발목 골절에서 불안정한 인대 부상을 예측하기 위해 정적 양방향 CT 스캔의 유효한 진단 매개 변수
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- Valid diagnostic parameters in static bilateral CT scan for predicting unstable syndesmotic injury in ankle fracture
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The purpose of this study is to evaluate valid and reasonable parameters to predict syndesmotic injury in ankle fracture.
Materials and methods:
Seventy patients who underwent preoperative bilateral CT scans were enrolled retrospectively. On preoperative x-ray, tibiofibular overlap (TFO) and tibiofibular clear space (TFCS) were measured. On preoperative CT scan, anterior fibular distance (AFD), posterior fibular distance (PFD), anterior translation distance (AT), fibular diastasis (FD), anterior-posterior translation (APT), fibular length (FL), surface area of syndesmosis (SAS), surface area of syndesmosis of 1.5cm above the ankle joint line (SAS1.5) were measured. Those measured values were divided with those of uninjured side, in order to minimize the differences among the individuals.
Statistically significant differences has been shown between The measurements of ratio (Injured/Uninjured) of TFO, PFD, APT, Diastasis, and SAS of groups which required transfixation have shown statistically significant difference, compared to those of groups which did not require transfixation. Other measurements were not showing significant difference. Furthermore, using ROC curve analysis, a ratio of measurement which is the most reasonable to predict transfixation was SAS ( 95% confidence interval = 0.598 – 0.869, cut of value = 1.555) Discussion : Measuring TFO, PFD, APT, Diastasis, and SAS from CT scans and comparing with uninjured side preoperatively can provide surgeon an reasonable evidence to perform transfixation intraoperatively
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- 3. Thesis (학위논문) > 1. School of Medicine (의과대학) > 석사
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