Faculty Profiles - KOBAYASHI Koichi

Papers - KOBAYASHI Koichi

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Analysis of Patellofemoral Joint Contact Area Using Magnetic Resonance Imaging

SAKAMOTO Makoto, SHIMODA Masaru, KOBAYASHI Koichi, YOSHIDA Hidenori, TANABE Yuji

日本臨床バイオメカニクス学会誌 = Proceedings of ... Annual Meeting of Japanese Society for Clinical Biomechanics and Related Research 28 161 - 166 2007.11

Development of computer-assisted Total Hip Arthroplasty : New method for femur component setting

KAI Shin, TANABE Yuji, KOGA Yoshio, SATO Takashi, WATANABE Satoshi, KOBAYASHI Koichi, MINATO Izumi, SEITOKU Norio

日本臨床バイオメカニクス学会誌 = Proceedings of ... Annual Meeting of Japanese Society for Clinical Biomechanics and Related Research 28 263 - 268 2007.11

Accuracy of 3-D pose estimation of bone using an image matching technique with fluoroscopic images and 3-D bone model

TANAKA Nobuaki, KOBAYASHI Koichi, TANABE Yuji, SATO Takashi, WATANABE Satoshi, KOGA Yoshio, OMORI Go, SAKAMOTO Makoto, SEITOKU Norio

日本臨床バイオメカニクス学会誌 = Proceedings of ... Annual Meeting of Japanese Society for Clinical Biomechanics and Related Research 28 335 - 339 2007.11

Accuracy improvement of the cup-position setting of total hip arthroplasty in an arthroscopic image-based assistance system

TAKEDA Yuya, KOGA Yoshio, MINATO Izumi, TANABE Yuji, HAYASHI Toyohiko, KOBAYASHI Koichi

日本臨床バイオメカニクス学会誌 = Proceedings of ... Annual Meeting of Japanese Society for Clinical Biomechanics and Related Research 28 275 - 279 2007.11

Evaluation of CT Slice Effect on Surface Modeling for Three-Dimensional Lower Extremity Alignment Assessment

YAMAZAKI Yoshihiro, SAKAMOTO Makoto, KOBAYASHI Kouichi, TANABE Yuji, SATO Takashi, WATANABE Satoshi, KOGA Yoshio, SEITOKU Norio

日本臨床バイオメカニクス学会誌 = Proceedings of ... Annual Meeting of Japanese Society for Clinical Biomechanics and Related Research 28 369 - 373 2007.11

Accuracy of three-dimensional surface models of the knee reconstructed from magnetic resonance imaging

SASAGAWA Keisuke, WATANABE Satoshi, KOBAYASHI Koichi, SAKAMOTO Makoto, SATO Takashi, KOGA Yoshio

日本臨床バイオメカニクス学会誌 = Proceedings of ... Annual Meeting of Japanese Society for Clinical Biomechanics and Related Research 28 349 - 354 2007.11

Experimental research into a method of assisting total knee arthroplasty

MIZUOCHI Yusuke, KAI Shin, KOGA Yoshio, SATO Takashi, WATANABE Satoshi, TANABE Yuji, KOBAYASHI Koichi, SEITOKU Norio

日本臨床バイオメカニクス学会誌 = Proceedings of ... Annual Meeting of Japanese Society for Clinical Biomechanics and Related Research 28 219 - 223 2007.11

The elastic contact between a circular rigid punch and a transversely isotropic layer bonded to a rigid foundation Reviewed

SAKAMOTO Makoto

Theoretical and Applied Mechanics 56 15 - 28 2007.10

The effects of strain rate and low-gamma irradiation on the compressive properties of UHMWPE. Reviewed

Kobayashi K, Kakinoki T, Sakamoto M, Tanabe Y

Bio-medical materials and engineering 17 ( 2 ) 87 - 95 2007

Accuracy of the 3D-pose estimation using fluoroscopic images of total knee arthroplasty

KOBAYASHI Koichi, SATO Takashi, OMORI Go, KOGA Yoshio, SAKAMOTO Makoto, TANABE Yuji

日本臨床バイオメカニクス学会誌 = Proceedings of ... Annual Meeting of Japanese Society for Clinical Biomechanics and Related Research 27 225 - 229 2006.10

Measurements of Viscoelastic Properties of Cortical Bone Using Dynamic Nanoindentation

SAKAMOTO Makoto, MURATA Fuyuki, IWATA Takayuki, KOUDA Fumikazu, KOBAYASHI Koichi, OMORI Go, TANABE Yuji, HARA Toshiaki

日本臨床バイオメカニクス学会誌 = Proceedings of ... Annual Meeting of Japanese Society for Clinical Biomechanics and Related Research 27 53 - 59 2006.10

Quantitative Evaluation of Water Content in Articular Cartilage Using Near Infrared Spectrometer

HAMADA Kazunari, TANABE Yuji, KIKUCHI Tatsuya, KOBAYASHI Koichi, SAKAMOTO Makoto, KOGA Yoshio

日本臨床バイオメカニクス学会誌 = Proceedings of ... Annual Meeting of Japanese Society for Clinical Biomechanics and Related Research 27 35 - 38 2006.10

