Clinical Research

Our professional team of engineers and researchers continuously challenge the status quo of the orthopaedics industry through publishing a high volume of peer-reviewed research. Every day, we strive to gain understanding of the challenges that our partner surgeons, patients, and medical colleagues encounter every day.

2022

  1. Leg length discrepancy assessment in total hip arthroplasty: is a pelvic radiograph sufficient? Bone & Joint Open (2023), Max Hardwick-Morris, Estelle Wigmore, Joshua Twiggs, Brad Miles, Christopher W. Jones, Piers J. Yates
  2. Correctability of the knee joint observed under a stressed state, Journal of the Knee (2022) Jialong Li, David Liu, Jonathan Bare, David Dickison, Willy Theodore, Brad Miles, Qing Li, Joshua Twiggs
  3. Functional Femoral Anteversion: Axial Rotation of the Femur and its Implications for Stem Version Targets in Total Hip Arthroplast, Arthroplasty Today Vol. 18, 16-23 (2022), Max Hardwick-Morris, Joshua Twiggs, Kunaal Kacker, Brad Miles, Jitendra Balakumar
  4. Patient reported impairment following TKA is reduced when a computationally simulated predicted ideal alignment is achieved, Knee Surgery, Sports Traumatology, Arthroscopy (2022), Joshua Twiggs, David Liu, Justin Roe, Brett Fritsch, David Parker, Andrew Shimmin, Jonathan Bare, Stephen McMahon, Michael Solomon, Len Walter, David Dickison, Brad Miles
  5. Pre‑ and postoperative physiotherapy using a digital application decreases length of stay without reducing patient outcomes following total knee arthroplasty, Arthroplasty (2022), Max Hardwick-Morris, Simon Carlton, Joshua Twiggs, Brad Miles, David Liu

 

2021 

  1. Can TKA Outcomes be Predicted with Computational Simulation? Generation of a Patient Specific Planning Tool , Journal of the Knee (2021 – in press), Joshua Twiggs, David Liu, Justin Roe, Brett Fritsch, David Parker, Andrew Shimmin, Jonathan Bare, Stephen McMahon, Michael Solomon, Len Walter, David Dickison, Brad Miles 
  2. Wide variation in tibial slopes and trochlear angles in the arthritic knee: a CT evaluation of 4116 pre-operative knees, Knee Surgery, Sports Traumatology, Arthroscopy (2021 – in press) , Hazratwala, K., O’Callaghan, W., Dhariwal, S., Wilkinson, M. 

 

2020 

  1. Correlation of tibial component size and rotation with outcomes after total knee arthroplasty. Arch Orthop Trauma Surg 140, 1819–1824 (2020) Klasan, A., Twiggs, J.G., Fritsch, B.A. et al.
  2. The Association Between Anxiety, Depression, and Locus of Control with Patient Outcomes Following Total Knee Arthroplasty. The Journal of Arthroplasty 35 (2020) 720-724 Joshua Xu, BSc (Adv), Joshua Twiggs, PhD, David Parker, MBBS, Jonathan Negus, PhD, MBBS

 

2019

  1. Surgical Alteration of the Coronal and Axial Knee Alignment during TKA correlates with Reduced Patient Reported Outcomes. Recent Advances in Arthroplasty 2019 3(1): 84-93 Joshua G Twiggs, Edgar A Wakelin, Jose Salazar, Justin P. Roe, Michael Solomon, David A Parker, Brett Fritsch, David Liu, Brad P Miles, Andrew Ruys
  2. A Technique for Accurate Kinematic Validation of a Subject Specific TKA Model. Recent Advances in Arthroplasty 2019 3(1): 94-103 Willy Theodore, Joseph Little, Edgar A Wakelin, Justin P. Roe, Darryl D’lima, Mark Taylor, Brad Miles
  3. Comparison between navigated reported position and postoperative computer tomography to evaluate accuracy in a robotic navigation system in total knee arthroplasty. The Knee (2019) Francisco Figueroa, Edgar Wakelin, Joshua Twiggs, Brett A. Fritsch
  4. Clinical and Statistical Validation of a Probabilistic Prediction Tool of Total Knee Arthroplasty Outcome. The Journal of Arthroplasty xxx (2019) 1-8 Joshua Twiggs, Edgar Wakelin, Brett Fritsch, David Liu, Michael Soloman, David Parker, Antonio Klasan, Brad Miles
  5. Kinematic Alignment is bone and soft tissue preserving compared to mechanical alignment in Total Knee Arthroplasty. The Knee 26 (2019) 466-476 Vincent V.G. An, Joshua Twiggs, Murilo Leie, Brett A. Fritsch

