CAOS 2023: THE 22ND ANNUAL MEETING OF THE INTERNATIONAL SOCIETY FOR COMPUTER ASSISTED ORTHOPAEDIC SURGERY
PROGRAM

Days: Wednesday, June 7th Thursday, June 8th Friday, June 9th Saturday, June 10th

Wednesday, June 7th

View this program: with abstractssession overviewtalk overview

13:00-14:30 Session 2A: Workshop 1: CAOS Robotics Focus Group

Chairs: K. Deep and M. de la Fuente

 

Robotics and AI are becoming increasingly important in our lives. Some aspects are already being taken over without us noticing. Use of robotics and AI in medicine and surgery will be the future. In this workshop at CAOS 2023 we will discuss the clinical results, implementation and implications of available robotic options and technological developments in the field. Along with talks, an expert faculty panel discussion with active audience participation will be the highlight of the workshop. Compare your own robotic results, research and discuss your experience.

"Recent and future technical developments in orthopaedic robotics": Matias de la Fuente, Aachen Germany

"Introducing Robotic Technology in your department: logistics, problems and solutions": Charoenwat Uthaicharatratsame, Rajathanee Hospital, Thailand

"Present use of robotics in orthopaedics and clinical results": Frederic Picard, Glasgow UK

"Future clinical requirements from robotics in orthopaedics": K Deep, Glasgow UK

"Faculty Panel Discussion"

 

Faculty

Matias de la Fuente, Germany

Frederic Picard, UK

Keerati Chareoncholvanich, Thailand

Asim Khan, UK

Charoenwat Uthaicharatratsame, Thailand

Kamal Deep, UK

13:00-14:30 Session 2B: Workshop 2: CAOS Ultrasound and AI Focus Group

Chairs: A. Hodgson and I. Hacihaliloglu

Ultrasound is emerging as a more prominent modality in orthopaedic surgery for both diagnostic and interventional applications.  Given the relatively low signal-to-noise ratio in ultrasound images, there are significant challenges in automatically processing the images to make use of the information, especially in near-realtime applications such as intraoperative guidance.  In this workshop, we will discuss the following topics:

1. Update on Bone in Ultrasound (BonUS): A Systematic Evaluation of Bone Segmentation Methods on a Multi-Institution Dataset - Prash Pandey, UBC

2. Impact of Variations in Manual Bone Segmentations on Bone Surface Identification - Ilker Hacihaliloglu, UBC

3. Contributions of Various Error Sources in US-based Bone Reconstruction: Identification of Relevant Research Areas - Benjamin Hohlmann, Aachen University

4. Free discussion

14:30-15:00Coffee Break
15:00-16:30 Session 3A: Workshop 3: CAOS Oncology Focus Group Workshop

Chairs: KC Wong and P. Jutte

Computer-Assisted Tumor Surgery (CATS) has been used in orthopedic oncology for over 15 years. The digital workflow and assistive tools (computer navigation and later 3D printed guides) enable surgeons to replicate complex surgical planning in bone tumor resection and reconstruction for better oncological and functional results. In this oncology workshop at CAOS international congress 2023, expert faculty will share the practical aspects of CATS and how computer navigation can assist in oncology surgery. It will be followed by a demonstration of navigation-assisted tumor resection, highlighting tips and tricks. Interested cases will be discussed. 

15:00-15:15 “Basics in navigation-assisted tumor surgery.” 

15:15-15:30 “Interested cases” (Dr Piya Kiatisevi)

15:30-15:45 “Interested cases (Prof Paul Jutte)

15:45-16:15 Navigation-assisted tumor resection demonstration

16:15-16:30 Q&A

Faculty

Dr Piya Kiatisevi, Thailand

Prof Paul Jutte, the Netherlands

15:00-16:30 Session 3B: Workshop 4: CAOS Applied Biomechanics Focus Group

Chairs: J. Giles and K. Radermacher

“Applied Biomechanics for CAOS – Potential of upcoming tools and need for new criteria ?”

