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The use of a porcine model to teach advanced abdominal wall dissection techniques
Mathew Ollapallil Jacob1,2, Alex Karatassas3,4, Peter Hewett3,4
1Lyell McEwin Hospital, Elizabeth Vale, SA, Australia. Matt.o.jacob@gmail.com.
Background:
In the era of minimally invasive surgery, it is clear that a robust simulation model is required for the training of surgeons in advanced abdominal wall reconstruction. The purpose of this experimentation was to evaluate whether a porcine model could be used to teach advanced minimally invasive abdominal wall dissection techniques to novice surgeons. Secondary objectives included: time to completion, identification of various anatomical landmarks, to note the difference in porcine and human models and finally, the ability to dock a Da Vinci Xi robotic platform on the porcine model.
Methodology:
Two post-fellowship surgeons were given the task of performing an extended total extraperitoneal dissection (ETEP) on one female Landrace pig under the supervision of a surgeon experienced in robotic-assisted ventral hernia repair. This included insertion of ports, developing a retro-rectus plane, crossover from left to right rectus, bilateral transverse abdominus release, and sub-diaphragmatic dissection. A 5-mm vessel sealer was used to facilitate the dissection. The steps of the surgery were given to the trainees, and an experienced hernia surgeon guided the steps of dissection. The emphasis of the tasks was to develop the planes of extraperitoneal dissection to demonstrate that the porcine model could be considered for a viable and realistic model for training.
Results:
The candidates were able to successfully complete the task and dock a Da Vinci Xi with the porcine model providing a realistic platform for training.
Conclusion:
The porcine model can be a considerable tool in the education of surgeons embarking on learning the art of minimally invasive abdominal wall reconstruction techniques. The advantage of live tissue dissection, similarity in anatomy and the relatively inexpensive availability of porcine models, makes it an unparalleled form of simulation-based training. We believe that this will have transitional capabilities to robotic ETEP education for complex hernia repair.