 

2018

  1. Measurement of physical activity in the pre-and early post-operative period after total knee arthroplasty for Osteoarthritis using a Fitbit Flex device. Medical Engineering and Physics, 51 (2018) 31-40 Joshua Twiggs, Lucy Salmon, Elizabeth Kolos, Emily Bogue, Brad Miles, Justin Roe
  2. Patient Variation Limits Use of Fixed References for Femoral Rotation Component Alignment in Total Knee Arthroplasty. The Journal of Arthroplasty 33(2018) 67-74 Joshua Twiggs, David Dickison, Elizabeth Kolos, Caitlin Wilcox, Justin Roe, Brett Fritsch, Stephen McMahon, Brad Miles, Andrew Ruys
  3. Patient-Specific Simulated Dynamics After Total Knee Arthroplasty Correlate with Patient-Reported Outcomes. The Journal of Arthroplasty, 33 (2018) 2843-2850 Joshua Twiggs, Edgar Wakelin, Justin Roe, David Dickison, Brett Fritsch, Brad Miles, Andrew Ruys
  4. Accurate Determination of Post-operative 3D Component Positioning in Total Knee Arthroplasty: The AURORA Protocol. Journal of Orthopaedic Surgery and Research (2018) 13:275 Edgar Wakelin, Linda Tran, Joshua Twiggs, Willy Theodore, Justin Roe, Michael Soloman, Brett Fritsch, Brad Miles

 

2017

  1. Variability in static alignment and kinematics for kinematically aligned TKA. The Knee 24 (2017) 733-744 Willy Theodore, Joshua Twiggs, Elizabeth Kolos, Justin Roe, Brett Fritsch, David Dickison, David Liu, Lucy Salmon, Brad Miles, Stephen Howell

Conference Presentations

Orthopaedic Research Society Annual Meeting, February 2022

  1. Accurate Recreation of Native Tibial Medial Centre of Rotation Following TKA Surgery Leads to Improved Patient Outcomes Ishaan Jagota; Jonathan Baré; Andrew Shimmin; Joshua Twiggs; Brad Miles
  2. Internal Femoral Rotation & Anterior Pelvic Tilt in The Flexed Seated Position: Co-incidence And Functional Consequences Max Hardwick-Morris; Kunaal Kacker; Joshua Twiggs; Brad Miles
  3. Population Level Validation of a Novel Joint Distraction Radiology Protocol in TKA (POSTER) David Liu; Ishaan Jagota; Joshua Twiggs; Brad Miles
  4. Comparison Of a Novel Joint Distraction Radiology Protocol in Total Knee Arthroplasty Planning with Navigated Joint Gaps (POSTER) David Liu; Ishaan Jagota; Joshua Twiggs; Brad Miles
  5. Leg Length Discrepancy Assessment in Total Hip Arthroplasty: Time to Get It Right (POSTER) Piers Yates; Christopher W. Jones; Max Hardwick-Morris; Estelle Liu; Joshua Twiggs; Brad Miles
  6. Anatomical Drivers of Correctability of the Osteoarthritic Knee Joint Under Varus and Valgus Stress (POSTER) David Liu; Jialong Li; Joshua Twiggs; Brad Miles
  7. Validation of a Novel Computational Iliopsoas Impingement Detection Model for Surgical Planning (POSTER) Bill Walter; Sam Khadra; Joshua Twiggs; Max Hardwick-Morris
  8. Functional Femoral Anteversion: Axial Rotation of The Femur and its Implications for Stem Version Targets in Total Hip Arthroplasty (POSTER) Kunaal Kacker; Max Hardwick-Morris; Joshua Twiggs; Brad Miles

