Periprosthetic fracture of the acetabulum after total hip arthroplasty.

摘要: Eleven patients who had sustained a periprosthetic fracture of the acetabulum at mean 6.2 years (range, one month to thirteen years) after total hip arthroplasty were managed our institution between 1985 and 1991. Five medial wall; three, posterior column; two, transverse fracture; one, anterior column. Six fractures displaced by two millimeters or more. Eight caused blunt trauma fall, three occurred spontaneously. A was classified as type 1 if acetabular component clinically radiographically stable (eight patients) 2 unstable (three patients). One patient, type-2 column, died an associated intrapelvic vascular injury. The other with revision without supplemental plate fixation, immediately diagnosis fracture. eight type-1 initially limitation weight-bearing modification activity; in six these patients, united additional treatment. ten surviving followed for sixty-two months patients—including four whom non-operative treatment—had because pain, loosening, non-union time most recent follow-up. Two (one other, fracture) multiple revisions component; both internal fixation plate. All ultimately stable, functioning prosthesis. We conclude that are poor prognosis regard survival but it is possible achieve union salvage functional prosthesis have such