Novel Low-cost Model for Knee Dislocations and Reductions (1090-004313)
CE Hours: 0.25 Session Type: SimVentors
Knee dislocations are rarely presented in the emergency department, occurring in only 0.02% of orthopedic injuries. Unlike other major joints, the knee is unstable in multiple directions with 50% of dislocations anterior and 40% posteriorly. Emergent closed knee reduction is crucial for limb revascularization as 25% of dislocations are associated with popliteal artery injury. There is additional risk of peroneal nerve injury occurring in 25% of cases, compartment syndrome, and long-term morbidity such as arthritis, joint stiffness, and joint instability. In practice, it is important for providers to become adept at appropriate reduction technique and identification of successful reduction. Herein, we devise a low-cost, reusable model for simulated multi-directional knee reduction. The aimed application of this model is for residents in the training environment and as in-servicing for continuing medical education. At the time of this design, currently there is no literature to describe task trainers to simulate knee dislocations and reductions.Through this model, trainees will be able to assess and improve upon their reduction technique for knee dislocations. Specifically, it will allow for assessment of appropriate traction force applied, as well as the tactile feedback for successful reduction. Additionally, the model may be used to trial alternative reduction techniques, allowing practitioners to become confident using other approaches. Multidisciplinary use of this simulation model would be broad, as practitioners in emergency medicine, orthopedics, sports medicine, and primary care may benefit from its application. Cost: oak closet pole $27, skin tape $35, foam padding $25, screws <$1, hospital tourniquet bands $25, 3D printing resin $50. The skin tape, foam padding, wooden pole, and 3D printing materials will be sufficient for multiple model creations or use on other simulation model designs. The 3D printer will be used to create the articulating surface of the knee joint. Active time for model creation: One hour Tools: Saw, Screwdriver, 3D printer. The 3D printer is publicly accessible at local libraries, with joint surfaces created from online free open access design and software. The option to purchase a 3D printer for departmental use is an alternative option. We anticipate that the model would be created once and can be reused multiple times for teaching sessions.