Date: 7th June 2023 (Wednesday)

Time 15:00-16:30h: CAOS Applied Biomechanics Focus Group

Venue: CAOS 2023 Hilton Pattaya 333 101 Moo 9, Nong Prue, Banglamung, Pattaya, Chonburi, 20260, Thailand

Basic principles of biomechanics have been introduced to orthopaedic surgery by early pioneers since the early day of the 19th century. Although advances in computer technology offer new options to integrate biomechanics in the clinical workflow for planning of surgical therapy and rehabilitation, biomechanical modelling and simulation still is not broadly established in clinical routine. Whereas the relevance of morpho-functional biomechanics for the therapeutical outcome is widely accepted in general, the availability and application of efficient and validated tools and criteria for clinical routine CAOS is still limited. Against this background, the workshop addresses two main topics related to enhanced patient specific morpho-functional planning:

Round Table 1) (30 minutes): Upcoming technical tools

Joshua Twiggs (Sydney): Actual challenges and potentials of new tools in terms of patient specific biomechanical planning ? (Introductory Talk; 10 Min.) > Open Discussion (challenges and potential for concerted research actions)

Round Table 2) (30 minutes): Clinical evaluation

Sonja Grothues and Luisa Berger (Aachen): Are standard clinical scores and PROMs adequate in terms of their sensitivity to the therapeutic benefits of accepted biomechanical planning targets ? (Introductory Talk with focus on THA & TKA (10 Min.) > Open Discussion (challenges and potential for concerted actions)

