Acute periprosthetic fracture of the acetabulum associated with osteolyticpelvic lesions - A report of 3 cases

Three cases of acute acetabular fracture around uncemented porous-coated ac etabular components associated with osteolytic lesions of the pelvis are re ported. In each case, the fracture occurred through an area of severe osteo lysis that contributed to the structural failure of the pelvis. None of the fractures were associated with significant trauma, and none of the implant s demonstrated evidence of loosening before the fracture. When marked pelvi c osteolysis develops around the acetabular component of a total hip arthro plasty, the possibility of pelvic fracture must be considered. Total hip ar throplasty patients with osteolysis should be followed with radiographs at regular and frequent intervals. When osteolysis progresses, early intervent ion should be strongly considered because appropriate treatment may prevent fracture occurrence.