Computer Assisted Orthopaedic Surgery, June 2022

  1. Population Level Validation of a Novel Joint Distraction Radiology Protocol in Total Knee Arthroplasty Planning Ishaan Jagota; David Liu; Joshua Twiggs; Brad Miles
  2. Comparison of a Novel Joint Distraction Radiology Protocol in Total Knee Arthroplasty Planning with Navigated Joint Gaps Ishaan Jagota; David Liu; Joshua Twiggs; Brad Miles
  3. Leg Length Discrepancy Assessment in Total Hip Arthroplasty: Time to Get It Right Joshua Twiggs; Christopher W. Jones; Piers Yates; Max Hardwick-Morris; Brad Miles
  4. Functional Femoral Anteversion: Axial Rotation of the Femur and Its Implications for Stem Version Targets in Total Hip Arthroplasty Max Hardwick-Morris; Joshua Twiggs; Kunaal Kacker; Jitendra Balakumar; Brad Miles
  5. Validation of a Novel Computational Iliopsoas Impingement Detection Model for Surgical Planning Max Hardwick-Morris; Joshua Twiggs; Mark Taylor; Rami Al-Dirini; Brad Miles; Jitendra Balakumar; Bill Walter
  6. Improvement of TKA Outcomes with Preoperative Simulation: Validation of a Patient Specific Planning Tool – Awarded Best Podium Presentation Joshua Twiggs; David Parker; Brett Fritsch; Justin Roe; David Liu; Brad Miles
  7. Internal Femoral Rotation & Anterior Pelvic Tilt in the Flexed Seated Position: Co-Incidence and Functional Consequences (POSTER) – Awarded Best Poster Presentation Estelle Liu; Max Hardwick-Morris; Joshua Twiggs; Kunaal Kacker; Jitendra Balakumar; Brad Miles
  8. Validation of a Patient Outcome Prediction Tool Relative to Surgeon Predictions of Patient Outcome in Total Knee Arthroplasty (POSTER) Justin Roe; David Parker; Brett Fritsch; David Liu; Ishaan Jagota; Matthew Baker; Joshua Twiggs; Brad Miles

European Federation of National Associations of Orthopaedics and Traumatology Annual Congress Australian Orthopaedic Association ASM, June 2022

  1. Is Trochlear Recreation Related to Patient Outcomes Following Total Knee Arthroplasty Jobe Shatrov; Ishaan Jagota; Joshua Twiggs; Brett Fritsch; William Walter; David Parker

International Society for Technology in Arthroplasty Annual Congress, September 2022

  1. Leg Length Discrepancy Assessment in Total Hip Arthroplasty: Time to Get It Right Max Hardwick-Morris; Joshua Twiggs; Brad Miles; Christopher Jones; Piers Yates
  2. Validation of a Novel Computational Iliopsoas Impingement Detection Simulation for Surgical Planning Brad Miles; Max Hardwick-Morris; Joshua Twiggs; Yuan Chai; Jitendra Balakumar; Mark Taylor; Rami Al-Dirini; William Walter
  3. Novel Methodology for Measuring the Medial Proximal Tibial Angle in Total Knee Arthroplasties William Walter; Ishaan Jagota; Matthew Lim; Joshua Twiggs; Brad Miles; Max Hardwick-Morris
  4. Population Level Validation of a Novel Joint Distraction Radiology Protocol in Total Knee Arthroplasty Planning Joshua Twiggs; Ishaan Jagota; David Liu; Brad Miles; Max Hardwick-Morris
  5. Over 50% of Patients at Risk of Impingement after THA Surgery are Not Captured with Neutral Bony Alignment Brad Miles; Joshua Twiggs; Max Hardwick-Morris; Estelle Liu
  6. Prediction of Postoperative Impairment with Simulation: Validation of Patient Specific Planning Tool Joshua Twiggs; Brad Miles; Andrew Shimmin; Justin Roe; David Liu; David Parker; Brett Fritsch
  7. Functional Femoral Anteversion: Axial Rotation of the Femur and Its Implications for Stem Version Targets in Total Hip Arthroplasty Max Hardwick-Morris; Joshua Twiggs; Kunaal Kacker; Brad Miles; Jitendra Balakumar
  8. Validation of a Patient Outcome Prediction Tool Relative to Surgeon Predictions of Patient Outcome in Total Knee Arthroplasty (POSTER) Joshua Twiggs; Justin Roe; David Parker; Brett Fritsch; David Liu; Ishaan Jagota; Brad Miles
  9. Validation of a Novel Computational Iliopsoas Impingement Detection Simulation for Surgical Planning (POSTER) Brad Miles; Max Hardwick-Morris; Joshua Twiggs; Yuan Chai; Jitendra Balakumar; Mark Taylor; Rami Al-Dirini; William Walter

