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Review Question - QID 8401

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QID 8401 (Type "8401" in App Search)
What factor is associated with a high risk for developing pseudotumors after metal-on-metal hip resurfacing?

Large-diameter components

44%

282/641

Age 40 or older for men

8%

52/641

Age 40 or younger for women

46%

298/641

Diagnosis of primary osteoarthritis

1%

6/641

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The recent experience of a large clinical cohort revealed the most likely risk factors as female gender, age younger than 40, small components, and the diagnosis of hip dysplasia causing osteoarthritis. Failure was least likely among men and procedures involving larger components. These data have prompted some authors to caution against use in women and to primarily target candidates who are men younger than age 50. Small components may be more prone to failure because of malpositioning and edge loading, which have been noted to be more common in dysplasia cases.

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