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RISS 인기검색어
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- 저자 : Luan Khoi Tran (검색결과 1 건)
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Kang Heo,Hyeon Jang Jeong,Joo Han Oh,Luan Khoi Tran 대한견주관절의학회 2021 대한견주관절학회 학술대회논문집 Vol.2021 No.3
Introduction and Background To evaluate the accuracy of preoperatively planned individualized humeral implantation with a rotational guide in reference to the forearm axis for reverse total shoulder arthroplasty (RTSA) using the orientation of intertubercular sulcus (OITS) in postoperative 3D CT without elbow scan. Material and Method In this study, 106 patients using single implant (Comprehensive System<sup>®</sup>, Warsaw, Indiana) in which the humeral component is implanted based on the native retroversion measured by 3D CT including elbow was evaluated. Intraoperatively, a rotational guide was attached to the broach to determine the humeral component retroversion (HCRV) to be implanted, and the retroversion was applied in 5° increments consideration with contralateral side. Intertubercular sulcus (ITS) axis was defined as the line perpendicular to the intertubercular line, and the angle between ITS and trans-epicondylar axis was defined as the bicipital groove rotation (BGR). The preoperative OITS was described as the angle between ITS and humeral head axis, and postoperative OITS was described as the angle between ITS and humeral component axis. Because the BGR does not change before and after surgery, the subtracted value of postoperative OITS from the BGR was defined as measured HCRV. The correlation between preoperatively planned and postoperatively measured HCRVs was evaluated. Results Intra-/interobserver reliabilities exceeded 0.8 for all measurements. Reverse correlation coefficient between the HRV and the OITS in preoperative CT were shown (-0.422, p < 0.001). Correlation coefficient between the mean values of preoperatively planned and postoperatively measured HCRVs was 0.934 (p < 0.001). The patients that had less than 5° difference between pre- and postoperative HCRVs was 87%. Conclusions Implantation of humeral component using a rotational guide to the forearm had good precision for inserting preoperatively planned HCRV for RTSA. To confirm the exact individualized HRV, elbow scanning is not a mandatory in postoperative 3D CT when the OITS is used.
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