本研究為通用型器械(Globe Specific Instrument, GSI)採用AI方法的先期的研究，主要為蒐集人體的脛骨電腦斷層掃描(Computed Tomography, CT)影像後，重建為三維模型資料做分析，並以3D列印脛骨模型進行體外重現性實驗，以驗證通用型器械(GSI)與引切器械的先期手術規劃開發可行性。將膝關節炎的脛骨量測記錄，做脛骨形態學統計結果的AP/ML比例為0.67，以3D模型量測比2D影像量測脛骨尺寸更貼近文獻數據；均值化模型(SSM)與該分群內的脛骨外型的平均差距為0.47mm；GSI限制高度的實驗結果顯示可有效的使重現性誤差降低。重現性實驗的二維誤差統計結果：小於1.0mm範圍為96.67%，小於1.5mm範圍為99.63%，以光學掃描的三維距離誤差值為0.48mm，比文獻的1.5mm還要小，而光學掃描的三維角度誤差值為2.26∘，小於文獻的3∘，因此說明本研究設計的通用型器械手術器械，可透過臨床醫師施打脛骨平台定位導針之後，達到與術前規劃一致的定位位置，讓截骨手術順利完成。

This study is a preliminary study on the use of AI methods for a universal instrument (Globe Specific Instrument, GSI). It mainly collects Computed Tomography (CT) images of the tibia of the human body, reconstructs it into 3D model data for analysis, and uses 3D images for analysis. The tibia model was printed for in-vitro reproducibility experiments to verify the feasibility of pre-operative planning and development of Globe Specific Instrument (GSI) and Guide instruments. The tibia measurement of knee arthritis was recorded, and the AP/ML ratio of tibial morphological statistics was 0.67. The 3D model measurement was closer to the literature data than the 2D image measurement. The mean value model (SSM) and this grouping The average difference between the inner and outer tibial shapes was 0.47 mm; the experimental results of the GSI limit height showed that it can effectively reduce the reproducibility error. The statistical results of the two-dimensional error of the reproducibility experiment: the range less than 1.0mm is 96.67%, the range less than 1.5mm is 99.63%, and the three-dimensional distance error value of optical scanning is 0.48mm, which is smaller than the 1.5mm in the literature. The error value of the three-dimensional angle of the scan is 2.26∘, which is less than 3∘in the literature. Therefore, it shows that the general-purpose surgical instrument designed in this study can achieve a positioning position consistent with the preoperative planning after applying the tibial plateau positioning guide pin by the clinician, so that the osteotomy can be successfully completed.

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