Panelists

Josh Giles, CD

Kamal Deep, UK

Joshua Twiggs, Australia

Sonja Grothues, Germany

Luisa Berger, Germany

Klaus Radermacher, Germany

Thursday, June 8th

View this program: with abstractssession overviewtalk overview

08:30-09:00 Session 6: Special Lecture 1
08:30
Perspectives in Robotics, AI and GPT
09:00-10:40 Session 7: Knee Session
09:00
Improved Prediction of Postoperative Knee Function Using Preoperative Patient Factors and Intraoperative Measures of Bony Resection, Ligament Release, and Implant Alignment in Total Knee Arthroplasty: A Database Analysis of 363 Cases (abstract)
PRESENTER: Matthew D Hickey
09:12
Rotational Laxity at Initial Flexion Range Decreases from Preoperative Level in Cruciate-Retaining Total Knee Arthroplasty (abstract)
PRESENTER: Takashi Tsuda
09:24
Measured Resection and Gap Balancing Techniques Result in Similar Femoral Component Rotations Regardless of Preoperative Coronal Deformity: A Database Analysis of 3922 Cases (abstract)
PRESENTER: Alistair Ewen
09:36
Midterm Result of Computer-Assisted Navigation Total Knee Replacement for Knee Osteoarthritis with Extra-Articular Deformity (abstract)
PRESENTER: Mohamed Askar
09:48
Functional References for Tibial Axial Rotation in Total Knee Arthroplasty (abstract)
PRESENTER: Ishaan Jagota
10:00
Changes in the position of the femur relative to the tibia impacts on the clinical results in total knee arthroplasty (abstract)
10:12
Mechanical vs Arithmetic Definitions of Coronal Plane Alignment of the Knee (CPAK) Measures Have Different Distributions: An Assessment of 3947 Cases (abstract)
PRESENTER: Asim Khan
10:24
The Coronal Plane Alignment of the Knee classification does not correlate with the lower limb phenotype. (abstract)
PRESENTER: Jean-Yves Jenny
10:30-16:45 Session 8: Poster Room Open
Poster 1 - Accuracy of an augmented reality based portable navigation system (AR-HIP) for total hip arthroplasty in the lateral decubitus position. (abstract)
Poster 2 - Knee Extension Is Related to the Posteriorly Deviated Gravity Line to the Pelvis in Young Adults: Radiographic Analysis Using Low-Dose Biplanar X-ray (abstract)
PRESENTER: Jun Young Park
Poster 3 - Advanced Active Robotic Total Knee Arthroplasty: A Learning Curve of Operative Time and Alignment Accuracy (abstract)
PRESENTER: Yong-Beom Park
Poster 4 - Arthroscopic Assisted Tibial Tunnel Placement in Anterior Cruciate Ligament with A Smart Handheld Robot: A Cadaver Study (abstract)
PRESENTER: Shuo-Suei Hung
Poster 5 - Does registration with distal points increase accuracy and precision for femoral stem placement in CT-based navigation assisted THA? (abstract)
Poster 6 - Accuracy and precision of cementless and cemented stem placement using CT-based navigation. (abstract)
Poster 7 - Hip instability in Developmental Dysplasia of the Hip during weight-bearing (abstract)
PRESENTER: Shinichiro Sakai
Poster 8 - Functional Alignment (FA) Provide Better Gap Balance & Less Bony Resection compared to modified Kinematic Alignment (mKA) in Primary Total Knee Arthroplasty (abstract)
PRESENTER: Bo-Ram Na
Poster 9 - Comparison of Acetabular Cup Positioning between Robotic Arm-Assisted Versus Computed Tomography-Based Navigation Total Hip Arthroplasty (abstract)
PRESENTER: Akira Shimizu
Poster 10 - Using Augmented Reality-Based Portable Navigation System leads to accurate acetabular cup placement even in low volume hospital (abstract)
PRESENTER: Chihiro Hiraoka
Poster 11 - Measurement of Osteotomy Angle to the Femoral Neck Axis using three dimensional-computed tomography after Curved Varus Osteotomy for Osteonecrosis of the Femoral Head (abstract)
Poster 12 - Drill Tool Alignment by a Force Controlled Smart Handpiece (abstract)
PRESENTER: Hao-Cheng Zuo
Poster 13 - Usefulness of the navigation system in obtaining coronal axis of total knee arthroplasty. (abstract)
PRESENTER: Seo-Ho Lee
Poster 14 - Correlation between score values and morphofunctional parameters in THA (abstract)
PRESENTER: Luisa Berger
Poster 15 - Tension of Gap Resection in Robotic assisted Total Knee Arthroplasty (abstract)
Poster 16 - Changes of acetabular anteversion according to pelvic tilt on sagittal plane under various acetabular inclinations (abstract)
PRESENTER: Suk-Kyoon Song
Poster 17 - Reduction Of The Fibula With Syndesmostic Instability (Ao/Ota Classification 44c Type) Using Intraoperative 3d Image (abstract)
PRESENTER: Naofumi Shiota
Poster 18 - Utility of O-arm Navigation in Spinal Tumors Excluding Screw Placement (abstract)
PRESENTER: Yusuke Murakami
Poster 19 - The Accuracy Of Dr LCT; Newly Developed Multi-Axial Robot Arm System (abstract)
PRESENTER: Soo-Hyun Lee
Poster 20 - Intraoperative Computer Assisted Tumor Surgery (CATS) For Oncological Resections In Musculoskeletal Oncology – Early Results From A Tertiary Cancer Centre (abstract)
PRESENTER: Ashish Gulia
Poster 21 - Femoral implant size optimization for total knee replacement (abstract)
PRESENTER: Sonja Grothues
Poster 22 - Why Computer-assisted Orthopedic Surgery (CAOS)? The Biological Impacts of Intramedullary Reaming During Conventional Total Knee Arthroplasty (TKA) (abstract)
PRESENTER: Shu-Jui Kuo
10:40-11:10Coffee Break
11:10-12:15 Session 9: Tumor Session
11:10
Invited Lecture: Computer-assisted Tumor Surgery (CATS) in orthopaedics oncology: What I have learnt?
11:30
A Fast and Accurate Dangerous Region Generation Method for Computer-assisted Bone Tumor Resection Surgery (abstract)
PRESENTER: Yu Zhang
11:42
Allograft or combined allograft/autograft reconstruction after oncological resection, using CAS or PSI, a multicenter retrospective study (abstract)
PRESENTER: Jasper Gerbers
11:54
Mixed Reality improves 3D visualization and spatial awareness of bone tumors in Orthopaedic Oncology: a proof of concept study (abstract)
PRESENTER: Kwok-Chuen Wong
13:15-14:15 Session 11: CAOS Thailand
13:15
Short-term clinical & radiologic outcomes of Imageless - robotic assisted total knee arthroplasty versus conventional total knee arthroplasty in Thabo Crown Prince Hospital: Retrospective cohort study (abstract)
13:27
Stress Shielding in the Proximal Tibia after Total Knee Arthroplasty: A Finite Element Analysis of 2-and 4-mm-thick Tibia Prosthesis Models (abstract)
13:39
Comparison Clinical outcomes robotic-assisted versus Conventional unicompartmental knee arthroplasty: 10-years survivorship (abstract)
13:51
Robotic-assisted Total Hip Arthroplasty in Secondary Osteoarthritis of The Hip Joint Due to Developmental Hip Dysplasia: A Systematic Review And Meta-analysis (abstract)
14:03
Computer assisted surgery reduced inflammatory response in total knee arthroplasty: A double blinded randomized control trial study (abstract)
PRESENTER: Pruk Chaiyakit
14:15-14:45 Session 12: Poster Teaser
14:15
Poster 4 - Arthroscopic Assisted Tibial Tunnel Placement in Anterior Cruciate Ligament with A Smart Handheld Robot: A Cadaver Study (abstract)
PRESENTER: Shuo-Suei Hung
14:18
Poster 5 - Does registration with distal points increase accuracy and precision for femoral stem placement in CT-based navigation assisted THA? (abstract)
14:21
Poster 7 - Hip instability in Developmental Dysplasia of the Hip during weight-bearing (abstract)
PRESENTER: Shinichiro Sakai
14:24
Poster 10 - Using Augmented Reality-Based Portable Navigation System leads to accurate acetabular cup placement even in low volume hospital (abstract)
PRESENTER: Chihiro Hiraoka
14:27
Poster 11 - Measurement of Osteotomy Angle to the Femoral Neck Axis using three dimensional-computed tomography after Curved Varus Osteotomy for Osteonecrosis of the Femoral Head (abstract)
14:30
Poster 12 - Drill Tool Alignment by a Force Controlled Smart Handpiece (abstract)
PRESENTER: Hao-Cheng Zuo
14:33
Poster 13 - Usefulness of the navigation system in obtaining coronal axis of total knee arthroplasty. (abstract)
PRESENTER: Seo-Ho Lee
14:36
Poster 16 - Changes of acetabular anteversion according to pelvic tilt on sagittal plane under various acetabular inclinations (abstract)
PRESENTER: Suk-Kyoon Song
14:39
Poster 18 - Utility of O-arm Navigation in Spinal Tumors Excluding Screw Placement (abstract)
PRESENTER: Yusuke Murakami
14:42
Poster 6 - Accuracy and precision of cementless and cemented stem placement using CT-based navigation. (abstract)
14:45-15:15Coffee Break
15:15-16:15 Session 13: Symposium - Surgical Lessons Learned from CAOS & Robotics in Everyday Practice

