Papers by Author: Hwan Kim

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Authors: Jae Young Choi, Hwan Kim, J. Park, S. Chung, Hae Do Jeong, M. Kinoshita
413
Authors: Yoon Suk Kim, Hwan Kim, B.D. Yu, Duck Kyun Choi, Yong Chae Chung
1237
Authors: B.S. Jun, H.J. Park, Deug Joong Kim, Hyun Seung Ryu, Jun Hyuk Seo, Kug Sun Hong, Hwan Kim
151
Authors: Jae Hyup Lee, Hyun Seung Ryu, Jun Hyuk Seo, Hwan Kim, Kug Sun Hong, Bong-Soon Chang, Choon Ki Lee
Abstract: The purpose of our study is to compare the biodegradation and osteoconduction between CaO-SiO2-B2O3 glass-ceramics(CS10B) and hydroxyapatite(HA), tricalcium phosphate(TCP). Porous CS10B implants were prepared by polymer sponge method. Single-level posterolateral spinal fusions were performed on thirty rabbits. The animals were divided into three groups by implant material: HA, TCP and CS10B. Radiographs checked every two weeks. All animals were sacrificed 12 weeks after surgery. The proportion of the area occupied by ceramics in final radiography on the initial radiography was calculated. Uniaxial tensile strength was measured on 7 cases in each group. The proportion of the area of HA(88.7%±16.1) was significantly higher than those of the others(p<0.05), and the proportion of the area of CS10B(28.2%±9.3) was significantly lower than those of HA and TCP(37%±9.6)(p<0.05). The mean values of tensile strength of the HA(191.4±33.5 N) and CS10B(182.7±19.9 N) were significantly higher(p<0.05) than those of the TCP(141.1±28.2 N). CS10B showed the tensile strength of fusion masses similar to those of the HA, however, more rapid biodegradation than HA and TCP. These findings suggest that CS10B grafts have the possibility as a bone graft substitute.
905
Authors: Jun Hyuk Seo, Hyun Seung Ryu, K.S. Park, Kug Sun Hong, Hwan Kim, Jae Hyup Lee, D.H. Lee, Bong-Soon Chang, C.K. Lee
147
Authors: Hyun Seung Ryu, Jun Hyuk Seo, Hwan Kim, Kug Sun Hong, H.J. Park, Dae Joon Kim, Jae Hyup Lee, D.H. Lee, Bong-Soon Chang, C.K. Lee
261
Authors: K.S. Park, Hyun Seung Ryu, Jun Hyuk Seo, Kug Sun Hong, Hwan Kim, Jae Hyup Lee, D.H. Lee, Bong-Soon Chang, C.K. Lee
151
Authors: H.J. Park, B.S. Jun, Dae Joon Kim, Hyun Seung Ryu, Jun Hyuk Seo, Kug Sun Hong, Hwan Kim
959
Authors: Jun Hyuk Seo, Hyun Seung Ryu, Kug Sun Hong, Hwan Kim, Dae Joon Kim, Jae Hyup Lee, D.H. Lee, C.K. Lee
273
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