PMC4275803_01
Plain radiographs, anterior-posterior view of pelvis. Dislocated hip upon admission to hospital with pronounced cement rim seen on inferior aspect of acetabulum.
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Radiographs confirmed a posterior dislocation with no associated bony injury (Fig. 1).
Mobile intensifier image of hip joint after attempted closed reduction. Non-concentric reduction, cement fragment seen within acetabulum.
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However, intraoperative radiographs revealed a non-concentric reduction i.e. the prosthetic femoral head was not fully engaged within the acetabular component (Fig. 2).
Computed tomography slice showing cement fragment between articulating surfaces.
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Computed-tomography subsequently confirmed the intra-articular presence of a 10 mm x 5 mm fragment of bone cement blocking reduction (Fig. 3).
Intraoperative view of cement fragment within acetabulum.
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She subsequently underwent open reduction and retrieval of the loose cement fragment through a posterior approach (Figs. 4 and 5).
View of removed cement fragment supported by surgeon's finger.
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She subsequently underwent open reduction and retrieval of the loose cement fragment through a posterior approach (Figs. 4 and 5).