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Resource Hub

Explore the Clinical Validation and Innovation behind PrecisionOS

*Over 20+ peer-reviewed publications and institutional case studies.

Clinical Validation & Research

New Publications

Errors in implant orientation estimation in novice vs. experienced surgeons during reverse shoulder arthroplasty for a superior glenoid wear pattern

Lohre R, Bois A, Lapner P, Pollock JW, Athwal GS, Goel DP. Errors in implant orientation estimation in novice vs. experienced surgeons during reverse shoulder arthroplasty for a superior glenoid wear pattern. JSES International. 2025 Jan 16;9(2):100612. doi: 10.1016/j.jseint.2024.12.008.

Glenoid baseplate orientation in reverse shoulder arthroplasty (RSA) significantly influences clinical outcomes, complications, and failure rates. Novel technologies have been produced to decrease performance heterogeneity of low- and high-volume surgeons. This study evaluated the ability of both novice and experienced shoulder surgeons to accurately estimate glenoid component orientation in an intra-operative scenario. The research highlights the significant variability in visual estimation and underscores the critical importance of hands-on learning, skill transfer, and immersive technology to improve implant accuracy across all experience levels.

Lohre R, Goel DP, Williams J, Rahman O, Ochiai D. Opportunities for Remote Surgeon-to-Surgeon Education: A Novel Use Case for Immersive Virtual Reality. Journal of Orthopaedic Experience & Innovation. 2024;5(1).

Hip arthroscopy for the treatment of altered hip morphology contributing to femoroacetabular impingement syndrome (FAI) has been shown in large randomized trials to be beneficial and superior to conservative management. However, common complications are significant for low-volume surgeons, and the procedure is associated with an unexpectedly steep learning curve. This publication details how the addition of contemporary, immersive virtual reality (iVR) simulator education serves as an effective means for both novice and expert surgeons to master the complex, high-stakes tasks of hip arthroscopy, reducing anxiety and increasing technical efficiency prior to real-world operations.

The Evolution Of Surgical Education And Training

Lohre R., Athwal GS, Warner JP, Goel DP Die Evolution der virtuellen Realität in der Schulter- und Ellenbogenchirurgie. 2020. Journal of Shoulder and Elbow Surgery International. 2020, 4(2): 215-223

The use of virtual reality (VR) in shoulder and elbow surgery has varying levels of evidence, from I to IV, and typically involves educational randomized controlled trials. However, the terms and definitions used in the literature are often redundant, confusing, or outdated. The purpose of this review was to characterize previous uses of VR in shoulder and elbow surgery in preoperative, intraoperative, and educational domains, including trauma and elective surgery.

R. Lohre, A. Bois, GS Athwal, P. Lapner, J. Pollock, DP Goel. Wirksamkeit der immersiven virtuellen Realität auf orthopädische chirurgische Fähigkeiten und Wissenserwerb bei älteren chirurgischen Assistenzärzten: Eine randomisierte klinische Studie JAMA Network Open. 2020, 3(12):e2031217

Immersive Virtual-Reality (iVR)-Simulatoren werden für das chirurgische Training immer interessanter. Die Trainingseffektivität von iVR im Vergleich zu Videotraining beim Erwerb komplexer Fähigkeiten wurde mithilfe einer randomisierten, interventionskontrollierten klinischen Studie untersucht, an der erfahrene orthopädische Chirurgen aus mehreren Institutionen in Kanada während eines einzigen Trainingskurses teilnahmen. Das chirurgische Training mit iVR zeigte eine überlegene Lerneffizienz, Wissens- und Fähigkeitsübertragung.

Ryan Lohre, MD and Danny P. Goel, MD, MSC, FRCSC, AAOS Now, “Immersive Virtual Reality: A Paradigm Shift in Education and Training”, January 2020.

The training of both aspiring and established surgeons remains rooted in the historic model of mentorship coupled with direct learning on patients. Yet, beyond the classic Halstedian “see one, do one, teach one” method of learning, there are other well-researched learning methods that virtual reality supports. Applying computing power and modern, highly realistic graphics creates an immersive operating environment that affords repetition of procedures with infinite variability. Trainees test their skills, make mistakes, accept feedback, reflect, and then repeat until they achieve proficiency. This has the potential for more rapid and efficient learning gained through greater experience, creating an accelerated path to mastery.

