Medical Must-See: Replacement hip hops to new location

It is only the fourth reported case of complete intrapelvic cup migration where the protruded cup was not retrieved.
Postoperative radiograph following acetabular reconstruction while maintaining the protruded cup.

Nine years after a revised total hip arthroplasty, an 84-year-old patient found herself back in hospital with an “extremely rare” case of intrapelvic cup migration, Greek doctors report.

The elderly woman presented to the Patras University Hospital complaining of right hip pain and an inability to bear weight that had steadily deteriorated over a three-month period.

She had no physical trauma but had had a total hip replacement at age 24 due to congenital hip dysplasia, followed by two revision surgeries in her 50s and 70s due to aseptic component loosening.

After the second revision surgery, she was able to walk with assistance but had persistent mild right hip pain, her doctors wrote in Cureus.