Journal article
Design and Validation of a Low-Cost, High-Fidelity Model for Urethrovesical Anastomosis in Radical Prostatectomy
Journal of endourology, Vol.33(4), pp.331-336
04/01/2019
DOI: 10.1089/end.2018.0871
PMID: 30734578
Abstract
Objective: We sought to develop and validate a low-cost, high-fidelity robotic surgical model for the urethrovesical anastomosis component of the robot-assisted laparoscopic radical prostatectomy. Materials and Methods: A novel simulation model was constructed using a 3D-printed model of the male bony pelvis from CT scan data and silicone molds to recreate the soft tissue aspects. Using a da Vinci Si surgical robot, urology faculty and trainees performed simulated urethrovesical anastomosis. Each participant was given 12 minutes to complete the simulation. A survey established face validity, content validity, and acceptability. Simulation runs were evaluated by three blinded reviewers. The anastomosis was graded by two reviewers for suture placement accuracy and anastomosis quality. These factors were compared with robotic experience to establish construct validity. Results: Twenty participants took part in the initial validation of this model. Groups were defined as experts (surgical faculty), intermediate (fellows and chief residents), and novices (junior residents). Likert scores (1-5 scale, top score 5) examining face validity, content validity, and acceptability were 3.49 +/- 0.43, 4.15 +/- 0.23, and 4.02 +/- 0.19, respectively. Construct validity was excellent based on the model's ability to stratify groups. All evaluated metrics were statistically different between the three levels of training. Total material cost was $2.50 per model. Conclusions: We developed a novel low-cost robotic simulation of the urethrovesical anastomosis for robot-assisted radical prostatectomy. The model discerns robotic skill level across all levels of training and was found favorable by participants showing excellent face, content, and construct validities.
Details
- Title: Subtitle
- Design and Validation of a Low-Cost, High-Fidelity Model for Urethrovesical Anastomosis in Radical Prostatectomy
- Creators
- Brett A. Johnson - Univ Texas Southwestern, Dept Urol, 2001 Inwood Dr, Dallas, TX 75390 USAMatthew Timberlake - The University of Texas Southwestern Medical CenterRyan L. Steinberg - The University of Texas Southwestern Medical CenterMatthew Kosemund - The University of Texas Southwestern Medical CenterBradly Mueller - The University of Texas Southwestern Medical CenterJeffrey C. Gahan - The University of Texas Southwestern Medical Center
- Resource Type
- Journal article
- Publication Details
- Journal of endourology, Vol.33(4), pp.331-336
- Publisher
- Mary Ann Liebert, Inc
- DOI
- 10.1089/end.2018.0871
- PMID
- 30734578
- ISSN
- 0892-7790
- eISSN
- 1557-900X
- Number of pages
- 6
- Language
- English
- Date published
- 04/01/2019
- Academic Unit
- Urology
- Record Identifier
- 9984319989302771
Metrics
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