EFORT Congress Lisbon, 2022

  1. Rotation of the Femur in Total Hip Arthroplasty: Functional Femoral Version an Underestimated Problem? Christoph Hartog; Kunaal Kacker; Max Hardwick-Morris; Joshua Twiggs; Jitendra Balakumar

Australian Knee & Sports Surgery / New Zealand Knee & Sports Surgery Combined Society Meeting, October 2022

  1. Novel Patellofemoral Ligament Modelling to Detect Anterior Knee Pain After Total Knee Arthroplasty David Parker; Ishaan Jagota; Andrew Shimmin; Brett Fritsch; Joshua Twiggs; Brad Miles

Australian Orthopaedic Association / New Zealand Orthopaedic Association Combined Annual Scientific Meeting, October 2022

  1. Novel Methodology for Measuring the Medial Proximal Tibial Angle in Total Knee Arthroplasties Ishaan Jagota; William Walter; Evan Jenkins; David Lin; Matthew Lim; Joshua Twiggs; Brad Miles
  1. Novel Patellofemoral Ligament Modelling to Detect Anterior Knee Pain After Total Knee Arthroplasty Ishaan Jagota; Andrew Shimmin; Brett Fritsch; David Parker; Joshua Twiggs; Brad Miles
  1. Functional References for Tibial Axial Rotation in Total Knee Arthroplasties Ishaan Jagota; Andrew Shimmin; David Liu; Brett Fritsch; David Parker; Joshua Twiggs; Brad Miles
  1. An Analysis of Bilateral Knee Symmetry Using CT Scans – Applications to Revision Total Knee Replacements Jonathan Negus; Lachlan Mactier; Joshua Twiggs; Brad Miles
  1. Application of the Simple Hip-Spine Classification to an Australian sample to determine local patient-specific cup orientation requirements Max Hardwick-Morris; Evan Jones; Warwick Bruce; William Walter; Joshua Twiggs; Brad Miles
  1. Are the causes of iliopsoas-related groin pain in total hip arthroplasty and hip resurfacing arthroplasty similar? A case-controlled investigation using a validated simulation Max Hardwick-Morris; Rami Al-Dirini; Mark Taylor; William Walter; Joshua Twiggs; Brad Miles
  1. Determination of preoperative risk factors for iliopsoas tendonitis after total hip arthroplasty Max Hardwick-Morris; Rami Al-Dirini; Mark Taylor; Jitendra Balakumar; William Walter; Joshua Twiggs; Brad Miles
  1. Over 50% of patients at risk of impingement after THA surgery are not captured with neutral bony alignment Max Hardwick-Morris; Evan Jones; Warwick Bruce; William Walter; Joshua Twiggs; Brad Miles
  1. Does the iliopsoas act as an anterior stabiliser? A case series investigating a newly proposed source of iliopsoas tendonitis after total hip arthroplasty (POSTER) – Awarded Best Poster Presentation Max Hardwick-Morris; Kunaal Kacker; Lachlan Milne; Jitendra Balakumar

Australian Orthopaedic Association COE, April 2021

  1. Pre-operative Planning to Avoid Impingement in THR? Warwick Bruce, Max Hardwick Morris, Joshua Twiggs
  2. AI, Data Ownership & the Blockchain Brett Fritsch, Max Hardwick Morris
  3. Precision Hip and Knee Replacement – Evaluation, Planning, Delivery Jonathan Bare, Ishaan Jagota, Joshua Twiggs

