세라믹-세라믹 관절면을 이용한 인공 고관절 전치환술 후 발생한 알루미나 라이너의 조기 분쇄분절

Abstract

The authors experienced a case of early fracture of an alumina ceramic liner after ceramic-on-ceramic total hip arthroplasty, without any history of trauma. A 47-year-old male visited our center, due to a sudden crunching sound from the right hip at three weeks, after a ceramic-on-ceramic total hip arthroplasty for the osteonecrosis of right femoral head. Plain radiographs revealed multiple radio-opaque fragments around the displaced neck of the femoral stem. There were severely comminuted fracture of the ceramic liner with slight black staining of the surrounding tissue, and even damaged the surface of the ceramic head, on the operative field. The fractured liner and a damaged head were replaced with a new ceramic liner and head, after the removal of the fractured ceramic fragments, as completely as possible. Careful follow up with a caution for early ceramic liner fracture should be required in ceramic-on-ceramic total hip arthroplasty.