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The Rochester Model for Spinal CSF Leak Repair Simulation and Scoring
Muhammad I Jalal1, Gabrielle Santangelo2, Joshua Samodal2
1University of Rochester School of Medicine and Dentistry, Rochester , New York , USA.
Operative Neurosurgery (Hagerstown, Md.)
|November 25, 2024
Summary
This study developed an affordable, 3D-printed spinal model for practicing cerebrospinal fluid (CSF) leak repair. The model and new assessment criteria (ROCL) offer realistic, cost-effective surgical simulation training.
Area of Science:
- Neurosurgery
- Medical Simulation
- 3D Printing Technology
Background:
- Iatrogenic spinal durotomies occur in 1-17% of surgeries.
- A need exists for accessible and validated surgical simulation for durotomy repair.
Purpose of the Study:
- To design and validate a low-cost, 3D-printed model for spinal cerebrospinal fluid (CSF) leak repair.
- To introduce the Rochester original objective structured assessment of technical skills (OSATS) CSF leak (ROCL) repair criteria for proficiency assessment.
Main Methods:
- A 3D-printed lumbar spine model with a simulated dura was created.
- Participants practiced repairing a 1.5-cm durotomy using microinstruments.
- The 25-point ROCL criteria, adapted from OSATS, were used for blinded assessment.
Main Results:
- The 3D-printed model was found to be realistic and useful for improving surgical technique.
- Attendings (median 19/25) and residents (median 15/25) demonstrated proficiency using the ROCL score.
- The model is affordable (approx. $20) and reusable, with low-cost consumables.
Conclusions:
- An affordable, realistic, and educational 3D-printed model for spinal CSF leak repair has been developed.
- The ROCL criteria provide a validated method for assessing surgical repair proficiency in simulation.

