Public portfolio

Finished work, with the label still attached.

Only released or published work appears here. Evidence labels describe what each item is—and what it is not.

Geometric analyses

See the shape of the evidence.

Interactive teaching views make joint outcomes, tails, and tradeoffs visible. Every analysis separates published quantities from illustrative geometry.

2026interactive

Clinical phase space · Fibular nail vs ORIF

The cluster doesn’t move. The tail disappears.

An interactive view of similar 12-month function alongside markedly different complication tails. Toggle between published estimates and a simulated patient cloud, resample the cohort, and translate the pooled risk ratio across illustrative baseline risks.

Simulation clearly labeled: patient-level dots, soft-tissue scores, and their pairing are illustrative—not measured.

Published inputs: 5/109 vs 21/103 complications; functional SMD 0.11; pooled risk ratio 0.30.

Open analysis

Decision aids & evidence briefs

Useful evidence, built for the conversation.

Patient-facing natural-frequency aids, fast-and-frugal clinical frameworks, and concise surgeon references. Open any reviewed PDF in the browser or download a copy.

Shared decisions

Patient decision aids

Natural frequencies, recovery paths, alternatives, and questions patients can use in conversation.

4 briefs

Patients & cliniciansPDF · 3 pages

Hip Arthroscopy for Femoroacetabular Impingement / Labral Repair

A patient-facing natural-frequency guide to expected recovery, meaningful benefits, complications, alternatives, and questions to bring to shared decision-making.

Open PDF Download

Patients & cliniciansPDF · 3 pages

Periacetabular Osteotomy for Acetabular Dysplasia

A visual decision aid that sets out the recovery path, potential benefits, important risks, alternatives, and practical questions surrounding PAO.

Open PDF Download

Patients & cliniciansPDF · 3 pages

Primary Total Hip Arthroplasty

Natural-frequency outcome and risk profiles, a readable recovery curve, alternatives, and prompts for a more transparent hip replacement conversation.

Open PDF Download

Patients & cliniciansPDF · 3 pages

Primary Total Knee Arthroplasty

A patient-readable view of likely outcomes, recovery, complications, alternatives, and the questions that matter before total knee replacement.

Open PDF Download

Fast-and-frugal trees

Clinical evidence frameworks

Compact cue hierarchies that show the evidence, threshold logic, and cost of getting a decision wrong.

5 briefs

CliniciansPDF · 2 pages

Hip Dislocation Risk after Total Hip Arthroplasty

A fast-and-frugal decision framework comparing component and approach strategies, cue validity, and the asymmetric consequences of error.

Open PDF Download

CliniciansPDF · 3 pages

Hip Instability: Clinical Diagnosis

A clinical cue hierarchy for atraumatic instability, including a Beighton replacement, validity ranking, and threshold rationale.

Open PDF Download

CliniciansPDF · 2 pages

PJI Revision Staging: One Stage vs Two

A one-stage versus two-stage revision decision tree with ranked cues, evidence notes, and explicit asymmetric-error reasoning.

Open PDF Download

CliniciansPDF · 2 pages

Antibiotic Duration after Implant Debridement

A post-DAIR duration framework that ranks decision cues and keeps residual uncertainty visible instead of implying a universal rule.

Open PDF Download

CliniciansPDF · 2 pages

VTE Prophylaxis Duration after Total Joint Arthroplasty

A fast-and-frugal framework for prophylaxis duration after TJA, pairing a compact decision tree with evidence and cue-validity rankings.

Open PDF Download

At the point of care

Clinician counseling references

One-page prompts for explaining outcomes, complications, alternatives, and uncertainty clearly.

3 briefs

CliniciansPDF · 1 page

Hip Arthroscopy Counseling Crib Sheet

A one-page surgeon reference for explaining FAIS, likely outcomes, complications, alternatives, and the shared decision in plain language.

Open PDF Download

CliniciansPDF · 1 page

THA, TKA & Revision: One-Page Quick Reference

A compact clinician reference for counseling, expected outcomes, important complications, and evidence across primary and revision arthroplasty.

Open PDF Download

CliniciansPDF · 1 page

Total Knee Replacement Counseling Crib Sheet

A one-page surgeon reference for discussing knee osteoarthritis, expected benefit, recovery, complications, alternatives, and uncertainty.

Open PDF Download

OrthoScienus releases

Available now.

2026released

OrthoScienus Evidence Engine

Specification-first research production with guideline and citation gates.

Documented operating framework

View release

2026released

Surgeon Console

Free browser tools for appraisal, risk communication, and preparation.

Working browser tools

View release

2026released

Decision Journal v1.3

A proof of concept for prediction, outcome review, and calibration.

Released proof of concept

View release

Selected publications

Identity-matched scholarly work.

