The Faculty of Engineering, Universitas Indonesia (FTUI), through the RCBE-IBB unit, held a seminar featuring Prof. Yeon Soo Lee from the Catholic University of Daegu, South Korea. Prof. Lee delivered a presentation on Orthopedic Biomechanics titled “Locking Head Screw Mechanics for Bone Fracture Fixation and the Development of AI-Based Diagnosis Devices.” The seminar took place on Tuesday (June 17) at the Auditorium, 2nd Floor, IDE Building, FTUI.
Prof. Lee began the seminar by discussing posterior capsular plication simulation. He introduced a simulation device called the Shoulder Tester to explain how the local coordination system functions.
He then elaborated on the Double-Lead Screws for Locking Plate Fixation. In this section, Prof. Lee demonstrated how Double-Lead Screws can provide compression between the plate and the bone, resulting in a stronger fixation compared to Single-Lead Screws.
Furthermore, Prof. Lee shared his research aimed at determining the optimal pitch ratio of Double-Lead Screws for humeral head repair. The findings showed that the ideal pitch ratio is 1.25/0.82.
In the concluding part of the seminar, Prof. Lee presented the Artificial Intelligence-based Human Joint Motion Analysis System for Doctor’s Office Space. He emphasized that human motion analysis plays a crucial role in musculoskeletal rehabilitation and assessing treatment effectiveness.
“Motion analysis is typically conducted using 3D motion capture equipment, but recently, with the advent of AI technology known as Human Pose Estimation, joint tracking can be performed using standard cameras. Human Pose Estimation can produce more accurate motion analysis results when used with stereo camera systems, although the accuracy varies depending on the angle and distance between the cameras. While some studies have explored these parameters, they remain insufficient,” explained Prof. Lee.
In his research, Prof. Lee and his team successfully determined the optimal configuration of stereo cameras for Human Pose Estimation in a clinical setting. Moreover, they demonstrated that high-performance 3D motion capture is possible using RGB cameras. Prof. Lee also suggested that motion capture research via Human Pose Estimation could be conducted in virtual environments using rendering software such as Mixamo and Blender 3D.
Dean of FTUI, Prof. Kemas Ridwan Kurniawan, S.T., M.Sc., Ph.D., stated, “This seminar provided invaluable insights into research and development in orthopedic biomechanics, as well as the application of artificial intelligence in human motion analysis. The material presented by Prof. Yeon Soo Lee opens new perspectives that align with RCBE-IBB FTUI’s research development goals. We look forward to potential collaborations between RCBE-IBB and Prof. Lee’s team to foster innovations in biomedical engineering.”
Prof. Yeon Soo Lee is a lifetime member of the Korean Society of Mechanical Engineers (KSME). In 2019, he served as President of the BioMedical Engineering Division of KSME. He is also a permanent member of the Korean Orthopaedic Research Society (KORS), the Orthopaedic Research Society (ORS) in the USA, and the Korean Shoulder and Elbow Surgery (KSES).
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Faculty of Engineering Universitas Indonesia