Ryan Lohre, Jeffrey C. Wang, Kai-Uwe Lewandrowski, Danny P. Goel, J Spine Surg, “Virtual reality in spinal endoscopy: a paradigm shift in education to support spine surgeons,” January 2020

Mit den technologischen Fortschritten in der Computerverarbeitung verbessert sich der Stand der Virtual-Reality-Simulation für die Ausbildung in der Neurochirurgie und orthopädischen Chirurgie weiter. Seine Verwendung wurde von medizinischen Gesellschaften und Organisationen befürwortet, und es gibt eine wachsende Zahl von Unterstützung in der medizinischen Literatur. Ein systematischer Review umfasste 38 separate Studien, die den Einsatz von Virtual Reality, Augmented Reality und Mixed-Reality in einer Vielzahl von Verfahren veranschaulichen. Die Studien fanden eine Verbesserung sowohl der technischen Fähigkeiten als auch der Patientenergebnisse in der kurzfristigen Nachbeobachtung.

Lohre R., Bois A., Athwal GS, Goel DP CSES. Verbesserter Erwerb komplexer Fähigkeiten durch immersive virtuelle Realität: Eine randomisierte kontrollierte Studie. J Bone Joint Surg Am. 2020, 102(6):e26

Der Zweck dieser multizentrischen, verblindeten, randomisierten, kontrollierten Studie bestand darin, die Gültigkeit und Wirksamkeit des immersiven Virtual-Reality-Trainings (iVR) in der Ausbildung von Assistenzärzten in der Orthopädie zu bestimmen. Der Fokus lag auf der Erzielung einer optimalen Glenoidfreilegung. IVR demonstrierte einen wesentlich verbesserten Erwerb von translationalen technischen und nicht-technischen Fähigkeiten gegenüber traditionellem Lernen. Darüber hinaus demonstrieren die Ergebnisse die Gesichts-, Inhalts-, Konstrukt- und Transfervalidität für iVR.

Competency-Based Surgical Training

Feeley A, Feeley I, Merghani K, Sheehan E. Eine Pilotstudie zur Bewertung der Gesichts- und Konstruktvalidität eines orthopädischen Virtual-Reality-Simulators. Verletzung. 2021 Jul;52(7):1715-1720. doi: 10.1016/j.injury.2021.04.045. Epub 16. April 2021. PMID: 33926708.

This study aimed to identify the face and construct validity of the PrecisionOS trauma module proximal femoral nail procedure. Participants carried out a simulated proximal femoral nail on the POST immersive virtual platform following instruction on its use. The results demonstrated a statistically significant difference across all group’s novel performance, concluding the proximal femoral nail module on the PrecisionOS platform demonstrated good face and construct validity.

Lohre R, Kim, L, Wang, J und Goel DP. Immersive virtuelle Realität in der endoskopischen und offenen Wirbelsäulenchirurgie. Technische Fortschritte in der minimalinvasiven Wirbelsäulenchirurgie, Navigation, Robotik sowie Augmented und Virtual Reality. Springer Natur. (im Druck)

Simulation in surgical education provides trainees with opportunity to acquire or retain skill. Skill in spine surgery may be defined as technical or non-technical – procedural knowledge and understanding. Research into effectiveness of simulator training shows that initial and incremental improvements eventually plateau. The ability of the simulator to provide efficient and effective training correlative to real world experiences defines the simulator’s transfer effectiveness of skills.

Markku T. Nousiainen, Polina Mironova, Melissa Hynes, Susan Glover Takahashi, Richard Reznick, William Kraemer, Benjamin Alman, Peter Ferguson & The CBC Planning Committee (2018) Achtjährige Ergebnisse eines kompetenzbasierten Weiterbildungsprogramms für orthopädische Chirurgie, Medizinlehrer, 40:10, 1042-1054, DOI: 10.1080/0142159X.2017.1421751

The use of simulation in training was a core element of a pilot residency training program begun in 2009 by the Division of Orthopaedic Surgery at the University of Toronto. It investigated the efficacy of a competency-based curriculum (CBC) for a subset of residents, compared to a strictly time-based approach. The modularized approach dramatically intensified the structured learning elements and assessment process. Eight of the 14 residents who participated completed their residency training in four years rather than the traditional five.As a result, the Division of Orthopaedic surgery made the decision to fully adopt the CBC as the sole mode of training and assessment in the residency training program in the 2013–14 academic year. That same year, the Royal College of Physicians and Surgeons of Canada mandated that all postgraduate specialty programs in Canada were to adopt a competency-based framework by the year 2022.

