PMC6079439_01
Anteroposterior (AP) pelvis and lateral right hip radiographs showing a posterosuperior dislocation of the right cemented femoral component with associated chronic greater trochanteric periprosthetic fracture and chronic left inferior pubic rami fracture.
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In the emergency department, initial radiographs revealed a right posterior hip dislocation, as well as chronic appearing fractures of the right greater trochanter and left inferior public rami (Figure 1).
Anteroposterior (AP) and lateral right hip radiographs, status post attempted closed reduction revealing right iatrogenic obturator hip dislocation with femoral component intrapelvic migration.
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After three attempts, post reduction radiographs were significant for a right inferior obturator hip dislocation (Figure 2).
Coronal, axial, and sagittal computed tomography (CT) images showing femoral component dislocation through the right obturator canal and abutting the urinary bladder.
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Computed tomography (CT) was performed, which confirmed a persistently dislocated femoral head with intrapelvic migration through the right obturator foramen (Figures 3 and 4).
Three-dimensional reformatted computed tomography (CT) images showing femoral component dislocation through the right obturator canal.
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Computed tomography (CT) was performed, which confirmed a persistently dislocated femoral head with intrapelvic migration through the right obturator foramen (Figures 3 and 4).
Anteroposterior (AP) pelvis radiograph, status post right hip open reduction, revision total hip arthroplasty with constrained liner and greater trochanteric hook plate with cerclage cables.
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A greater trochanteric hook plate with cerclage cables was then utilized for the fixation of the greater trochanteric fragment (Figure 5).
Anteroposterior (AP) and lateral right hip radiographs, seven months status post revision total hip arthroplasty with greater trochanter escape from hook plate.
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Radiographs showed greater trochanteric escape from the hook plate (Figure 6).
Anteroposterior (AP) pelvis radiograph, status post right hip irrigation and debridement, greater trochanter excision, hook plate, and cable removal of hardware.
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She then underwent irrigation and debridement with greater trochanter excision and hook plate removal (Figure 7).