Fig. 1
From: Multicup reconstruction technique for the management of severe protrusio acetabular defects
A 60-year-old female patient sustained a loosening cup. A A Paprosky IIC defect. B The “cup-in-cup” reconstruction technique with 3 porous shells (out diameters of the shells from medial to lateral: 70 mm; 64 mm; and 58 mm). The center of rotation of the hip was restored