Effektivität des Trainings mit VR

Lohre R, Goel DP. Surgical Device Representatives’ Preference for Experiential Learning via Immersive Virtual Reality. Journal of Orthopaedic Experience and Innovation. 2022

Immersives VR-Training ist in der Lage, die Leistung der SDR-Lernenden zu bewerten und zu verfolgen und wird von SDRs höher geschätzt als herkömmliche Trainingsformate. Die Kosten für die Integration dieser Technologie sind 2,8-mal geringer als bei aktuellen didaktischen und persönlichen Lernformaten. Dies ist die erste Studie dieser Art, die die Verwendung von IVR in der SDR-Population bewertet.

Lohre R, Goel DP, Leveille L. Novel Application of Immersive Virtual Reality Simulation Training: A Case Report. JAAOS Globale Forschung und Bewertungen. JAAOS Globale Forschung und Bewertungen. 2021, 5(11):e21.00114

Es gibt zunehmend Hinweise auf den Einsatz von immersiver virtueller Realität (iVR) in der orthopädischen Ausbildung. Mehrere randomisierte kontrollierte Studien zeigen eine verbesserte Leistung der Auszubildenden im Vergleich zur Kontrollgruppe, gemessen in analogen Bewertungen im Operationssaal. Dies ist der erste Fallbericht, der eine direkte Patientenversorgung nach dem Einsatz von iVR demonstriert. Die Auswirkungen der Kosteneffizienz durch Kompetenztransfer und Patientensicherheit werden hervorgehoben.

Lohre R, Warner JP, Morrey B, Athwal GS, Morrey M, Mazzocca A. Milderung des Verfalls chirurgischer Fähigkeiten in der Orthopädie durch virtuelles Simulationslernen JAAOS Global Research and Reviews. 2021, 5(10):e21.00193

The COVID-19 pandemic has interrupted orthopaedic training structures. Orthopaedic surgical skill decay can occur in days to months, depending on the initial skill level. Researchers determined skill decay mitigation strategies should use the best available evidence technologies and course structures that satisfy advanced learning concepts. The virtual curriculum, including immersive virtual reality (iVR) simulators, could provide cost-effective solutions to training.

Deloitte Insights, Real learning in a virtual world: How VR can improve learning and training outcomes, 2018.

Those tasked with training individuals to perform in high-risk environments face a conundrum: How can they deliver the benefits of learning from experience without the costs and dangers of putting trainees in those experiences? The answer is to recreate them using virtual reality (VR). VR presents immersive, realistic situations over and over again, building the expertise to deal with those situations before facing them in the real world. Research has shown that virtual reality reduces the time to learn while increasing the amount learned, while also improving long-term knowledge retention. In scenarios from food processing to handling dangerous industrial gases, VR is proven to promote better and faster learning. But where it truly comes into a class of its own, apart from other training methods, is when the body of knowledge to attain is complex.

Der Wert des VR-Chirurgietrainings

Feeley A, Turley L, Sheehan E, Merghani K. Ein tragbarer Hüftarthroskopie-Simulator demonstriert eine gute Gesichts- und Inhaltsvalidität bei unvollständiger Konstruktvalidität. Arthrosc Sports Med Rehabil. 17. Juli 2021;3(5):e1287-e1293. doi: 10.1016/j.asmr.2021.05.009. PMID: 34712965; PMC-ID: PMC8527255.

Ziel dieser Studie war es, die Gesichts-, Inhalts- und Konstruktvalidität eines tragbaren Hüftarthroskopiemoduls in einer regionalen orthopädischen Einheit zu evaluieren. Die Studie kam zu dem Schluss, dass dieser Hüftarthroskopie-Simulator eine akzeptable Gesichts- und Inhaltsvalidität zeigte. Die Teilnehmer gaben eine hohe Zufriedenheit mit dem Modul an. Darüber hinaus ist die Studie klinisch relevant, da sie eine gute Schein- und Inhaltsvalidität zeigt. Das Hinzufügen von haptischem Feedback in einem Hüftarthroskopie-Simulator kann das Lernen verbessern.