This symposium is composed of a series of invited presentations by a range of surgeons that use CAOS and Robotics in their everyday practice including in non-research centers. These presentations will discuss lessons learned. 

15:15
Handheld Navigation vs Robotic Assisted TKA
15:23
CAOS In My Practice
15:31
Stem Insertion in THA using MAKOplasty and CT-based Navigation
15:39
THA in DDH with Robotic Assisted Surgery
15:47
My Experience in Robotic Knee Arthroplasty: Pros & Cons
15:55
Group Discussion
16:15-17:30 Session 14: Robotics Session
16:15
Does Robotic Assistance help with bone preservation in Total Knee Replacement? (abstract)
PRESENTER: Varun Roheet S S
16:27
An observational comparative study on post-operative pain and functional outcome in patients undergoing Conventional versus Robotic assisted Total knee arthroplasty. (abstract)
16:39
Comparison of the accuracy of acetabular cup placement between robotic-assisted standard and complex THA: A retrospective study (abstract)
PRESENTER: Hui Li
16:51
Evaluation of short-term outcomes of the ROSA knee system (abstract)
PRESENTER: Duncan Renton
17:03
Learning curve of robot-assisted total knee arthroplasty and its effects on implant position in Asian patients: A prospective study (abstract)
PRESENTER: Ji Hyo Hwang
Friday, June 9th

