Development and face validity testing of pyeloplasty surgical training models

Area of Science:

• Urology
• Surgical Education
• Medical Device Development

Background:

• Limited availability of realistic and accessible training models for laparoscopic pyeloplasty.
• Need for models depicting pathological features of pelvicoureteric junction obstruction (PUJO).

Purpose of the Study:

• To develop a functional laparoscopic pyeloplasty training model using user-centered design.
• To accurately represent the pathological characteristics of PUJO.

Main Methods:

• Creation of patient-matched anatomical models (kidney, renal pelvis, ureter) from CT scans of a pediatric PUJO patient.
• Production and testing of three model versions: polyjet, resin, and silicone.
• Face validity testing by consultant surgeons, training surgeons, and medical students assessing realism and usefulness.

Main Results:

• Silicone and polyjet models received higher ratings for realism and usefulness compared to resin models.
• The silicone model was rated as more accessible due to readily available materials and significantly lower cost.
• Both polyjet and silicone models demonstrated high realism and utility for surgical training.

Conclusions:

• A realistic and useful pyeloplasty surgical training model was successfully developed.
• The silicone model offers a low-cost, accessible option for practicing complex anatomical features of PUJO.
• This model can enhance surgical training in resource-limited environments.