The current study evaluated the outcome of a retrospective series of 37 revision total hip arthroplasties with severe acetabular bone defects reconstruction using an antiprotrusio cage. We aimed to compare the peri and postoperative complications and mid-term outcomes of two groups, a reconstruction using a dual mobility cup (DMC) cemented into the cage (n=14) or a cemented simple polyethylene cup (SPEC) (n=23) at a mean follow-up of 5 years. We found an inverse association between the use of DMCs and both dislocation rate (p<0.05) and dislocation undergoing revision (p <0.05). No aseptic loosening was found in the DMC-group and there were no differences in the rest of the complications between the DMC-group and the SPEC-group (p>0.05). In conclusion, DMCs demonstrated excellent results at mid-term follow-up in terms of prevention of instability and stable cemented fixation.