You have accessJournal of UrologyCME1 Apr 2023MP42-06 ASSESSING THE ACCURACY OF PREOPERATIVE RADIOGRAPHIC IMAGING IN DETERMINING URETERAL STRICTURE LENGTH AT TIME OF ROBOTIC URETERAL RECONSTRUCTION Labeeqa Khizir, Alain Kaldany, Hiren V. Patel, and Sammy E. Elsamra Labeeqa KhizirLabeeqa Khizir More articles by this author , Alain KaldanyAlain Kaldany More articles by this author , Hiren V. PatelHiren V. Patel More articles by this author , and Sammy E. ElsamraSammy E. Elsamra More articles by this author View All Author Informationhttps://doi.org/10.1097/JU.0000000000003280.06AboutPDF ToolsAdd to favoritesDownload CitationsTrack CitationsPermissionsReprints ShareFacebookLinked InTwitterEmail Abstract INTRODUCTION AND OBJECTIVE: During robotic ureteral reconstruction, accurate measurement of ureteral stricture length is important for surgical planning. We aimed to determine the accuracy of using conventional fluoroscopic imaging compared to ureteroscopy and direct measurement with measuring tape during intra-operative robotic repair. METHODS: A retrospective review was conducted for 15 patients with ureteral stricture disease at a single institution treated with robotic repair. Data was collected regarding etiology of ureteral stricture disease, measured preoperative radiographic stricture length on fluoroscopy, and measured intraoperative robotic stricture length. A Wilcoxon matched-pairs rank test was performed to compare ureteral length measurements. RESULTS: The most common etiologies of ureteral stricture were prior medical history of stone disease (n=10), prior ureteropelvic junction obstruction repair (n=3), and other iatrogenic causes (n=2) (Table 1). A majority of patients had ureteral stricture repair using buccal mucosa (n=7) or appendiceal onlay (n=6) grafts (Table 1). A total of 11 patients (73%) had >1 cm difference in stricture length between radiographic and robotic measurement (Figure 1). Of these patients, 73% (n=8) had prior medical history of stone disease (Table 1). The intraoperative robotic length was significantly longer compared to preoperative radiographic length (Median difference 1.2 cm, 98% CI 0.15-2.3, p<0.05) (Figure 1). CONCLUSIONS: Conventional preoperative radiographic measurement significantly underestimates the ureteral stricture length compared to intraoperative measurement. This may have clinical significance in influencing operative planning, technique, and the length of graft that is harvested. Source of Funding: None © 2023 by American Urological Association Education and Research, Inc.FiguresReferencesRelatedDetails Volume 209Issue Supplement 4April 2023Page: e568 Advertisement Copyright & Permissions© 2023 by American Urological Association Education and Research, Inc.MetricsAuthor Information Labeeqa Khizir More articles by this author Alain Kaldany More articles by this author Hiren V. Patel More articles by this author Sammy E. Elsamra More articles by this author Expand All Advertisement PDF downloadLoading ...