Custom Trabecular Titanium Implants

Using technology to reconstruct massive acetabular defects

There is no gold-standard of care for reconstructing acetabular defects defined as Paprosky 3B or greater. Often these defects are deemed non-reconstructable, leaving the patient with a girdle stone. Advances in thin slice metal artefact reduction CT have allowed for computerised modeling of these defects. Such models can be used by engineers and surgeons to design custom implants. Additive manufacturing allows the accurate production of bespoke titanium implants with integral porosity with the aim of achieving a perfect fit and improved osseointegration.

Additionally, this method of producing acetabular implants allows for the production of simple patient specific implants and patient specific models to help the surgeon intraoperatively. The 3D computerised models of the patients anatomy and the 3D models of the implants can be printed in plastic, sterilised, and used within theatre to help guide the surgeon. Click on the link to see how these plastic models are used to direct the surgeon in implanting the custom components; this is important when operating with complex anatomy - Take me to the video.