The infundibulopelvic ligament (suspensory ligament of the ovary) is the lateral component of the broad ligament that connects the ovary to the lateral pelvic wall, transmitting the ovarian artery, vein, and lymphatics to the ovary.
Suspends the ovary from the lateral pelvic wall, transmits the ovarian neurovascular bundle, and is divided during oophorectomy and hysterectomy to control the ovarian blood supply.
The infundibulopelvic ligament contains the ovarian vessels — its high ligation during hysterectomy for ovarian cancer provides the best oncological clearance. The ureter crosses behind the IP ligament at the pelvic brim — identification of the ureter before IP ligament division prevents ureteral injury in the most common site of gynaecological ureteral injury.
The ureter crossing posterior to the infundibulopelvic ligament at the pelvic brim — the most common site of iatrogenic ureteral injury in gynaecological surgery — avoided by ureter identification before IP ligament clamping.
Ligation of the IP ligament at the pelvic sidewall level during cytoreductive ovarian cancer surgery achieves the widest oncological margin and best vascular control.
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