UCSF Orthopaedic Researchers Showcase Innovations at ORS 2026 Annual Meeting

March 23, 2026

ORS Meeting 2026

March 23, 2026 – San Francisco — Faculty, trainees, and research collaborators from the UCSF Department of Orthopaedic Surgery will present a broad portfolio of work at the ORS 2026 Annual Meeting, highlighting advances in musculoskeletal science through podium sessions, invited workshops, and poster presentations. The five-day meeting at the Charlotte Convention Center brings together the orthopaedic community to share discoveries, foster collaboration, and explore cutting-edge approaches in clinical and translational research.

Meeting Info:


2026 UCSF ORS Contributions

Friday 3/27/26

Theodore Miclau
Panel Discussion: ORS/OTA Strategic Research Symposium – Partnership Challenges Hindering Musculoskeletal Research Growth
Date & Time: Friday, March 27 | 8:45–9:45 AM

Chelsea Bahney
Preclinical Models Research Section and International Section of Fracture Repair Workshop: Addressing Overlooked Variables in Preclinical Fracture Repair Research for Improved Translation
Time: 2:00 – 4:30 PM | Room: E219AB

Chelsea Bahney and Jeff Lotz
OTA Strategic Research Initiative: Enhancing Funding and Partnership Meeting
Registration & Info

Chris Hernandez and Kelsey Collins
International Consensus Meeting on Preclinical Models of Osteoarthritis
Time: 2:00 – 6:00 PM
More Info


Saturday 3/28/26

Aboubacar Wague
ORS International Section of Fracture Repair Scientific Meeting: Innovations in Minimally Invasive Assessment of Bone Repair: From Mechanisms to Medicine
Presentation: Fibro-Adipogenic Progenitors at the Intersection of Regeneration and Host Defense
Time: 1:00 – 3:00 PM

Meir Marmor
Current Applications and Challenges of Artificial Intelligence Technologies in Musculoskeletal Clinical Research
Paper: The State of AI in Orthopedic Trauma
Time: 1:15 – 1:35 PM

Kyota Ishibashi
Meniscus and Mechanobiology Repair
Paper: Systemic Administration of HMGB1 Peptide Promotes Meniscal Healing via Mobilization of PDGFRa+ Mesenchymal Cells
Time: 4:40 – 4:50 PM

Girish Viraraghavan
Functional Spine Biomechanics: Insights from Imaging and Motion Analysis
Paper: Spinal Movement Impairment During Gait Persists Regardless Of Speed In Patients With Chronic Low-back Pain
Poster: PS2-159, Discriminating Hip And Spine Pathology Based On Full-body Movement Quality Analysis During Gait

Hiroyori Fusagawa
NIRA Podium, Therapeutics
Paper: Blood Flow Restriction Promotes Mitochondrial Transfer And Reduces Muscle Damage In A Duchenne Muscular Dystrophy Mouse Model
Time: 5:15 – 5:23 PM
NIRA Poster: #89 (Displayed Saturday–Tuesday)

Takuma Kaibara
NIRA Podium – Models and Imaging
Paper: Short Socket ACL Reconstruction Reduces Tunnel Widening While Maintaining Graft Maturation And Comparable Clinical Outcomes
Time: 4:32 – 4:40 PM
Poster: Same content, #59, Saturday, 6:30 – 8:00 PM

Masakazu Toi
Poster: Dynamic Changes In Dorsal Root Ganglion Neurons Following Bone Fracture
Session: PS1-044, 6:30 – 8:00 PM

Aiden Foley
Poster: Patients With Low-back Pain Have Worse Hip-specific And General Functional Recovery Following Total Hip Arthroplasty
Session: PS1-LB176, 6:30 – 8:00 PM

Alex Youn
Structural Hip Deformity
Paper: Comparing Sex-Based Transcriptomic Differences To Patient-Matched Reported Outcomes In Femoroacetabular Impingement Syndrome
Time: 11:15 – 11:25 AM

Samiha Mahin
Skeletal Muscle Disease, Growth and Aging
Paper: Machine Learning Image Classification Of Cell State Morphologies To Understand Mechanisms In The Effects Of Salubrinal And Isrib On Aging And Differentiation
Time: 11:35 – 11:45 AM

Liam Wong
Clinical Research – Health Equity
Paper: The Impact Of Healthcare Disparities On Surgical Timing For Acromioclavicular And Clavicular Injuries
Time: 4:50 – 5:00 PM

Hanzhi Zhang
Poster: Modulating The Integrated Stress Response Limits Fibrosis And Enhances Muscle Function By Redirecting Fibro/adipogenic Progenitors Differentiation After Injury
Session: PS1-040

Luke Sang
Poster: Selective Inhibition Of G9a/GLP Histone Methyltransferases Unlocks Myogenic Differentiation Potential In Human Fibro-Adipogenic Progenitors
Session: PS1-LB176

George Nakahara
Poster: Orthopaedic Surgery Outcomes In Native Hawaiian And Pacific Islander Populations Compared To Other Racial/Ethnic Groups In California
Session: PS1-LB176

Priscilla Tjandra
Poster: The Aging Milieu Drives Host Response to Gut Microbiome Alterations and Osteoarthritis in Male and Female Mice
Session: PS1

Tiffany Pham
Poster: Mouse Knee Spatial Transcriptomics Reveals Injury Programs Associated with the Infrapatellar Fat Pad in Aging
Session: PS1

Reggie Conley
Poster: Shifts in Surgical Timing and Outcomes in Geriatric Hip Fractures
Session: PS1-019

Ari Khalameyzer
Poster: Short Operative Time Benefits Frail Geriatric Patients With Trochanteric Hip Fractures
Session: PS1-019