Each record has a verified PMID or DOI and an authoritative public link. This is a selected list, not a complete bibliography.

2025

Agreement of Coronal Limb Alignment Measures in Total Knee Arthroplasty: Comparative Analysis of Radiographic and Robotic Measurement in a Retrospective Cohort

Walsh J, Moyer BS, Anthony T, Challa S, Bui D, Nishiyama S

Journal of Orthopaedic Experience & Innovation

DOI 10.60118/001c.132267

Authoritative record ResearchGate

2023

Orthopaedic Knee Scooter-Related Injury: Prevalence and Patient Safety Perception in a Prospective Cohort With Exploratory Risk Factor Analysis

Walsh JP, Hsiao MS, Rosevear L, McDermott R, Gupta S, Watson TS

Journal of Orthopaedic Surgery and Research

DOI 10.1186/s13018-023-04124-6

Authoritative record ResearchGate

2022

The Effect of Hydroxyapatite on Titanium Pedicle Screw Resistance: An Electrical Model

Davis S, Walsh JP, Crosby S, Kabins M, Weyand T, Lee D

The Spine Journal

DOI 10.1016/j.spinee.2021.11.009

Authoritative record ResearchGate

2018

Outcomes of Hip Arthroscopy in Adolescents: A Comparison of Acute Versus Chronic Presentation. Two-Year Minimum Follow-up

Ashberg L, Walsh JP, Yuen LC, Perets I, Chaharbakhshi EO, Domb BG

Journal of Pediatric Orthopaedics

PMID 29189530DOI 10.1097/BPO.0000000000001094

Authoritative record

2018

Patient-Reported Outcomes of Capsular Repair Versus Capsulotomy in Patients Undergoing Hip Arthroscopy: Minimum 5-Year Follow-up—A Matched Comparison Study

Domb BG, Chaharbakhshi EO, Perets I, Walsh JP, Yuen LC, Ashberg LJ

Arthroscopy

PMID 29373289DOI 10.1016/j.arthro.2017.10.019

Authoritative record

2018

Arthroscopic Technique for Iliopsoas Fractional Lengthening for Symptomatic Internal Snapping of the Hip, Iliopsoas Impingement Lesion, or Both

Chandrasekaran S, Close MR, Walsh JP, Chaharbakhshi EO, Lodhia P, Mohr MR, Domb BG

Arthroscopy Techniques

PMID 30258772DOI 10.1016/j.eats.2018.06.001

Authoritative record

2017

Femoral Derotation Osteotomy Technique for Excessive Femoral Anteversion

Hartigan DE, Perets I, Walsh JP, Domb BG

Arthroscopy Techniques

PMID 29354448DOI 10.1016/j.eats.2017.05.027

Authoritative record

2018

Robot-Assisted Total Hip Arthroplasty: Clinical Outcomes and Complication Rate

Perets I, Walsh JP, Close MR, Mu BH, Yuen LC, Domb BG

International Journal of Medical Robotics and Computer Assisted Surgery

DOI 10.1002/rcs.1912

Authoritative record

Media & presentations

Technique, evidence, and decision-making.

Curated public editions include source notes, selected reading, quotation checks, and visual credits. They are educational frameworks—not clinical recommendations or patient-specific forecasts.

2024video

Hana Table Patient Positioning and Setup: Pearls and Pitfalls

American Academy of Orthopaedic Surgeons

Practical technique education on patient positioning, setup, and avoidable failure points for the direct anterior approach.

AAOS video

View at AAOS

2026presentation

Risk or Uncertainty?

OrthoScienus public presentation

Risk literacy, fragility, natural frequencies, and the limits of translating population averages to one patient.

27-slide cited PDF

View presentation

2026presentation

Certainty Causes Crises

Evidence-Based Orthopaedics · Evidence-Based Medicine · Evidence-Based Medical Harm

A unified argument about models, evidence, harm, and what markets, medicine, and war teach us about the known and unknowable.

37-slide cited PDF

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2026presentation

Navigating Complexity

OrthoScienus public presentation

A practical framework for reasoning when clinical systems are adaptive, nonlinear, and resistant to simple rules.

Cited PDF

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2026presentation

Noise: A Unified Philosophy of Uncertainty

OrthoScienus public presentation

How unwanted variability, irreducible uncertainty, and calibration shape judgment in medicine and beyond.

Cited PDF

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2026presentation

The Art and Science of Medicine

OrthoScienus public presentation

Why good medicine requires evidence and method without pretending that judgment, context, and humanity can be engineered away.

Cited PDF

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2026presentation

M&M: From Tradition to Impact

OrthoScienus public presentation

A systems-oriented redesign of morbidity and mortality conference—from retrospective ritual to measurable learning.

Cited PDF

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