PMC5723947_01
Displaced right acetabular fracture dislocation with anterior column fracture associated with a central migration of the right femoral head.
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fig1
3D reconstruction showing the medial dislocation with entrapment of the femoral head.
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fig2
It showed that the femoral head-neck junction was entrapped through the hiatus created by the medially displaced quadrilateral surface between the anterior and posterior columns (Figure 2).
Postoperative AP pelvic X-ray showing adequate open reduction internal fixation.
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fig3
Immediate post-op AP pelvis X-ray showed adequate reduction and fixation of the fracture dislocation (Figure 3).
Medial displacement of both the quadrilateral surface and femoral head resulting in focal joint space narrowing at the superomedial joint surface.
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fig4
Anteroposterior radiographs of the pelvis and lateral radiographs of the hip were obtained and showed a millimetric medial displacement of both the quadrilateral surface and femoral head resulting in focal joint space narrowing at the superomedial joint surface (Figure 4).
Terminal right hip osteoarthritis.
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fig5
On follow-up radiographs, the patient was found to have progression of joint degeneration till reaching, after two years, a severely degenerated joint with joint space narrowing and femoral head sclerosis with possible avascular necrosis (Figure 5).