View this program: with abstractssession overviewtalk overview

08:00-09:40 Session 16: Biomechanics & Modelling Session
08:00
Approach towards psoas syndrome risk modeling in preoperative planning for THA (abstract)
PRESENTER: Luisa Berger
08:12
Novel Patellofemoral Ligament Modelling To Detect Anterior Knee Pain After Total Knee Arthroplasty (abstract)
PRESENTER: Ishaan Jagota
08:24
Can thigh circumference predict thigh muscle volume? -Analysis using deep learning- (abstract)
PRESENTER: Sotaro Kono
08:36
Can We Predict the Femoral and Tibial Bone Resection Depths Required to Correct Extreme Fixed Flexion Contracture in Total Knee Arthroplasty? A Database Analysis of 127 Cases (abstract)
PRESENTER: Frederic Picard
08:48
Rotation of the femoral component in total knee arthroplasty: How do soft tissues corelate to bony landmarks? (abstract)
PRESENTER: Asim Khan
09:00
Intra-observer variations of femoral bony landmarks using three different methods for the design of custom knee implant (abstract)
PRESENTER: Arnaud Clavé
09:12
Novel Methodology For Measuring The Medial Proximal Tibial Angle In Total Knee Arthroplasty (abstract)
PRESENTER: Ishaan Jagota
09:24
Automated analysis of femoral over-/underhang and bone coverage of OTS TKA implants (abstract)
PRESENTER: Sonja Grothues
09:40-10:30 Session 17: Shoulder, Spine, & Trauma Session
09:40
Three-dimensional analysis of scapula in a standing position: evaluation of the accuracy (abstract)
PRESENTER: Hoel Letissier
09:52
3D computer assisted C arm free navigation application in minimally invasive spine surgery: A case series and technical note (abstract)
PRESENTER: Chien Chun Chang
10:04
Automated measurement of bone mineral density of the lumbar from quantitative CT images (abstract)
PRESENTER: Keisuke Uemura
10:16
NOFUSS: Navigated Orthopaedic Fixation using Ultrasound System (abstract)
10:28
Robotic versus conventional primary total knee arthroplasty: clinical and radiological long-term results with a minimum follow-up of fifteen years (abstract)
PRESENTER: Hong Yeol Yang
10:30-11:00Coffee Break
11:00-12:30 Session 19: Symposium - Clinical Lessons with CAOS

This symposium is composed of a series of invited presentations by a range of surgeons that use CAOS in their everyday practice including in non-research centers. These presentations will discuss lessons learned. 

