Frequency of Rouviere's Sulcus and its Relation to the Dissection Time of Calot's Triangle

To determine the frequency of Rouvière’s Sulcus in patients undergoing laparoscopic cholecystectomy and assess its relationship with the dissection time of Calot’s Triangle. Study Design Cross-sectional study. Place and Duration of Study Department of General Surgery, CMH Quetta, from November 2024 to January 2025. Methodology A total of 52 patients undergoing elective laparoscopic cholecystectomy for cholelithiasis were included using non-probability consecutive sampling. Rouvière’s Sulcus was identified intraoperatively and classified into open, closed, and slit types among visible cases. The dissection time of Calot’s Triangle was recorded from the insertion of the last port to the clipping of the cystic artery and duct. Data was analyzed using SPSS version 24. Results Rouvière’s Sulcus was visible in 48 (92.3%) patients, while it was not identified in 4 (7.7%) cases. Among the visible RS cases, open type (54.2%) was the most common, followed by closed (33.3%) and slit (12.5%) types. RS visibility was significantly associated with age (p=0.027) and diabetes mellitus (p=0.006). The median dissection time of Calot’s Triangle was shorter in patients with visible RS (9.5 minutes, IQR: 8-13) compared to those without RS (14 minutes, IQR: 11-15, p=0.041). The type of RS did not significantly influence dissection time (p=0.420). Conclusion Rouvière’s Sulcus was present in most patients, with the open type being the most frequent. Its presence was associated with a shorter dissection time, reinforcing its role as a key surgical landmark for safe laparoscopic cholecystectomy.