Lohre R, Morrey B, Goel DP. Immersive Technologien bieten kurz- und langfristigen Wert. AOO JETZT. 2020

The global orthopaedic community has seen profound changes in training and practice with the restrictions imposed during the COVID-19 pandemic. Surgical volume, practice management, and healthcare economics will see continued downstream effects, and travel restrictions have prevented surgeons from attending courses and conferences. This study reviews the impact on carbon emissions with the utility of virtual reality while delivering meaningful education and remote mentorship.

Lohre R, Goh G, Parvizi J, Goel DP. Virtuelle und erweiterte Realität für chirurgisches Training und Simulation in der Knieendoprothetik. Archives of Orthopaedic and Trauma Surgery (AOTS), 2021. 141(12):2303-2312

Dieser Artikel untersucht die Rolle von Immersive Virtual Reality (iVR), Augmented Reality und Mixed Reality-Technologien in der Knieendoprothetik. Dieses Spektrum der Integration von Extended-Reality-Technologie ermöglicht es Chirurgen, die patientenspezifische Anatomie zu visualisieren, die präoperative Planung zu verbessern und intraoperative Anleitungen bereitzustellen. Die Autoren kamen zu dem Schluss, dass Extended-Reality-Technologien unzählige Anwendungsmöglichkeiten in der orthopädischen Chirurgie haben.

Goel, DP und Lohre, R. Immersive virtuelle Realität bietet Wert für orthopädische chirurgische Trainingsprogramme. Gesundheitsmanagementpolitik und Innovation

Immersive Virtual Reality (IVR) ist eine disruptive Innovation, die die Qualität der chirurgischen Ausbildung erheblich verbessern und gleichzeitig die Kosten für eine solche Ausbildung senken kann. Die bisherige Evidenz für IVR zeigt, dass IVR im Vergleich zum traditionellen Bioskills-Training eine größere Wirkung auf die Verbesserung der Fähigkeiten von chirurgischen Auszubildenden bei geringeren Kosten zeigt. Der inhärente Realismus der IVR-Erfahrung kann teilweise die OP-Schulung ersetzen und somit die Opportunitätskosten für Schulungsprogramme reduzieren.

Lohre, R., Verhofste, B., Hedequist, D., Jacobson, J., & Goel, D. (2022). The Use of Immersive Virtual Reality (IVR) in Pediatric Orthopaedic Education. JPOSNA®, 4(S1). 

The traditional postgraduate surgical master-apprenticeship education model is undergoing a significant paradigm shift. For the past century, the transition from trainee to orthopaedic surgeon has been accomplished through stepwise integration of theoretical knowledge, observation of senior faculty, basic surgical skill acquisition, and gradual autonomy in complex procedures. Over the past decade, the explosion of virtual reality has heightened interest in this field for surgical residency training. The core principle of simulation training is “Lernen durch Tun” for acquisition and retention of surgical skills. It allows trainees to integrate theoretical knowledge with procedural skills in a risk-free setting prior to application in the operating room. Significant data supports the use of surgical simulation and virtual reality training modalities for skill acquisition in nearly every surgical specialty. The advancement in technology will allow immersive reality to become a standard educational platform in the future and this article provides a basic framework for understanding this ever-changing field.

Platform & Product Innovation

Video Walkthroughs & Technology in Action

Orthopedic Trauma - Medial Malleolus: App Walkthrough

A walkthrough video showcasing the medial malleolus case within the Orthopedic Trauma application. Virtual reality surgical simulation for ORIF of a medial malleolar fracture.

April 23, 2025

Delphi: The Anatomy Mentor in BodyWorks

Delphi, your AI Attending Mentor, transforms the BodyWorks environment into a highly interactive surgical mentor. Learn how you can utilize natural language voice prompts to master complex spatial intelligence.

