CAOS 2025: THE 25TH ANNUAL MEETING OF THE INTERNATIONAL SOCIETY FOR COMPUTER ASSISTED ORTHOPAEDIC SURGERY
PROGRAM

Days: Monday, June 16th Tuesday, June 17th Wednesday, June 18th

Monday, June 16th

View this program: with abstractssession overviewtalk overview

10:45-12:15 Session 1: Fundamental Technology Innovations
10:45
CAOS: The 25-Year Journey from the Lab to the Operating Room
11:10
OR-X: Building the Digital Foundations for the Operating Room of the Future (abstract)
11:20
Accurate Localization of 2D Ultrasound Probes Using Inside-Out Tracking When Scanning the Neonatal Hip (abstract)
11:30
Feasibility Study on a Device for Ultrasound-assisted Placement of External Fixator Pins in Low-Resource Settings (abstract)
PRESENTER: Peter Brößner
11:40
Towards Scalable Data Collection for RGB-D Based Computer Aided Surgery (abstract)
PRESENTER: Connor Daly
11:50
Ultrasound-Integrated Spinal Surgery Tools: Emulating Proposed Designs with Conventional Probes (abstract)
PRESENTER: Luke MacLean
12:00
Comparative Study on Methods for Scaphoid Bone Model Completion from Sonography (abstract)
PRESENTER: Peter Brößner
13:15-14:15 Session 2: Clinical Outcomes
13:15
Reduced Incidence Of Mid-Flexion Instability With Force-Controlled Gap-Balancing In Total Knee Arthroplasty (abstract)
PRESENTER: Laurent Angibaud
13:25
Examining Ligament Laxity Goals Across Full Range of Motion in Total Knee Arthroplasty: A Focus on Tibia First Technique (abstract)
PRESENTER: Laurent Angibaud
13:35
Increased risk of flexion impingement and posterior instability following total hip arthroplasty (abstract)
PRESENTER: Linden Bromwich
13:45
Physical Activity Limitations Correlate with Pain Catastrophizing in Patients with End-Stage Knee Osteoarthritis: An Evaluation Using a Wearable Physical Activity Monitor (abstract)
13:55
Comparison of Clinical Outcomes Between the Slider Device and Standard Physiotherapy for Knee Osteoarthritis Patients Undergoing Knee Replacement Surgery: A Pilot Study (abstract)
14:15-14:45 Session 3: Special Poster with Teaser
14:15
Effect of age, sex, height, ethnicity, and femoral bowing on the anatomical fitting of the LCP Distal Femur plate (abstract)
PRESENTER: Beat Schmutz
14:18
Garden classification of femoral neck fracture using deep-learning algorithm (abstract)
PRESENTER: Jin Yeob Park
14:21
Preoperative knee flexion muscle strength predicts postoperative daily activity immediately after total knee arthroplasty (abstract)
14:24
Evaluating Intraoperative Dynamic Hip-Knee-Ankle Angle Under Controlled Load During Navigated Total Knee Arthroplasty (abstract)
PRESENTER: Laurent Angibaud
14:27
Open-Access 3D Bone Shape Databases in Orthopedics: An Unmet Need? (abstract)
PRESENTER: Malte Asseln
14:30
Computer-simulated corrective osteotomy for malunion after distal radius fracture normalizes bone density distribution in the subchondral radius. (abstract)
PRESENTER: Tasuku Miyake
14:33
Surgical outcomes of arthroscopic osteophyte debridement for elbow osteoarthritis using a navigation system (abstract)
PRESENTER: Ryoya Shiode
14:36
Automatic Segmentation of Forearm Bones Using Deep Learning Approaches (abstract)
14:39
When Navigating TKA, Tibia 1st Workflow Improves Functional Results Relative to Femur 1st Workflow, at 2Y Follow-up (abstract)
14:42
3D assessment of the hip joint of a patient with diffuse idiopathic skeletal hyperostosis (DISH) based on CT image (abstract)
15:30-17:00 Session 4: Intra-Operative Technologies
15:30
Pre-Resection Robotic Soft Tissue Planning Better Restores Joint Line and Achieves Comparable Balance to Post-Tibial Resection Planning (abstract)
PRESENTER: Alexander Orsi
15:40
A Novel System for Pre-resection Soft Tissue Assessment in Total Knee Arthroplasty – Accuracy and Efficiency of First 734 Clinical Cases (abstract)
PRESENTER: Alexander Orsi
15:50
Predicting the Pull-out Strength of Robot-Assisted Pedicle Screws Using Bone Mineral Density of Preset 3D Trajectory (abstract)
16:00
Integration of Augmented Reality for Navigation of Periacetabular Osteotomy (abstract)
PRESENTER: Hisham Iqbal
16:10
Enhancing Standard Operation Procedures to design SDC Workstations for Cervical Decompression and Spinal Fusion (abstract)
PRESENTER: Okan Yilmaz
16:20
Accuracy and Precision of Computer-Assisted Surgery Compared with Conventional Instrumentation for Total Ankle Arthroplasty (abstract)
PRESENTER: Matthew Rueff
16:30
Experience with Surface Navigation-Guided Minimally Invasive Pedicle Screw Insertion Without Bone-Anchored Trackers in Dynamic Environments (abstract)
PRESENTER: Mingxing Fan
Tuesday, June 17th

