Evidence Engine
A controlled path from question to reviewable output.
OrthoScienus · Evidence, judgment, education
Clear thinking.
Honest evidence.
Better decisions.
Practical tools and rigorous frameworks for surgeons who want to reason clearly, communicate risk honestly, and learn from every case.
Start with something useful
Free instruments for clearer conversations.
Translate risks into natural frequencies, put confidence intervals before thresholds, and test whether a paper’s conclusion is doing more work than its evidence.
The framework
Rigor that behaves like a system.
OrthoScienus connects research production, risk communication, and deliberate practice. Each layer makes the next one more trustworthy.
Estimation First
Magnitude and precision before threshold labels.
Verification Layer
Guidelines scored and citations checked.
Decision Journal
Prediction, outcome, debrief, update.
Released work
Built, tested, and available.
The public portfolio shows completed releases only. Active manuscripts, internal milestones, and operational notes stay in the private cockpit.
2026OrthoScienus Evidence EngineSpecification-first research production with guideline and citation gates.released2026Surgeon ConsoleFree browser tools for appraisal, risk communication, and preparation.released2026Decision Journal v1.3A proof of concept for prediction, outcome review, and calibration.released
View selected work and publications OrthoScienus Teaching
The tools are the instruments. Learn the judgment behind them.
Short, practical lessons in uncertainty, estimation, systems, and deliberate practice—built for surgeons between cases.
Explore teachingFounder
Jack Walsh, DO
Arthroplasty Surgeon-Scientist · Primary and revision hip and knee replacement