At the age of 81, the patient was suffering from a Paprosky type 3B acetabular defect and already underwent hip revision surgeries prior to seeking the help of Mr. Dunlop. He is not alone, because data from joint registries show that 27% of the revisions is not an initial one and those re-revisions have a 3 times higher chance of failure compared to initial revisions. The previous revision reconstruction of this particular patient (cemented PE liner with cranial metal mesh) failed due to loosening of the cup and migration to the postero-cranial region. This resulted in a limited amount of bone stock, particularly in the postero-cranial region, which poses challenges towards creating a stable and lasting reconstruction of the acetabulum.
The value of 3D Planning and a 3D-Printed Hip implant
3D printing makes it possible to create very specific and complex shapes. This is therefore an ideal technique to design an implant that fully matches the patient anatomy. The intricate porous structure on the back of the aMace implant, that enables bone ingrowth, is another feature that can easily be achieved using 3D printing.
Enhance Patient Care with a patient-specific hip implant
Materialise offers 3D printing software and services, such as the patient-specific aMace hip implants.
When presented with bone defects, an aMace patient-specific implant is a unique way to match the medical considerations with the complex mechanical requirements of such an important moving part in the human body. It all starts with a CT scan. This allows the surgery to be properly planned, right down to finding the specific fixation points.
Each Materialise aMace implant comes with extensive 3D analysis. The thorough planning, together with the guides and models will help you to successfully perform your surgery. These services are based on the in-house expertise earned over more than 500 hip implants.