| Summary: | 碩士 === 國立成功大學 === 醫學工程研究所碩博士班 === 96 === Traditional radiographic measures of the lower limb to indicate abnormal loading are common and critical. To improve the quality, every effort is made to maintain a standardized position and reduce the inconsistency from inter- and intra-observer variances. Unfortunately, many other factors still alter the accuracy and reproducibility. Besides, only few data are available from traditional radiographic two dimensional measurement and clinicians couldn’t have the spatial data from the identical posture without three dimensional measures, like computed tomography.
In the laboratory, however, these problems could be easily resolved by the motion tracking system, and higher resolution was proved. In clinical, motion tracking system had been incorporated into the field of computer assisted orthopaedic surgery (CAOS).
To our knowledge, most studies comparing the differences between navigation and manual method only with the traditional radiographic measures. Few studies used the optical motion tracking system as a tool for measurement and compared the results of different surgical methods.
The aim of the study is to expand the use of current navigation system to the conventional total knee arthroplasty for the function of spatial measurement by its integrating optical tracking system. First, the feasibility of the combination of the optical tracking measurement system with conventional total knee arthroplasty needs verification. Second, use the spatial results of lower extremity alignments in primary total knee arthroplasty but performed with different surgical techs and find the differences. Third, set up the database of lower extremity alignments in primary total knee arthroplasty with different surgical techs for future correlations with the clinical outcomes. Some potential risks and the surgical differences were also analyzed and addressed.
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