April 23, 2025

Virtual Grand Rounds - Oct 2025 | Case Spotlight: Fibula transverse fracture plate

Welcome to the first episode of Virtual Grand Rounds, a webinar focused on teaching skills for Orthopedic residents - this first episode will focus on the skills of plating of a fibula fracture.

October 16, 2025

Software Releases & Announcements

Turning Practice Into Measurable Improvement

Surgical training has a familiar problem: learners are motivated, but the system rarely makes it easy to translate motivation into the right practice, at the right time, with the right feedback, and the right next step. In our April release, we have intentionally redesigned PrecisionOS around learning science to address this specific issue.

March 31, 2026

Why PrecisionOS is Redefining the Future of Surgical Training by Design

April 1, 2026 - PrecisionOS’s recent announcement, “Turning practice into measurable improvement,” represents an important shift from providing a library of virtual reality content to building a deliberate coaching environment.

PrecisionOS Expands Into Podiatric Surgery

February 20, 2026 [Vancouver, BC]— PrecisionOS announced its formal expansion into podiatric surgical education, launching a case-based, just-in-time training Virtual Reality Fracture Lab featuring cases aligned with AACPM curricular recommendations.

Leading In The News

AAOS and FDA Town Hall: Emerging advances in AR, VR, and robotics reshape orthopaedic training and patient care

May 26, 2026 — At the AAOS 2026 Annual Meeting, clinical experts, industry leaders, and regulators from the Food and Drug Administration (FDA) discussed the evolving role of these tools during the AAOS/FDA Town Hall Symposium, “Augmented Reality, Virtual Reality, and Robotics.”

CNN Next Frontier: How we'll learn in 2050

The classrooms of the future will feature AI chatbots, "metaversities," VR\AR, and smart robots. CNN meets the innovators, educators and inventors bringing these new technologies to the next generation, including CEO and co-founder of PrecisionOS, Dr. Danny Goel.

June 14, 2023

The Key To Success In Medicine

I scrub in with my good friend and mentor, Dr. Danny Goel, who is an orthopaedic surgeon, educator and CEO of a virtual reality startup called Precision OS. We chat about the power of mentorship, how to achieve success in your career, and how he is using innovation and technology to introduce a whole new way of learning with his company, Precision OS.

February 21, 2022

Think Different: Do we really See One, Do One, Teach One?

Dr. Danny Goel Presents at Grand Rounds for Mass General Brigham. Mass General Brigham is an integrated academic health care system, uniting great minds to solve the hardest problems in medicine for our communities and the world.

December 22, 2023

Institutional Success

Real World Success Stories

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Dr. Andrew Maeso

PGY-3 Orthopedic Resident Kettering Health | US Air Force (Active Duty Transition)

Smiling man in a suit using PrecisionOS dental simulation software.

Dr. Ryan Lohre

Staff Surgeon | Massachusetts General Hospital (MGH) Shoulder & Elbow Surgery | MGH/Harvard Medical School

Dental professional in white coat using PrecisionOS virtual reality system.

Dr. Barry McDonough

Program Director | Orthopedic Sports Medicine West Virginia University (WVU) School of Medicine

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Dr. Ayooluwa Grabill

PGY-5 Orthopedic Fellow Western Michigan University | Kalamazoo, MI

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Dr. Charlie Spieser

PGY-2 Orthopedic Resident Kettering Health Grandview | Dayton, Ohio

Impact Consortium Updates

The IMPACT Consortium is a collaborative initiative by PrecisionOS that integrates virtual reality (VR) into orthopedic residency training. It unites residency programs, educators, and technology partners to improve surgical readiness by replacing variable case exposure with structured, data-driven simulation training. 

Key components of the program include:
  • Faculty-Optimized & Resident-Centered: Shifts foundational training to VR so faculty can focus mentorship directly in the operating room.
  • Data-Driven Evaluation: Provides objective, granular insights into a resident’s performance and readiness to enhance curriculum.
  • Collaborative Network: Programs share cases and best practices to build collective progress rather than working in isolated silos.
 
For more specific information on the curriculum’s framework or to see how programs are joining, visit the PrecisionOS IMPACT Initiative or watch the PrecisionOS Technology YouTube Channel for panels and interviews.
 