New method of controlling cup setting of total hip arthroplasty using an arthroscopic image matching

SHIMURA Masashi, KOGA Yoshio, OMORI Go, MINATO Izumi, SATO Takashi, KOBAYASHI Koichi, SEITOKU Norio, NAKAMURA Yasuo, HAYASHI Toyohiko

日本臨床バイオメカニクス学会誌 = Proceedings of ... Annual Meeting of Japanese Society for Clinical Biomechanics and Related Research 27 247 - 252 2006.10

The axisymmetric problem of an elastic layer indented by an infinite rigid punch with a circular hole Reviewed

Sakamoto M, Kobayashi K

Theoretical and Applied Mechanics 55 61 - 71 2006.10

Analysis of Tibio-Femoral Joint Kinematics and Contact Area Using MRI

Yoshida Hidenori, Watanabe Keichi, Tanabe Yuji, Kobayashi Koichi, Sakamoto Makoto

実験力学 6 ( 1 ) 31 - 35 2006.3

Language：Japanese

This study analyzed tibio-femoral joint kinematics and contact area during knee flexion at 0ｰ, 30ｰ, 60ｰ, 90ｰ and 135ｰ using magnetic resonance imaging with a 3D-fat-suppressed fast low angle shot sequence (3D-FLASH). At a 200N loading situation, knee flexion angles were chosen to be 0ｰ, 30ｰand 60ｰ. Sagittal and coronal images were obtained under the loading and unloading situations from 6 healthy male Japanese volunteers. At unloading situation, from 0ｰ to 90ｰ the centroids of the medial and lateral contact areas translated backward and outside. From 90ｰ to 135ｰ the centroids of the medial and lateral contact areas translated backward and inside. The contact areas tended to decrease, but from 60ｰ to 135ｰ knee flexion the medial contact area was not changed generally. At loading situation, almost the same results as observed at unloading situation for each translation were obtained. However, the translation of centroids of the medial and lateral contact areas decreased with an increase of knee flexion, and the centroids moved roughly straight backward as well. The contact areas increased at each knee flexion angle as compared to unloading situation. These results showed good correlation with previous ones found in the other studies of knee kinematics.

DOI： 10.11395/jjsem.6.31

CiNii Article

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Analysis of tibio-femoral joint kinematics and contact area using MRI

H. Yoshida, Y. Tanabe, K. Kobayashi, M. Sakamoto

PROCEEDINGS OF THE 5TH WORLD CONGRESS OF BIOMECHANICS 6 ( 1 ) 139 - + 2006

Language：English Publishing type：Research paper (international conference proceedings) Publisher：MEDIMOND S R L

This study analyzed tibio-femoral(TF) joint kinematics and contact area(CA) during knee flexion at 0 degrees, 30 degrees, 60 degrees, 90 degrees and 135 degrees using MRI. At a 200N loading situation, knee flexion angles were chosen to be 0 degrees, 30 degrees and 60 degrees. At unloading situation, from 0 to 90 the centroids of the medial and lateral CAs were translated backward and outside. From 90 degrees to 135 degrees, the centroids of both CAs translated backward and inside. The CAs tended to decrease, but from 60 degrees to 135 degrees knee flexion the medial CA was not changed generally. At loading situation, almost the same results as observed at unloading situation for each translation were obtained. However, the translation of the centroids of both CAs decreased with an increase of knee flexion. The CAs increased at each knee flexion angle as compared to unloading situation.

DOI： 10.11395/jjsem.6.31

Web of Science

CiNii Article

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Relationship between viscoelastic properties and composition of dentin

HASEGAWA Hiroshi, KOBAYASHI Koichi, SAKAKI Jun, KOUDA Fumikazu, KUROE Toshifumi, OHATA Noboru, TANABE Yuji, SAKAMOTO Makoto

接着歯学 = Adhesive dentistry 23 ( 4 ) 269 - 269 2005.12

Analysis of load-speed dependence of mechanical properties in human root dentin

HASEGAWA Hiroshi, KOBAYASHI Koichi, SAKAI Jun, KODA Fumikazu, KUROE Toshifumi, OHATA Noboru, TANABE Yuji, SAKAMOTO Makoto

北海道歯学雑誌 26 ( 2 ) 237 - 245 2005.12

Determination of Mechanical Properties of Articular Cartilage at High Strain Rate Using the Split-Hopkinson Pressure-Bar Technique

KAKINOKI Toshihiko, KOBAYASHI Koichi, SAKAMOTO Makoto, WAKUI Takashi, TANABE Yuji, KIKUCHI Tatsuya, OMORI Go, KOGA Yoshio

日本臨床バイオメカニクス学会誌 = Proceedings of ... Annual Meeting of Japanese Society for Clinical Biomechanics and Related Research 26 65 - 70 2005.10

Radiographic assessment of trabecular structure around total knee arthroplasty

KOBAYASHI Koichi, SAKAMOTO Makoto, TANABE Yuji, OMORI Go, KOGA Yoshio

日本臨床バイオメカニクス学会誌 = Proceedings of ... Annual Meeting of Japanese Society for Clinical Biomechanics and Related Research 26 41 - 46 2005.10

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Papers - KOBAYASHI Koichi