Validation of a novel non-biological bench model for the training of percutaneous renal access

Abstract

ARTICLE INFO ______________________________________________________________ ______________________Purpose: The percutaneous renal access (PRA) is the most critical step of percutaneous renal surgery (PRS). For the training of PRA in the lab, a novel non-biological bench model was developed and set for validation test. Materials and Methods: Experts in PRS (> 60 cases) and novices were included to perform fluoroscopy guided PRA on the model. Overall time, X-ray exposure time and puncture attempts were recorded to establish construct validity. After accomplishment, the experts rated the model using a standardized questionnaire for face and content validity based on a 5-point Likert scale, with 1 denoting very bad and 5 as excellent.Baseline and post-training data of novices were analyzed for skill acquisition. Results: 9 experts and 30 novices were finally included. The overall appraisal was 4 by the experts, and consensus of all experts was reached for the model as an excellent training tool. Significant difference between experts and novices was detected with the experts using less total time 183.11 ± 29.40 vs. 278.00 ± 50.30 seconds (P < 0.001), shorter X-ray exposure time 109.22 ± 19.93 vs. 183.13 ± 38.83 seconds (P < 0.001), and fewer attempts 1.28 ± 0.44 vs. 2.35 ± 0.65 (P < 0.001). After training, the novices demonstrated significant skill improvement in total and fluoroscopy time, and number of attempts (P < 0.001). Conclusions: Our non-biological model provides a new method for PRA training. The face, content and construct validity were demonstrated. This model allows contact with PRA skills and could be applied to the first step in the learning curve.

Application of 3D Printing in the Surgical Planning of Trimalleolar Fracture and Doctor-Patient Communication

“…Questionnaire 1 for doctors was designed according to the literature to evaluate the 3D-printed prototype [ 5 , 6 ]. The questionnaire included five aspects: (1) overall satisfaction with the 3D prototype; (2) degree of verisimilitude of the 3D prototype to the actual fracture; (3) detailed demonstration of the anatomical structure of the ankle joint by the 3D prototype; (4) detailed demonstration of the fracture-fragment-displacement direction and fracture-injury degree by the 3D prototype; and (5) usefulness of the 3D prototype as a preoperative planning tool.…”

Simulation for Percutaneous Renal Access: Where Are We?

“…22 Other nonbiological bench models used prototyping or 3D printing. [23][24][25][26] Only one study reported the use of anesthetized live pigs as module 1 of the Modular Training Scheme, which included renal puncture, tract dilatation using the Amplatz dilators, and orientation with the nephroscope in a live pig. 27 The PERC MentorÔ (Simbionix, Cleveland, OH) was the only VR simulator that has been validated for training and assessment of PCA skills.…”

SabreSource™: a novel percutaneous nephrolithotomy apparatus to aid collecting system puncture - a preliminary report

“…1 Various simulators are available to aid PCNL apprenticeship. These range from phantom kidney models 11 to sophisticated virtual reality trainers such as the PERC Mentor. 12 These are useful adjuncts to clinical apprenticeship.…”