Fig. 4

Radiographs show A proximal femoral bone defects (Paprosky IIIB in the right hip and IIIA in the left hip) in a 45-year-old female patient with aseptic loosening, B, C the fixed cementless alpha-conserve type I stem without radiolucent lines, osteolysis, or migration at 3- and 60-month follow-up