Design Criteria for Cementless Total Hip Arthroplasty: A Retrospective Study from Cadaver Implantation

Total hip arthroplasty (THA) is the most frequent arthroplasty procedure performed worldwide including in Indonesia. To support Indonesian government initiative to establish a generic domestic THA implant, Research Center for Metallurgy and Materials - Indonesian Institute of Sciences in cooperation with Universitas Indonesia has designed and realized set of cementless titanium-based THA implant. Here we reported the result of first cadaver implantation for cementless titanium-based THA implant in Indonesia. There are three sets of cementless titanium-based THA implants implanted into the left leg of three cadavers. Implantation was performed simultaneously by three groups of orthopedic surgeons. There are three major aspects as evaluation from the cadaver implantation: design, material, and instrumentation. The current cementless titanium-based THA implant was designed based on the same template, material specification, process, and implanted using standard commercial instrumentation. As further directives, it is required to develop the cementless titanium-based THA implants with various shape and sizing in regard of Indonesia domestic requirement, appropriate coating for cementless implantation, refined material properties to facilitate the fabrication process, and customized instrumentation as a whole set of development within the development of the cementless titanium-based THA implant.