The U.S. Food and Drug Administration (FDA) has announced the approval of a new 3D printed implant, the Patient Specific Talus Spacer from Additive Orthopaedics. The device is described by the FDA as “the first in the world and first-of-its-kind implant to replace the talus.”
The talus is the bone in the ankle that joins the leg and the foot. In particular, this world first could be used to treat avascular necrosis (AVN) of the ankle joint, in which bone tissue is destroyed by a lack of blood supply to the area. AVN is typically the result of an acute injury, such as a broken bone, or prolonged tissue damage. In joints, the cartilage that prevents bones from grinding against one another can degrade over time, resulting in arthritis and pain. In the case of the ankle, the talus may collapse and require the fusing of joints, which can reduce pain but makes movement of the joint impossible, or even amputation of the leg below the knee.
Now that there is a 3D printable implant to treat this problem, it may be used to replace other surgical interventions and spare the joint of people suffering from late-stage AVN. As the name suggests, the Patient Specific Talus Spacer is tailored to each patient based off of their computed tomography data. The damaged talus can then be replaced with a 3D printed, cobalt chromium replacement that perfectly fits the patient’s anatomy.Continue reading… “Additive Orthopaedics Gains FDA Approval for First 3D Printed Talus Implant”