The use of hydroxyapatite on press-fit tapered femoral stems.

Overview

The advantage of an HA coating includes superior proximal femoral osteointegration and reduced thigh pain, reduced subsidence risk, reduced distal wear particle migration, and better preservation of periprosthetic bone quality. Furthermore, the survivorship and clinical outcomes are at least comparable to cemented and uncoated uncemented systems without any substantial deleterious effect of the HA coating like third-body wear or late failures. In our opinion, these advantages justify the increased cost. With over 20 years of favorable cumulative data, the continued use of HA can be recommended as an effective and reliable adjunct to cementless tapered femoral fixation in primary THA.