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KMID : 1137820110320020144
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의공학회지
2011 Volume.32 No. 2 p.144 ~ p.150
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The Motion Analysis of the Scaphoid, Capitate and Lunate During Dart-Throwing Motion Using 3D Images
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Park Chan-Soo
Kim Kwang-Gi
Kim Yu-Shin
Jeong Chang-Bu
Jang Ik-Gyu
Oh Su-Chan
Yu Do-Hyun
Baek Goo-Hyun
Lee Sang-Lim
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Abstract
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The primary purpose of this study was to analyze the motion of the scaphoid, capitate, and lunate during dart-throwing motion by three-dimensional modeling. Five series of CT images of five normal right wrists were acquired from five motion steps from radial extension to ulnar flexion in the dart-throwing motion plane. Segmentation and three-dimensional modeling of bones from CT images was performed using Analyze. Distances among centroids of the scaphoid, capitate and lunate and angles between principal axes of three carpal bones were calculated to analyze the motion by using MATLAB. As the wrist motion changed from radial extension to ulnar flexion, the distance between two adjacent bones decreased. The scaphoid and lunate rotated less than the capitates during dart-throwing motion. This study reports the Three-dimensional in vivo measurement of carpal motion using CT images.
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KEYWORD
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Carpal bone, Dart-throwing motion, Three-dimensional, CT images
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