3D Printing Researchers Aim to Improve Hip & Knee Replacement

Washington State University researchers are working to improve materials used in hip and knee replacements so that they last longer and allow patients to quickly get back on their feet after surgery.

Led by Susmita Bose, professor in the School of Mechanical and Materials Engineering, the researchers have received a five-year, $1.8 million National Institutes of Health grant to improve the way bone implants integrate into the body.

Better bone-like material the goal
Every year, approximately 1 million hip and knee replacement procedures are done in the U.S. State-of-the-art titanium replacements are generally affixed using acrylic bone cement. Patients are often out of bed and walking within a day or two of surgery.

But the materials used are foreign to the human body and don’t bond strongly to surrounding tissues, resulting in typical implant failure within 10-15 years. This becomes problematic for younger patients or those who need revision surgeries. … (Read more)

Source: Engineering.com