infection

1%

10/717

  • A

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The radiograph reveals complete loss of joint space with particulate metal debris consistent with total polyethylene failure and metal-on-metal articulation. The components appear to be well fixed and minimal osteolysis is evident.

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