李亮　   赵阳　  王志强

     To review the application effects of the porous tantalum acetabular cup in acetabular revision for acetabular failure after total hip arthroplasty ( THA ). The related literatures about the characteristics of porous tantalum and its application in acetabular revision in recent 10 years were retrieved from China National Knowledge Internet ( CNKI ) and PubMed databases, and a review was made. The porous tantalum acetabular cup had unique high porosity, low elasticity, high friction coefficient and good function to promote bone ingrowth inwardly. Good clinical results could be obtained using the porous tantalum acetabular cup in acetabular revision for patients with initial fixation failure using the artificial acetabular cup. In acetabular revision, the porous tantalum acetabular cup can provide superior mechanical stability, with good early and medium-term results.