We present the results of cementless total hip arthroplasty using anatomically adapted stem and hemispherical cup with a fully coated Spongiosa metal surface, first introduced in 1982, which aims to achieve a surface structure approaching that of human cancellous bone. This implant is still being used in clinical practice with minor modifications. The aim of the study is to determine the long-term outcomes of spongiosa-I metal surface hip arthroplasty over minimum of twenty years follow-up.Background
Aim