Ria Tilve
Poster: Ultrasound Demonstrates High Sensitivity for Detecting Ankle Syndesmosis Malreductions
Session: PS1-LB176

Hailey Johnson
Poster: Using the Empatica Sensor to Characterize Postoperative Pain and Opioid Response
Session: PS1-LB176

Harlene Kaur
Poster: Clinical Outcomes Of ORIF Versus Acute THA For Posterior Wall Geriatric Acetabulum Fractures: A Systematic Review
Session: PS1-025

Daniel Theng
Poster: Automating AO/OTA Coding From Radiology Reports And Resident Descriptions Using Retrieval-augmented Large Language Models
Session: PS1-019

Calvin Wang
Poster: Predictive Models And Variables For Persistent Postsurgical Pain Following Total Knee Arthroplasty
Session: PS1-084

Timothy Keeley
Poster: Assessing The Interobserver Reliability Of The 2018 AO/OTA Fracture Classification System For Long Bone Fractures
Session: PS1-LB176


Sunday 3/29/26

Aniket Pratapneni
Podium: Validation Of Single-camera Pose Estimation For Orthopaedic Motion Analysis
Time: 8:10 – 8:20 AM | Session 24

Poster: The Effect Of Chronic Low Back Pain On Whole-body Gait Dynamics
Session: PS2-159

Hope Welhaven, PhD
Podium: TurboID Proximity Labelling Confirms the Role of Fat-joint Crosstalk in Osteoarthritis and Aging
Time: 9:31 – 9:39 AM | Session 28

Poster: Same content, NIRA, Saturday–Tuesday


Monday 3/30/26

Kelsey Collins
AAOS Orthopaedic Research Excellence Awards (OREA) and OREF Awards – The Role of Fat in Osteoarthritis
Workshop: Osteoarthritis as a Systemic Disease of the Whole Person

Luke Sang
Muscle Injury and Regeneration
Paper: Investigating The Role Of Cx43 In FAP-Mediated Mitochondrial Transfer For Muscle Regeneration After Ischemia-Reperfusion Injury
Time: 3:30 – 3:40 PM

Noah Bonnheim
NIRA – Disc, Meniscus, and Tendon
Paper: Factors Influencing The Relationship Between T1ρ MRI And T2-weighted MRI Biomarkers Of Disc Degeneration

Bethany Andoko
Multi-Organ Crosstalk Across the Musculoskeletal System
Paper: Adipose-derived Complement Factors Drive Knee Pain With Sham And Knee Injury In Aged Male Mice

Alexis Camacho
Poster: Multifidus Muscle Quality and Chronic LBP
Session: PS2-160

Nesa Milan
Poster: Cross Compartment Proteomic Profiling Of Ischemia Reperfusion Injury
Poster: Spin Bias In Randomized Controlled Trials Of Intra Articular Platelet Rich Plasma For Knee Osteoarthritis

Alex Youn
Poster: A Novel Murine Model To Detect The Chronological Progression Of Exercise-Induced Muscle Injury
Poster: Rapid AI-Based Behavioral Phenotyping For Analgesics in Rotator Cuff Injury
Poster: Peripheral And Central Nervous System Markers Of Neuropathic Pain In A Chronic Rotator Cuff Injury Model
Poster: Gabapentin’s Role In Improving Pain From Chronic Fatty Infiltration Of The Rotator Cuff

Sonali Feeley
Poster: Cortical Signatures Of Chronic Pain After Rotator Cuff Injury In Mice

Luke Sang
Poster: High Resolution In Situ Analysis Of Hindlimb Ischemia-Reperfusion Injury

Olivia Deantoni
Poster: Mild Cold Exposure Improves Fibrosis In Aged Mouse Regeneration

Hanzhi Zhang
Poster: Hif2 Deficiency Reprograms FAP Fate And Limits Fibro-Adipogenic Differentiation During Rotator Cuff Muscle Injury

Alex Brown
Poster: Integrative Stress Response Activation In Aged Label Retaining MuSCs Improves Regeneration

Steven Garcia
Poster: Dlk1 Is Necessary And Sufficient To Suppress Human Muscle Fatty Infiltration

Naomi Cinque
Poster: Defining a Role for Knee OA in Cognitive Aging in Mice

Thomas E. Nyul
Poster: Using Open-source AI to Assess Skill in Orthopedic Surgery

Uriel Rubinovich
Poster: Use of the NSQIP Database in Orthopedic Trauma Research on Fractures

Aniket Pratapneni
Poster: Chronic Low Back Pain and Whole-body Gait Dynamics

Girish Viraraghavan
Poster: Discriminating Hip And Spine Pathology Based On Full-body Movement Quality Analysis During Gait


Tuesday 3/31/26

Alex Youn
Infection – Biomarkers and Outcomes/Treatment and Therapeutics
Paper: Fibroadipogenic Progenitors Possess Endogenous Antimicrobial Properties In An Age-Dependent Fashion
Time: 8:40 – 8:50 AM

Noah Bonnheim
Clinical Research in Spine
Paper: Chronic Low Back Pain Is Associated With Accelerated Epigenetic Aging
Time: 9:25 AM

Aidan Foley
Clinical Research in Spine
Paper: Distinct Pain Distributions Among Patients With Chronic Low Back Pain Are Associated With Differences In Physical Function And Movement Quality
Time: 10:05 – 10:15 AM

Poster: Patients With Low-back Pain Have Worse Hip-specific And General Functional Recovery Following Total Hip Arthroplasty
Session: PS1-LB176, 6:30 – 8:00 PM

For more information, please visit: https://www.ors.org/2026annualmeeting/