29 July 2025

Mitchell Greenberg Advances 3D-Printed Bone Implant Design in Preclinical Study

Geneva-supported research targets improved healing for complex femoral fractures

Solving a Persistent Challenge in Orthopedic Trauma

Despite advances in orthopedic care, nonunion fractures, where broken bones fail to heal correctly, remain a serious complication, particularly after femoral shaft injuries. Traditional implants, such as solid intramedullary nails, may offer stability but can inadvertently reduce the mechanical stimuli necessary for bone regeneration.

In a recent study, Mitchell Greenberg, Geneva Associate Investigator, co-authored research focused on computationally designed, 3D-printed implants engineered to optimize both mechanical support and biological healing. The study, “A Computationally-Designed 3D Printed Segmental Defect Implant for Optimized Mechanobiologic Performance Under Simulated Physiological Loads,” was conducted using a large animal (sheep) model.

Engineering for Better Fusion

Using finite element modeling and 3D printing, the team developed implants with customized stiffness profiles designed to encourage osteointegration and reduce the risk of nonunion. The devices were evaluated under simulated physiological loading conditions to test their biomechanical performance.

The research supports growing evidence that implant design directly affects healing outcomes, suggesting that future orthopedic devices could be personalized not only by anatomy but also by how they interact with healing bone.

Supporting Innovation in Military Orthopedics

By reducing nonunion rates and improving recovery outcomes, studies like this have the potential to transform orthopedic care for service members who suffer complex musculoskeletal injuries in combat or training environments.

Geneva provided research management and programmatic support, helping advance this translational study toward future clinical applications.

Visit our website to learn more about Geneva’s work in operational medicine, including research in orthopedic and regenerative medicine.