Automatic Measure the Dynamic Distance Between the Mass Center of Lunate and Capitate by Using Computed Tomography

• Main Authors: Chung, Sung Ming, 鄭松銘
• Other Authors: M. C. Wu, J. H. Chuang
• Format: Others
• Language: zh-TW
• Published: 1996
• Online Access: http://ndltd.ncl.edu.tw/handle/49428112095743491036

碩士 === 國立交通大學 === 工業工程研究所 === 84 === The wrist joint, although extremely mobile in all three plans of space, is neverthless able to support several times the bodyweight without damage. Its archchitecture, base on eight bones and a special ligamentous bonding,is very complex but guarantees stability under all circumstances. In the past, the researches on the biomechanics of the wrist were mainly based on the two dimensionalanalysis of positional changes of carpal bones. Three dimensional measurementof carpal bones during wrist motion were not elucidated. The purpose of this study is to develop a new system to elucidate this problem. In this study, we proposed a method to measure the movement between lunate and capitate. This method combines the information of both static computed tomography and uhe dynamic computed tomography, then integrate the image processing and coordinate translational technique. This method measure the dynamic distance between lunate and capitate automatically by implement on IRIS in C language. By using this method, we describe the changes in relative position in mass center of the lunat e and capitate during dynamic motion of the carpal bones.The changes in relative position of mass center clearly represent the motion of carpal bones durion wrist movement. Experiment result how that the method can measure the dynamic distance of carpal bones correctly. The method has a great potential on the s tudy of the wrist biomechanics.