Alumina Ceramic-on-Highly Cross-Linked Polyethylene Bearing in Cementless Total Hip Arthroplasty in Young Patients with Osteonecrosis of Femoral Head

Abstract

Introduction: Although total hip arthroplasties have been extremely successful, survivorship of total hip arthroplasties in young patients with osteonecrosis of femoral head has been limited by aseptic loosening and osteolysis secondary to wear and particulate polyethylene debris. Over the last decade, great interest has been shown in the development and use of ultrahigh molecular weight polyethylene to improve wear performance. We asked whether cementless total hip arthroplasties using alumina ceramic-on-highly cross-linked polyethylene bearings would improve hip score and functional activity and reduce incidence of polyethylene wear, osteolysis, and aseptic loosening.