Impaction bone grafting with reinforcement metallic mesh and cemented cup for the treatment of Paprosky 3B acetabular defects
Depending on the bone defect, cup revision can be a highly complex operation. Cup loosening, produces cup migration and acetabular bone defects and the size of these bone defects will determine the technique used for acetabular cup revision. Migration of the cup also requires that to obtain a good clinical result, the center of rotation of the hip be reconstructed so the cup is played in the anatomic rotation center of the hip. The acetabular bone stock must be ideal to support the cup. There must be enough medial bone stock and supportive rims to obtain a long-term result.