High-Fidelity Synthetic Simulation in Surgical Training

Advancing surgical skills through repetitive practice, realistic anatomy and procedure-specific training

A new dimension in surgical education

Surgical expertise requires more than anatomical knowledge. Surgeons must develop technical precision, hand–eye coordination, instrument control and the ability to navigate complex anatomical structures safely.

Traditionally, these skills have been acquired through cadaveric dissection and supervised surgery on patients. Both remain essential components of surgical education, but they have limitations, particularly when it comes to repeated practice and opportunities to rehearse specific procedures.

Advances in three-dimensional printing and synthetic materials are creating new possibilities. High-fidelity surgical models allow trainees to practise procedures repeatedly, develop familiarity with instruments and rehearse complex surgical approaches before progressing to cadaveric training or operating on patients.

Synthetic simulation does not replace cadaveric dissection. It offers additional training opportunities that conventional methods cannot always provide.

Repetition: a fundamental advantage

One of the greatest advantages of synthetic surgical simulation is the ability to practise the same procedure repeatedly within a short period.

Repetition is essential for developing surgical dexterity, instrument handling, hand–eye coordination and procedural familiarity. Yet opportunities for repeated practice can be limited in both clinical and cadaveric environments.

Grommet insertion provides a compelling example.

Trainees may perform their first myringotomy and grommet insertion on a patient under supervision, without having had sufficient opportunities to practise the procedure beforehand.

A synthetic ear model with a replaceable tympanic membrane offers a different approach. A trainee can repeatedly practise making a precise incision, manipulating instruments under microscopic or endoscopic visualisation, and inserting a grommet.

By replacing the simulated eardrum after each attempt, the trainee can perform numerous insertions during a single training session, receiving feedback and refining technique with each repetition.

A cadaveric tympanic membrane, by comparison, allows only limited repeated incisions before the tissue becomes unsuitable for further practice.

This ability to repeat an entire procedure many times in a controlled environment is particularly valuable for trainees learning fundamental surgical skills.

Structured simulation-based practice should be a routine preparatory component of surgical training, allowing trainees to develop basic technical proficiency before operating on patients.

The same principle applies to other procedures requiring precise manipulation of instruments within narrow anatomical spaces.

Rehearsing complex surgery: the transorbital example

Synthetic simulation is equally valuable for learning advanced surgical approaches.

Endoscopic transorbital surgery is an evolving technique that provides access to selected orbital and skull base regions through a confined surgical corridor. It requires detailed anatomical knowledge, precise instrument coordination and careful planning of the surgical approach.

Learning to work with multiple instruments in a restricted space presents particular challenges, especially when combining microscopic and endoscopic visualisation.

The Anatomex 3D Transorbital Surgical Simulation Model provides a practical environment in which surgeons can rehearse the individual stages of these complex procedures.

Using the model, surgeons can:

Plan surgical positioning: Explore how best to position themselves and the patient’s head to achieve an appropriate operative trajectory.
Practise instrument placement: Establish the position and orientation of instruments, including how multiple instruments can be manipulated within a narrow surgical corridor.
Rehearse the surgical approach: Practise the relevant steps of exposure, dissection and access to the intended anatomical target.
Explore visualisation techniques: Practise working with the microscope and endoscope, including how the choice and positioning of visualisation equipment influence the surgical approach.
Understand anatomical relationships: Identify relevant orbital and skull base landmarks and appreciate the proximity of critical neurovascular structures.
Repeat procedural steps: Rehearse difficult aspects of the approach using replaceable simulation components.

The model’s rotatable head mount also allows surgeons to explore the influence of head positioning on surgical access and ergonomics.

These opportunities are particularly valuable when learning a relatively unfamiliar approach. They allow surgeons to experiment with positioning, refine instrument coordination and work through the surgical sequence before progressing to cadaveric dissection or clinical surgery.

Explore the Anatomex 3D Transorbital Surgical Simulation Model

Simulating pathology: another important advantage

An important advantage of 3D-printed surgical models is the ability to incorporate specific pathology into the anatomical structures, creating realistic, procedure-specific training scenarios.

The Anatomex 3D Transorbital Surgical Simulation Model can be configured to simulate cavernous sinus tumours, sphenoid wing meningiomas and orbital tumours. These scenarios allow surgeons to rehearse different surgical approaches and develop an understanding of how tumour location influences operative planning.

Using the model, surgeons can practise:

Planning the surgical approach to a tumour in a specific anatomical location.
Positioning themselves and arranging instruments around the patient’s head.
Manipulating multiple instruments within the narrow transorbital surgical corridor.
Selecting and transitioning between microscopic and endoscopic visualisation.
Rehearsing the sequence of surgical exposure, access and selected steps of tumour removal.
Understanding the spatial relationships between the simulated pathology and surrounding critical structures.

Unlike conventional cadaveric specimens, which generally do not contain the particular pathology a surgeon wishes to study, synthetic models can be designed to reproduce selected pathological scenarios consistently.

This is particularly valuable in transorbital and skull base surgery, where different tumour locations present distinct anatomical and technical challenges.

The ability to rehearse a complex surgical approach, including instrument positioning, visualisation and the steps involved in accessing a simulated tumour, offers a valuable opportunity for preparation before cadaveric or clinical surgery.

Integrating synthetic models with cadaveric training

Cadaveric dissection remains invaluable for appreciating natural anatomical variation, authentic tissue characteristics and complex anatomical relationships.

Synthetic models offer different but complementary advantages:

Repeated practice without exhausting an entire specimen.
Standardised training environments.
Opportunities to simulate selected pathological conditions.
Procedure-specific rehearsal, including instrument positioning and surgical ergonomics.
Greater flexibility in scheduling and delivering practical training.
Potential cost advantages through reusable platforms and replaceable components.

The educational value of synthetic simulation depends on the quality of the model, the procedure being practised and the structure of the training programme.

The greatest benefit is likely to come from integrating simulation into a progressive learning pathway: developing fundamental technical skills on synthetic models, extending anatomical and procedural experience through cadaveric dissection, and consolidating competence through supervised clinical practice.

The Anatomex 3D approach

Anatomex 3D develops and supplies anatomical models for surgical simulation and education across several specialties, including rhinology, skull base surgery, neurosurgery, otology and transorbital endoscopic surgery.

Its models are designed to support practical, hands-on learning, from repetitive technical exercises to rehearsal of complex surgical approaches.

The combination of anatomically detailed structures, selected replaceable components and the ability to represent specific anatomical or pathological scenarios offers educators flexibility in designing training exercises appropriate to different levels of surgical experience.

Conclusion

High-fidelity synthetic simulation offers opportunities to strengthen surgical education that extend beyond those available through conventional cadaveric training alone.

The ability to practise basic procedures repeatedly, rehearse the steps of complex operations and incorporate specific pathological scenarios makes these models valuable additions to the surgical training environment.

For trainees learning fundamental skills, synthetic simulation provides opportunities to develop technique and familiarity with instruments before performing procedures on patients.

For experienced surgeons adopting new or complex approaches, models such as the Anatomex 3D Transorbital Surgical Simulation Model provide opportunities to refine positioning, instrument coordination and operative strategy.

The future of surgical education lies not in choosing between synthetic and cadaveric training, but in combining their strengths to support safer, more structured and more effective surgical skills development.

Explore Anatomex 3D’s surgical simulation models

This clinical resource is intended for educational purposes. Simulation models complement, but do not replace, appropriate clinical supervision, cadaveric training or competency assessment. Their suitability depends on the model’s design and intended training application.