View this program: with abstractssession overviewtalk overview

09:00-10:30 Session 5: 3D Surgical Planning
09:00
Preliminary Clinical Outcome of Virtual Surgical Planning to Assist Reverse Total Shoulder Arthroplasty (abstract)
09:10
Statistical Shape Models for the planning of TKA surgery (abstract)
PRESENTER: Anna Gounot
09:20
Variation in preoperative 3D planning for total hip arthroplasty across hip surgeons (abstract)
PRESENTER: Ryo Higuchi
09:30
Computerised restoration of centre of rotation in primary total hip arthroplasty (abstract)
PRESENTER: Johann Henckel
09:40
A Pre-Operative Planning Tool for Patient Specific Guide Stability Assessment: An Experimental Validation (abstract)
09:50
Identifying Mini-Plate Configurations with High Predicted Bone Union Propensity for Mandibular Reconstruction Surgery (abstract)
PRESENTER: Merlin Bettin
10:00
Systematic Rule-Based Regional Radiologic Classification of Traumatic Pelvic Ring Fractures: An Observer Variability Study (abstract)
PRESENTER: Roey Ben Yosef
10:10
Can we Predict Robotic-Assisted Surgical Plans in Total Knee Arthroplasty? A Machine Learning Story (abstract)
PRESENTER: Alexander Orsi
10:20
3D alignment analysis principles: an international Delphi consensus study (abstract)
PRESENTER: Quinten Veerman
11:00-12:30 Session 6: Patient-Specific Treatment & Personalized Health
11:00
Driven by Innovation - Developments in CAS
11:25
Utility of muscle cross-sectional area in screening whole-body skeletal muscle mass loss (abstract)
PRESENTER: Sotaro Kono
11:35
Computational Modelling Shows a Clinically Significant Difference Between the Internal and External Proximal Femoral Canal Shape (abstract)
PRESENTER: Johann Henckel
11:45
Targeting Functional Deficits: Associations Between Distal Femur Morphology and Passive and Dynamic Frontal Plane Knee Kinematics in Arthroplasty Patients for Personalized Robotic Surgery. (abstract)
PRESENTER: Nadim Ammoury
11:55
Impact of the Individual Femoral Degree of Freedom on the Restoration of the Trochlea – A Sensitivity Analysis (abstract)
PRESENTER: Laurent Angibaud
12:05
Predicting CT-based Coronal Plane Knee Phenotype Parameters using Imageless Navigation and Machine Learning (abstract)
PRESENTER: Alexander Orsi
12:15
Evaluating the impact of robotic assisted personalized alignment in TKA on coronal plane alignment and associated functional outcomes (abstract)
PRESENTER: Mark Maher
13:30-15:00 Session 7: Artificial Intelligence in Orthopaedics
13:30
Application of Unsupervised Machine Learning to Classify Dynamic Knee Alignment in Total Knee Arthroplasty Using a Computer Assisted Orthopaedic Surgery System (abstract)
PRESENTER: Laurent Angibaud
13:40
Automatic Classification of Traumatic Pelvic Ring Fractures Based On a Rule-Based Regional Radiologic Classification Method (abstract)
PRESENTER: Roey Ben Yosef
13:50
Multi-Anatomy Simulations with Graph Neural Network (abstract)
PRESENTER: Xintian Yuan
14:00
From Unlabeled Data to Clinical Applications: Foundation Models in Medical Imaging (abstract)
14:10
Use of Regression and Machine Learning to Predict Spinopelvic Mobility 1 Year after Total Hip Arthroplasty (abstract)
PRESENTER: Linden Bromwich
14:20
Expert Validation of CT-Based Machine Learning Model for Segmentation and Quantification of Deltoid Muscles for Shoulder Arthroplasty (abstract)
14:30
Anatomical Shoulder Construction Conformity Evaluation, Based on Deep Learning Uncertainty Estimation (abstract)
14:40
Machine learning-based automatic implant size prediction for total knee arthroplasty using bone dimensions (abstract)
14:50
Quantifying Segmentation Uncertainty to Evaluate the Quality of ML Generated Deltoid Masks in Shoulder Arthroplasty Patients (abstract)
15:30-17:00 Session 8: Education & Training
15:30
Early Learning Curve in Robotic-Assisted Total Knee Arthroplasty (abstract)
PRESENTER: David Putzer
15:40
Enhancing Orthopedic Surgical Training With Interactive Photorealistic 3D Visualization (abstract)
PRESENTER: Roni Lekar
15:50
Effect of Simulator Fidelity on Trainee Satisfaction and Skill Acquisition in Arthroscopic Surgery Training for novices: A Randomized Controlled Trial (abstract)
16:00
Evolving simulation-based education in trauma care: a user-perspective on implementation requirements (abstract)
PRESENTER: Andreas Arnegger
16:10
AO’S NOVEL DIGITAL ENHANCED HANDS-ON SURGICAL TRAINING (DEHST) TECHNOLOGY IMPROVES THE SKILLS LEVEL OF NOVICES IN DISTAL INTRAMEDULLARY NAIL INTERLOCKING (abstract)
PRESENTER: Jan Buschbaum
16:20
Impact of Virtual Reality-Based Preoperative Planning on the Comprehension of Orthopedic Surgery Residents in Trauma Surgeries (abstract)
PRESENTER: Haruki Fujikawa
16:30
Learning curves of robot-assisted pedicle screw fixations based on the cumulative sum test (abstract)
PRESENTER: Qi Zhang
16:40
8 Years of Shoulder Navigation, an Intra-Operative Performance Study (abstract)
Wednesday, June 18th

