Asymptomatic Periprosthetic Joint Infection of the Hip with High-Virulence Pathogens: Report of Two Cases

Figure 1

Anteroposterior and axial radiographs of the left hip from case one at the time of the dislocated stress fracture of the femoral neck (a) on the second postoperative day after hybrid THA (b) and at the one-year mark (c) Several months after untreated acute PJI with S. aureus the implants are well fixed, in particular, the cup is fully integrated. Note thinning out of the cancellous bone in the proximal femur as well as of the cortical bone on the femoral diaphysis, with an enlarged medullary cavity, indicating osteoporosis. The patient suffered from refractory anorexia nervosa.