Development of Bioinformed Platform for Realistic Joint Reduction Training

M. Patterson, D. Remer, M. DeWitt, K. Virgilio, C. Tison
Luna Innovations, United States

Keywords: Dislocation, Training, Medical Simulation, Orthopedic

Medical simulation bridges the gap between classroom presentation and clinical training with human patients. One area in which training platforms are particularly lacking is joint dislocation. The military experiences a higher rate of dislocations than civilians, but for all doctors, the first time a physician performs a joint reduction is on an actual patient. To address the need for a biofidelic joint reduction trainer platform, Luna is developing a platform technology known as the “JoRT” that provides realistic anatomy and reduction forces. In addition to the actual platform, a unique development process allows rapid and biologically informed modeling, prototyping, and production of low-cost trainers. To date, Luna has designed, assembled, and evaluated five generations of prototypes. We modeled an anterior shoulder dislocation/reduction compatible with the “Milch” technique, and clearly demonstrated function in a biofidelic manner. Inductive sensors were also integrated to provide guidance on successful reductions. When reductions were not performed appropriately, Luna’s “dislocation cup” eased the humerus back into the dislocated position. This behavior was confirmed by computational modeling and demonstrated that negative training would be prevented. Luna’s biofidelic JoRT platform ensures that physical appearance, anatomical markers, and biofidelic behavior of the reduction are all obtained.