View this program: with abstractssession overviewtalk overview

09:00-10:30 Session 9: Intraoperative 3D Imaging
09:00
The OP Innovation Center: Advancing Education for Surgical Technicians
09:25
FAROS: Improving robotic spine surgery through multi-modal, non-visual sensing (abstract)
09:35
Semantic and Spatial Acoustic Sensing for Scene and Context Understanding in Orthopedic Interventions (abstract)
09:45
Computer-Assisted Fluoroscopic Navigation Is Cost Effective Compared to Robotic-Assisted and Manual Surgery in Total Hip Arthroplasty (abstract)
09:55
X-Ray Based Approach to Assess the Femoral Torsion Intraoperatively (abstract)
PRESENTER: Björn Kreher
10:05
COMPARISON OF INTRAOPERATIVE IMAGING BETWEEN A FULLY MOTORIZED AND A NON-MOTORIZED MOBILE 3D C-ARM ON THE LOWER EXTREMITY IN TRAUMA SURGERY (abstract)
PRESENTER: Luca Rübel
10:15
Metal Artifact Avoidance: Improved CBCT Image Quality through Tilted C-Arm 3D Scans (abstract)
10:25
Reliability of Optically Tracked 2D Ultrasound System is Comparable to Existing 3D Ultrasound Systems (abstract)
PRESENTER: Kexin Katie Chen
11:00-12:30 Session 10: Applied Biomechanics for CAOS
11:00
Towards a Y-shaped pelvic osteotomy to address loss of lumbar lordosis (abstract)
11:10
Biomechanical assessment of gluteus maximus and tensor fasciae latae transfer in abductor mechanism deficiency after total hip arthroplasty: A cadaveric study (abstract)
PRESENTER: Kohei Kono
11:20
Enhanced Generation of Synthetic Arthropathic Glenohumeral Anatomy: A Combined Two-Body Statistical Shape Model Approach (abstract)
PRESENTER: Joshua W. Giles
11:30
Evaluation of automatic HJC definition (abstract)
PRESENTER: Luisa Berger
11:40
Resection accuracy affects stemless shoulder implant stability (abstract)
PRESENTER: Ghislain Maquer
11:50
Analysis of Surgical Parameters in High Tibial Osteotomy: Effects on Resultant Tibiofemoral Force Position (abstract)
PRESENTER: Theresa Kandels
12:00
Effect of Preconditioning the Medial and Lateral Collateral Ligaments with 120 N in TKA (abstract)
PRESENTER: Alexander Orsi