naa a22 4500 510822975 CHVBK 20180411083542.0 cr unu---uuuuu 180411e20131201xx s 000 0 eng 10.1007/s12541-013-0297-2 doi (NATIONALLICENCE)springer-10.1007/s12541-013-0297-2 A new patient-specific planning method based on joint contact force balance with soft tissue release in total knee arthroplasty [Elektronische Daten] [Huynh Minh, Won Park, Kyungsoo Kim, Seung-Woo Son, Sang-Hun Lee, Yoon Kim] Although the conventional total knee arthoplasty (TKA) planning used 2D or 3D images of the patient's lower extremity to determine bone alignment, it was shown that good bone alignment does not always guarantee successful results due to unbalanced joint contact forces and soft tissue tension. Thus, the joint contact force balance and soft tissue tension were pre-operatively calculated using finite element analysis (FEA). Although the results of FEA are accurate, the rigid body spring method (RBSM) has introduced for the joint contact force or pressure distribution due to the high costs for FEA. In this paper, an innovative method was described to quantify the pre- and post-operative knee contact force balance using various engineering techniques, including the free-form deformation (FFD) technique, and RBSM-based cartilage contact force and ligament tension estimation algorithm. Nine cases of TKA planning were performed with three different surgical options, including over-correction of the valgus ratio of the femur, tibial plateau cutting length, and MCL release to redistribute the medial and lateral contact force balance. This method is useful as a patient-specific preoperative planning tool in TKA surgery. Korean Society for Precision Engineering and Springer-Verlag Berlin Heidelberg, 2013 Knee nationallicence Total knee arthroplasty nationallicence Rigid body spring method nationallicence Surgical planning nationallicence Joint contact force nationallicence Biomechanics nationallicence Minh Huynh Department of Mechanical Engineering, Kyung Hee University, 1, Seocheon-dong, Giheung-gu, 446-701, Yongin, Korea aut Park Won Department of Mechanical Engineering, Kyung Hee University, 1, Seocheon-dong, Giheung-gu, 446-701, Yongin, Korea aut Kim Kyungsoo Department of Applied Mathematics, Kyung Hee University, 1, Seocheon-dong, Giheung-gu, 446-701, Yongin, Korea aut Son Seung-Woo Frontier Technology Institute, Hyundai Heavy Industry, 102-18, Mabuk-dong, Giheung-gu, 446-912, Yongin, Korea aut Lee Sang-Hun Frontier Technology Institute, Hyundai Heavy Industry, 102-18, Mabuk-dong, Giheung-gu, 446-912, Yongin, Korea aut Kim Yoon Department of Mechanical Engineering, Kyung Hee University, 1, Seocheon-dong, Giheung-gu, 446-701, Yongin, Korea aut International Journal of Precision Engineering and Manufacturing Springer Berlin Heidelberg 14/12(2013-12-01), 2193-2199 2234-7593 14:12<2193 2013 14 12541 https://doi.org/10.1007/s12541-013-0297-2 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s12541-013-0297-2 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Minh Huynh Department of Mechanical Engineering, Kyung Hee University, 1, Seocheon-dong, Giheung-gu, 446-701, Yongin, Korea aut NATIONALLICENCE 700 1- Park Won Department of Mechanical Engineering, Kyung Hee University, 1, Seocheon-dong, Giheung-gu, 446-701, Yongin, Korea aut NATIONALLICENCE 700 1- Kim Kyungsoo Department of Applied Mathematics, Kyung Hee University, 1, Seocheon-dong, Giheung-gu, 446-701, Yongin, Korea aut NATIONALLICENCE 700 1- Son Seung-Woo Frontier Technology Institute, Hyundai Heavy Industry, 102-18, Mabuk-dong, Giheung-gu, 446-912, Yongin, Korea aut NATIONALLICENCE 700 1- Lee Sang-Hun Frontier Technology Institute, Hyundai Heavy Industry, 102-18, Mabuk-dong, Giheung-gu, 446-912, Yongin, Korea aut NATIONALLICENCE 700 1- Kim Yoon Department of Mechanical Engineering, Kyung Hee University, 1, Seocheon-dong, Giheung-gu, 446-701, Yongin, Korea aut NATIONALLICENCE 773 0- International Journal of Precision Engineering and Manufacturing Springer Berlin Heidelberg 14/12(2013-12-01), 2193-2199 2234-7593 14:12<2193 2013 14 12541 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer