3D interactive trace teaching system with anatomical model

Total knee arthroplasty (TKA) is an effective surgical treatment for the knee osteoarthritis, and is currently performed about 50,000 per year in Japan. TAK minimally invasive surgery (TKA-MIS) is a smaller incision range than TKA, and can expect an early recovery and post-surgical pain reduction. The navigation system for the purpose of precision improvement and shortening of the operative time operated on has been already studied. However, a study for the instruction system to improve the skill of surgeons has not yet advanced. This study aims to develop a training system which can makes non-expert surgeon improved the skill by simulating the TKA-MIS. The proposed method developed a simulator for the knee model with a three-dimensional electromagnetism sensor. The experiment established an evaluation method for the skin incision by tracing a sham scalpel trace. The developed system was applied to one non-experts. In the experimental results, non-teaching case was 65.80+/−7.00; teaching case, 83.44+/−11.04 (p = 0.00 < 0.05, student t-test). The experimental result leads to the conclusion that the proposed training system has the learning effect.