PrecisionOS IMPACT Consortium: Advancing Orthopedic Surgical Training with Virtual Reality

Join the PrecisionOS IMPACT Consortium panel—featuring Dr. Sandra Jarvis-Selinger, Dr. Danny Goyle, Tanya Romanuk, and John Brack—as they explore innovative curriculum advancements integrating virtual reality (VR) into orthopedic residency education.

November 26, 2025

Dr. Sandra Jarvis-Selinger on the PrecisionOS IMPACT Consortium | Full Interview | Impact Series

Join Dr. Sandra Jarvis-Selinger for an in-depth conversation tracing her evolution from developmental psychologist to a forefront innovator in surgical education. She highlights the power of embedding these innovations throughout the training journey to transform not only medical education but also clinical practice.

Driving Innovation in Surgical Education: The Impact Consortium & VR Training Initiative Discussion

Dr. Jarvis-Selinger shares her vision of embedding these innovations progressively throughout residency and fellowship, shaping professional identity, fostering lifelong learning, and making best practices seamlessly part of clinical culture.

Leadership & Industry Insights

PrecisionOS Talks Series

VR Professor: ACL Reconstruction with Dr. Alan Getgood

Led by renowned expert Dr. Alan Getgood and chaired by Dr. Laurie Hiemstra, with co-hosting by Dr. Liana Tedesco and Dr. Danny Goel, MD.

August 29, 2025

Surgical Training In Virtual Reality. PrecisionOSTalks with Scott Sigman, MD

PrecisionOS speaks with the incomparable Scott Sigman MD.

September 20, 2023

PrecisionOS SPRICHT: Interview mit Dr. Ruth Delaney

PrecisionOS taks with Dr. Ruth Delaney, an orthopedic surgeon in Dublin and one of our advisory board members

May 16, 2023

Building Community Through Virtual Reality. PrecisionOS Talks with Dr. Shariff K. Bishai

Dr. Bishai is an Orthopedic Surgeon Fellowship Trained in Sports Medicine, Arthroscopy, and Shoulder Surgery

September 22, 2023

A Paradigm Change In Education.PrecisionOS Talks with Dr Bamberger

PrecisionOS speaks with Dr. Bamberger, who specializes in hand and upper extremity surgery as well as microsurgery. He is especially interested in treating all ailments of the elbow.

21. September 2023

The Evolution Of Surgical Education. PrecisionOS Talks with Dr Laurie Hiemstra

PrecisionOS speaks with Dr Laurie Hiemstra, Orthopaedic Surgeon; Director of Research, Banff Sport Medicine Foundation; Professor, University of Calgary; Past President (2022-2023) - Canadian Orthopaedic Association.

September 20, 2023

Advice on Match Day. PrecisionOS Talks with Jamie E.Confino, MD

Advice on #MatchDay from Jamie Confino, MD, PGY-4 at Columbia University Irving Medical Center, who’s been conducting extensive research on PrecisionOS.

September 20, 2023

The Disruption of Surgical Education. PrecisionOS Talks with Dr. Jon Warner

How is PrecisionOS changing surgical education? We talked to Dr. Jon Warner – a renowned Shoulder Orthopedic Surgeon and a Professor of Orthopedic Surgery at Harvard Medical School.

September 20, 2023

VR Should Be Part Of The Curriculum. A PrecisionOS Talks with Dr.Javad Parvizi.

Dr. Javad Parvizi has trained 100's and impacted the lives of thousands around the world. Despite retiring from surgical practice, he continues to be a great mentor and advisor to PrecisionOS. His insights into the future continue to resonate.

September 20, 2023

PrecisionOS spricht mit Dr. Danny Goel. PrecisionOS-CEO

Talk with Dr. Danny Goel, PrecisionOS CEO about PrecisionOS's mission and vision. He digs into the problem of the absense of hands on training around the world.

September 20, 2023

Blog Articles

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21 Months of Automated VR Data

MAJOR ACADEMIC ORTHOPAEDIC RESIDENCY PROGRAM

How self-directed VR practice fills the seams of the clinical day and produces measurable learning trajectories—completely automatically.