11:00
Mako vs CT-based Navigation THA
11:08
Navigated THA: 11 Years Experience
11:16
Present and Possibilities of Computer Assisted Trauma Surgery
11:24
Group Discussion
11:40
Functional Alignment vs Mechanical Alignment in Robotic Assisted TKA
11:48
Digital Navigation on the Traumatic Knee Arthroplasty
11:56
Kinematically Aligned TKA: Can Robotics Improve Outcomes
12:04
Group Discussion
12:30-13:30 Session 20: Lunch Symposium - Perspectives on CAOS from Asia
12:30
Korean Perspective of Computer Assisted Technology in 2023
13:00
Orthopaedic Surgical Robots in China
13:30-15:20 Session 21: Image Processing Session
13:30
AI-Assisted Muscle Evaluation
13:42
An Automatic Surgical Decision Support Method For Radial Metaphyseal Fractures In X-Ray (abstract)
PRESENTER: Leo Joskowicz
13:54
Deep Learning Accurately Estimates Angular Displacements Between 2D Ultrasound Frames When Scanning Infant Hips (abstract)
14:06
3D Reconstruction of Femur using Ultrasound - Hand Guided Evaluation and Autonomous Robotic Approach (abstract)
PRESENTER: Lovis Phlippen
14:18
SimPS-Net: Simultaneous Pose & Segmentation Network of Surgical Tools (abstract)
PRESENTER: Spyridon Souipas
14:30
Artificial intelligence assisted assessment of pre- and post-arthroplasty lower limb alignment on long-leg and knee close-up X-rays (abstract)
PRESENTER: Théo Estienne
14:42
nnU-Net for the Automatic Knee Segmentation from CT Images: A Comparative Study with a Conventional U-Net Model (abstract)
14:54
Automated Grading of Hip Osteoarthritis from Computed Tomography Image-based Digitally Reconstructed Radiographs for Disease Progression Analysis (abstract)
PRESENTER: Masachika Masuda
15:06
Automatic Glenoid Bone Loss Detection And Quantification In Shoulder CT Scans (abstract)
PRESENTER: Leo Joskowicz
15:20-15:50Coffee Break
15:50-16:20 Session 22: Poster Teaser
15:50
Poster 14 - Correlation between score values and morphofunctional parameters in THA (abstract)
PRESENTER: Luisa Berger
15:53
Poster 15 - Tension of Gap Resection in Robotic assisted Total Knee Arthroplasty (abstract)
15:56
Poster 17 - Reduction Of The Fibula With Syndesmostic Instability (Ao/Ota Classification 44c Type) Using Intraoperative 3d Image (abstract)
PRESENTER: Naofumi Shiota
15:59
Poster 8 - Functional Alignment (FA) Provide Better Gap Balance & Less Bony Resection compared to modified Kinematic Alignment (mKA) in Primary Total Knee Arthroplasty (abstract)
PRESENTER: Bo-Ram Na
16:02
Poster 9 - Comparison of Acetabular Cup Positioning between Robotic Arm-Assisted Versus Computed Tomography-Based Navigation Total Hip Arthroplasty (abstract)
PRESENTER: Akira Shimizu
16:05
Poster 22 - Why Computer-assisted Orthopedic Surgery (CAOS)? The Biological Impacts of Intramedullary Reaming During Conventional Total Knee Arthroplasty (TKA) (abstract)
PRESENTER: Shu-Jui Kuo
16:08
Poster 21 - Femoral implant size optimization for total knee replacement (abstract)
PRESENTER: Sonja Grothues
16:11
Poster 20 - Intraoperative Computer Assisted Tumor Surgery (CATS) For Oncological Resections In Musculoskeletal Oncology – Early Results From A Tertiary Cancer Centre (abstract)
PRESENTER: Ashish Gulia
16:14
Poster 19 - The Accuracy Of Dr LCT; Newly Developed Multi-Axial Robot Arm System (abstract)
PRESENTER: Soo-Hyun Lee
Saturday, June 10th

View this program: with abstractssession overviewtalk overview

08:00-09:00 Session 25: Robotics & Augmented Reality Session
08:00
Can robotic implant placement improve over computer navigation: A comparison of conventional, navigated and robotic techniques for total hip replacements (abstract)
PRESENTER: Kamal Deep
08:12
Development of a noninvasive augmented reality-based navigation system for total hip arthroplasty in the supine position (abstract)
PRESENTER: Ryohei Takada
08:24
High Accuracy of a new augmented reality assisted technique for Total Knee Arthroplasty: an in vivo study. (abstract)
09:00-10:00 Session 26: Hip Session Part 1
09:00
Accurate implant placement in THA using Three-dimensional printed custom-made acetabular component for massive defects. (abstract)
PRESENTER: Atsushi Taninaka
09:12
Three Dimensional Planning Versus Two Dimensional Templating In Total Hip Replacement Surgery (abstract)
PRESENTER: Mahmoud Rahuna
09:24
Determination of preoperative risk factors for iliopsoas tendonitis (abstract)
09:36
Postoperative changes in spinopelvic sagittal alignment and motion in total hip arthroplasty (abstract)
PRESENTER: Kohei Kono
09:48
Are patient reported outcome measures sensitive enough: Making the case for functional biomechanical assessment of navigated total hip arthroplasty patients. (abstract)
PRESENTER: Hollie Leonard
10:00-10:30Coffee Break
10:30-11:30 Session 27: Hip Session Part 2
10:30
Can Navigation help in guiding the Implant design (abstract)
10:42
Is the mechanism of iliopsoas tendonitis the same in total hip arthroplasty as hip resurfacing arthroplasty? A case-controlled investigation using a validated simulation (abstract)
10:54
The truth of CT-based navigation assisted curved periacetabular osteotomy (abstract)
11:06
Over 50% of patients at risk of impingement after THA surgery are not captured with neutral bony alignment (abstract)