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The JBJS Quiz of the Month is a collection of 10 relevant questions from each orthopaedic subspecialty. The questions are drawn from JBJS Clinical Classroom, which houses over 4,500 questions and 3,100 learning resources. Take the Quiz to see how you score against your peers!

NOTE: This quiz does not earn users CME credits. The questions must be answered within Clinical Classroom to earn CME credits.

Which of the following is the most common complication of an acetabular fracture?
  • Thrombosis
    • Thrombosis can occur after an acetabular fracture, but posttraumatic arthritis is the most commonly seen complication.

  • Osteonecrosis
    • Osteonecrosis can occur after an acetabular fracture, but posttraumatic arthritis is the most commonly seen complication.

  • Heterotopic ossification
    • Heterotopic ossification can occur after an acetabular fracture, but posttraumatic arthritis is the most commonly seen complication.

  • Posttraumatic arthritis
    • Posttraumatic arthritis is the most common complication seen after an acetabular fracture.

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