Evaluating a novel 3D printed model for simulating Large Loop Excision of the Transformation Zone (LLETZ)

Area of Science:

• Medical Education
• Surgical Simulation
• Gynecology

Background:

• Electrosurgical excisions are common for cervical dysplasia but require thorough training due to risks of inadequate resections.
• Current simulation methods lack high fidelity and patient safety for electrosurgery training.
• Effective simulation is crucial for preventing complications like preterm birth and recurrence.

Purpose of the Study:

• To compare the effectiveness of a novel 3D printed simulator against a conventional simulator for electrosurgical excisions.
• To evaluate the impact of the novel simulator on medical students' learning curves and surgical performance.
• To assess student satisfaction and identify advantages of the new simulation technology.

Main Methods:

• Sixty medical students were divided into two groups for a seminar on cervical dysplasia.
• Group A used a conventional simulator, while Group B used a novel 3D printed simulator for colposcopic examination and electrosurgical training.
• Performance was assessed using validated scores, counting adequate resections and unintended contacts, followed by student questionnaires.

Main Results:

• The novel simulator group (Group B) showed statistically significant improvements in 9 out of 18 assessed parameters.
• Group B achieved a higher rate of adequate R0-resections and fewer unintended contacts between the electrosurgical loop and surrounding tissues.
• Students highly appreciated the novel simulator, reporting a mean score of 1.6 on a 1-10 scale for its specific features.

Conclusions:

• The novel 3D printed simulator offers significant advantages over conventional models for electrosurgical training.
• This advanced simulation technology can enhance the quality of training for novice gynecologists.
• Improved simulation directly contributes to better surgical skills and enhanced patient safety in treating cervical dysplasia.