Novel Model Employing the Placenta for Pelvic Dissection

Study Objective

Make low cost, easy to obtain new teaching module and to demonstrate feasibility. Previous models developed for this purpose have been established in high-resource centers such as those with 3D printing capabilities, however not all institutions have these resources. We will be using placentas for pelvic dissection in the open, laparoscopic, and robotic approach. Retroperitoneal dissection is a difficult technique to practice and teach due to lack of appropriate models that mimic the tissue. The goal of this surgical dissection is to expose various anatomical structures while ensuring structural and physiologic integrity of the tissue. Specific skills are necessary to perform a safe and efficient retroperitoneal surgical dissection in the female pelvis.

Design

Our model is the placenta as the amnion mimics the peritoneal tissue. The underlying or interposed vessels overlaying the chorion represent retroperitoneal structures including blood vessels and ureters. Placentas are easy to use because no preparation is needed, easy to gather, and easy to dispose of. Our placentas were stored in normal saline or on ice and were stored anywhere from 15 minutes to 8 hours before usage.

Setting

In institutions practicing obstetrics, placentas are readily available.

Patients or Participants

Despite the disposition of the placentas as waste, consent for educational purposes use was obtained from patients.

Interventions

This video shows open and laparoscopic approach of retroperitoneal dissection practice on placenta.

Measurements and Primary Results

The video shows techniques to practice pelvic dissection.

Conclusion

We hope this shows a feasible easy model to practice pelvic dissection.