“…Implants in these optimal revision settings have shown excellent long-term survivorship ranging from 95% to 98% at 10 years [8,9,32]. Highly porous metal implants such as Trabecular Metal TM (TM) (Zimmer Inc, Warsaw, IN, USA) cups that offer improved bone ingrowth and biomechanical properties [3,5,14,21,33] have also shown encouraging results for acetabular revision [1,17,18,29]. However, it may be difficult or impossible to achieve stability, even with these highly porous metal implants, if the acetabular defect is large, bone quality is poor, there is limited host bone contact, or there is pelvic discontinuity.…”