Executive Summary:

Over a 21-month period, 30 orthopaedic residents integrated immersive VR into their training curriculum. With a simple, weekly requirement for residents to practice in headset, the platform seamlessly captured over 88,000 structured data points across 2,566 practice sessions. The resulting data proved that when residents have access to high-fidelity, frictionless simulation and are motivated, they will hone their skills and demonstrate clear performance improvements.

Frictionless Adoption: Practice doesn't compete with clinical time. The data revealed that 45% of all sessions happened organically during lunch breaks or on weekends.

Comprehensive Coverage: Usage wasn't limited to a single subspecialty. Residents attempted 61 distinct cases across 27 procedure modules, proving active engagement from Foundations & Anatomy to Complex Trauma.

Measurable Improvement: The platform didn't just track usage; it tracked skill acquisition. Across 288 scored playthroughs, longitudinal data showed a clear performance signal, with residents demonstrating an average positive learning delta of +0.36 over time.

download from the app store

Own Your Progress.

Download the PrecisionOS mobile app to access Delphi’s insight reports and turn every VR session into a springboard for future success.

Step #1

State Your Intent

Tell Delphi, your AI Attending Mentor, what you are looking to practice.

Step #2

Get Practice Recommendations

Based on your request, Delphi will suggest personalized VR apps and Video training.

Step #3

Queue Apps In VR

Tap Add to Queue and the VR app will be waiting for you in headset.

Step #4

Learn From Experts

Access the video library for expert-led Virtual Grand Rounds and discover surgical pearls from industry leaders and device experts.

Step #4

Practice With A Plan

Go through the recommended VR apps to gain the skills and repetition needed for success. 

Step #5

Review Performance Insights

After your VR session, review your personalized performance insight on your phone to maximine your OR success. 

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Dr. Andrew Maeso

Orthopedic resident

From Uncertainty to Execution

“You already have a plan, now you’re just executing it.”

The Story: Bridging the "Intern Gap"

Dr. Andrew Maeso recognizes the steep reality of residency: “As an intern, you are thrown into the fire.” For him, the hurdle wasn’t just the surgery—it was the invisible mechanics (positioning, X-ray angles, and workflow) that move too fast to learn in a high-pressure OR.

The Solution: Access Over Policy

By bringing the PrecisionOS ecosystem home, Dr. Maeso replaced passive YouTube watching with active mental rehearsal. This allowed him to arrive in the OR with the “steps” already hard-coded into his muscle memory.

The Game Changer: Personal headsets issued for at-home, 24/7 training.

Clinical Focus: Mastery of Antegrade Femoral Nails and Shoulder Arthroscopy.

Program Growth: Experience led to secured funding for all incoming residents.

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Roberto Oliveira

Founder

Over his 25 years in the gaming industry, Roberto Oliveira has been known for bringing stunning realism and high fidelity to interactive experiences.

He combines an art director’s artistic vision with solid business leadership, including experience in building art teams, creative team management, project planning, project management and business development.

Over the years, his talents have been showcased in projects for major publishers including Sony, Activision, Disney and Electronic Arts.

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Dr. Ryan Lohre

MGH Staff Surgeon

From Resident to MGH Staff Surgeon

“Prepare like it matters. Because in the OR—it does.”

The Story: The Currency of Trust

Dr. Ryan Lohre’s trajectory changed during a complex pediatric case that had already seen two failed attempts by tenured surgeons. While textbooks offered the theory, Dr. Lohre used VR to master the 3D spatial intelligence required to build a mental model of the deformity and navigate C-arm imagery in real-time.

The Solution: The 18-Minute Sandbox

The night before surgery, Dr. Lohre rehearsed the procedure four times in VR from his own home. This high-fidelity rehearsal allowed him to arrive in the OR functioning at 80-90% proficiency, compared to the typical 10-20% for a resident facing a new, complex procedure.

The Game Changer: 18 minutes of at-home VR prep for a complex pediatric case.

Clinical Focus: Spatial intelligence for C-arm interpretation and screw trajectory.

Program Growth: Transitioned from trainee to Staff Surgeon at Mass General.

Dental professional in white coat with PrecisionOS logo.

Dr. Barry McDonough

Program Director

Teaching with Surgical Efficiency

“I let the junior resident do more than ever before—and still finished on time.”

