Yonsei University · Medicine
Professor Kyoung-Tak Kang's research lab specializes in computational biomechanics and patient-specific orthopedic implant design, focusing on improving the long-term performance and biocompatibility of knee arthroplasty and ligament reconstruction. The lab employs advanced finite element modeling, probabilistic sensitivity analysis, and in vivo imaging to evaluate implant kinematics, wear behavior, and surgical outcomes under patient-specific anatomical and loading conditions. Key research directions include optimizing prosthesis design through material selection (e.g., UHMWPE, PEEK, CFR-PEEK), enhancing surgical techniques for complex knee injuries (e.g., posterior cruciate ligament and posterolateral complex injuries), and individualizing implant parameters such as tibial slope for improved joint stability and longevity. The lab emphasizes integrating clinical imaging with computational simulation to guide personalized treatment strategies and reduce implant failure.
Figures are computed from collected data and may differ slightly.
The results of this study confirm that the ALL is an important lateral knee structure for knee joint stability. The ALL is a secondary stabilizer relative to the ACL under simulated gait and squat loading conditions.Cite this article: <i>Bone Joint Res</i> 2019;8:509-517.
Our study suggests that neutral alignment or less than 3° tibial varus-femoral valgus alignment in the coronal plane can be recommended in medial UKA to reduce the postoperative complications and to enhance the life expectancy of implants.
Life expectancy is on the rise and, concurrently, the demand for total knee arthroplasty (TKA), which lasts a lifetime, is increasing. To meet this demand, improved TKA designs have been introduced. Recent advances in radiography and manufacturing techniques have enabled the production of patient-specific TKA. Nevertheless, concerns regarding the wear performance, which limit the lifespan of TKA, remain to be addressed. This study aims at reducing the wear in patient-specific TKA using design op
Medical imaging based on computed tomography with the laxity test allowed us to measure not only the precise translation but also the rotation of the knee joint. This methodology will be beneficial in the validation of laxity tests for subject- or patient-specific computational models.
The purpose of this study is to investigate post-cam design via finite element analysis to evaluate the most normal-like knee mechanics. We developed five different three-dimensional computational models of customized posterior-stabilized (PS) total knee arthroplasty (TKA) involving identical surfaces with the exception of the post-cam geometry. They include flat-and-flat, curve-and-curve (concave), curve-and-curve (concave and convex), helical, and asymmetrical post-cam designs. We compared the
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