The Story: Reclaiming the OR

While at West Virginia University (WVU), Dr. Barry McDonough faced a universal challenge: balancing resident education with strict OR efficiency. By the time residents step into the OR, foundational skills like camera handling and triangulation should be second nature—not a distraction that slows down the case.

The Solution: Independent Preparation

Residents were assigned just 10 minutes of asynchronous VR training per week. This allowed them to master the “invisible” basics of arthroscopy on their own time. With an average of 17 sessions completed during the pilot, residents arrived with a mental roadmap that translated into immediate technical fluency.

The Game Changer: Asynchronous prep—residents train independently at home.

Clinical Focus: Mastery of triangulation, scope control, and anchor placement.

Program Growth: Model expanded across trauma, spine, and upper extremity.

Man in blue suit with glasses smiling in front of bookshelf.

Dr. Charlie Spieser

Orthopedic Resident

Mastering the Visuo-Spatial Gap

“VR practice shifts questioning from case generalizations to technique refinement.”

The Story: From Application to Confidence

Charlie Spieser highlights a universal resident hurdle: the high-stress transition from “book knowledge” to real-world execution. Early in training, the fear of making irreversible decisions can lead to hesitation. To bridge this gap, Charlie utilized VR as a daily resource for kinetic learning and anatomical association.

The Solution: Refining Spatial Intelligence

Unlike textbooks or passive videos, PrecisionOS allowed Charlie to practice high-stakes approaches—such as the anterior total hip—in a guided, 3D environment. This repetition provided a “safe sandbox” to identify why errors occurred, building the visuo-spatial confidence required to navigate complex anatomy before ever entering the OR.

The Game Changer: Daily Integration—normalized as an expected program resource.

Clinical Focus: Anterior Total Hip and Deltopectoral surgical approaches.

Program Growth: Nuanced Mentorship—shifting focus to specific faculty preferences.

Orthopaedic virtual reality training for junior residents in surgery.

Immersive Virtual Reality Training for a Junior Orthopaedic Surgery Resident

Andres D Maeso, DO, Michael R McDermott, DO, Jerrod A Steimle, DO

How consistent iVR training accelerates technical fluency and attending trust for first-year residents.

Executive Summary: This case study follows a first-year resident’s integration of immersive VR (iVR) into their surgical curriculum. By dedicating consistent training time to virtual modules, the resident was able to master procedural steps and receive real-time feedback in a risk-free environment before ever stepping into the operating room. The study highlights that this deliberate practice led to a “noticeable improvement in overall efficiency” and significantly increased the attending’s trust and confidence in the resident’s intraoperative capabilities.

Source Attribution: Immersive Virtual Reality Training for a Junior Orthopaedic Surgery Resident, Journal of Orthopaedic Experience & Innovation (2025).

Muscle Memory Development: The repetitive nature of immersive VR (iVR) training, combined with constant real-time feedback, allows technical surgical steps to become deep-seated muscle memory.

Measurable Efficiency Gains: Residents utilizing the platform observe a "noticeable improvement" in overall efficiency and technical proficiency when performing complex orthopedic procedures.

Accelerated Attending Trust: Preoperative rehearsal in a virtual environment significantly increases attending surgeon confidence, directly leading to increased autonomy for the resident in the operating room.

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Danny P. Goel, MD

Geschäftsführer

A practicing surgeon and surgical educator, Dr. Goel currently practices in the Vancouver, B.C. area and also serves on the University of British Columbia’s Faculty of Medicine in the Department of Orthopedic Surgery.

He received his medical degree from the University of Manitoba, pursued his residency training in orthopedic surgery at the University of Calgary, and completed fellowship training in shoulder surgery at the University of Western Ontario and Harvard University.

Goel has co-authored more than 30 publications, and is widely sought as a presenter on surgical techniques.

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Colin O'Connor

Founder

Colin O’Connor brings a proven track record as a business leader and entrepreneur, as well as expertise at developing cutting-edge technology to create immersive, high-fidelity experiences.

He has overseen and played key leadership roles in the highest echelons of the video game industry, founding companies and taking more than 16 top-tier titles to market.

He has worked at the forefront in innovating new rendering technologies in the areas of lighting, motion, particle graphics and shading that bring unprecedented realism to interactive experiences.

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