Asia Pacific Arthroplasty Society, August 2021

  1. Psoas Irritation with THA – Diagnosis and Management Bill Walter, Max Hardwick Morris

Australian Orthopaedic Association ASM, November 2021

  1. Validation of a novel computational iliopsoas impingement detection model for surgical planning Bill Walter, Sam Khadra, Yuan Chai, Wout Veltman, Max Hardwick-Morris
  2. Leg Length Discrepancy Assessment in Total Hip Arthroplasty: Time to Get it Right Uriel Giwnewer, Piers Yates, Christopher Jones, Joshua Twiggs, Dean Pinchen, Brad Miles
  3. Functional Femoral Anteversion: Axial Rotation of the Femur and its Implications for Stem Version Targets in THA Kunaal Kacker, Max Hardwick-Morris, Joshua Twiggs, Jitendra Balakumar
  4. Internal femoral rotation and anterior pelvic tilt from supine-to-flexed seated and the risk of dislocation Kaushik Hazratwala, Max Hardwick-Morris, Evan Jones, Jitendra Balakumar, Warwick Bruce
  5. Anatomical drivers of correctability of the osteoarthritic knee joint under varus and valgus stress David Liu, Andy Li, Joshua Twiggs, Ishaan Jagota
  6. Improvement of TKA Outcomes with Preoperative Simulation: Validation of a Patient Specific Planning Tool Andrew Shimmin, Justin Roe, David Parker, Brett Fritsch, David Liu, Joshua Twiggs, Brad Miles
  7. Validation of a Patient Outcome Prediction Tool Relative to Surgeon Predictions of Patient Outcome in Total Knee Replacement Justin Roe, David Parker, David Liu, Brett Fritsch, Joshua Twiggs
  8. Remote pre- and rehabilitation as an in-patient rehabilitation alternative in patients undergoing total knee replacement David Liu, Simon Carlton, Ishaan Jagota, Max Hardwick-Morris, Joshua Twiggs, Brad Miles
  9. Population Level Validation of a Novel Joint Distraction Radiology Protocol in TKA Planning David Liu, Ishaan Jagota, Joshua Twiggs
  10. Failure to Recreate the Native Tibial Medial Centre of Rotation Following TKA Surgery leads to Reduced Patient Outcomes Jonathan Bare, Andrew Shimmin, Joshua Twiggs
  11. Comparison of a Novel Joint Distraction Radiology Protocol in TKA Planning with Navigated Joint Gaps David Liu, Ishaan Jagota, Joshua Twiggs, Brad Miles

Great Debate, London, February 2020

  1. Can we better predict outcome in TKR? Justin Roe, Brad Miles, Joshua Twiggs
  2. Post-operative outpatient rehab after TKR using remote monitoring- the affordable future in action Justin Roe, Brad Miles, Joshua Twiggs
  3. Managing patient expectation with predictive analytics Justin Roe, Brad Miles, Joshua Twiggs
  4. Simulation of TKA outcome- a pathway to patient specific surgical optimisation Andrew Shimmin, Brad Miles, Joshua Twiggs
  5. Stability in different TKR designs Bill Walter, Brad Miles, Joshua Twiggs
  6. Using data to drive better surgeon decision making Brad Miles, Joshua Twiggs

Orthopaedic Research Society, Arizona, February 2020

  1. DKS Bilateral Validation Joshua Twiggs
  2. Medial Well Restoration Outcomes Joshua Twiggs
  3. Anatomical Tibial Slope Recreation & Slope Recreation Outcome - Poster Joshua Twiggs

Zimmer Biomet, February 2020

  1. DKS/Patient Specific Alignment David Liu, Brad Miles, Joshua Twiggs
  2. Rehab/RCT Study David Liu, Brad Miles, Joshua Twiggs
  3. Future Orthopaedics David Liu, Brad Miles, Joshua Twiggs

Australian Orthopaedic Association, Canberra, October 2019

  1. A patient-specific tool to predict target range of motion following total knee arthroplasty, Sarah Brereton, Brad Miles, Joshua Twiggs
  2. Tibial Slope following Total Knee Arthroplasty is Linked to Pain when Flexing the Knee, Justin Roe, Brad Miles, Joshua Twiggs
  3. Functional Knee Laxity Measurements are More Indicative of TKA Outcomes than Passive Intraoperative Assessments, David Liu, Brad Miles, Joshua Twiggs
  4. Prediction of Functional Knee Laxity in Pre-operative Total Knee Arthroplasty Patients using Morphological Measures, David Dickison, Brad Miles, Joshua Twiggs
  5. Coronal Anatomical Abnormalities have a Greater Impact on Patient Outcomes than Axial Abnormalities following TKA, Brett Fritsch, Brad Miles, Joshua Twiggs
  6. Patello-femoral Recreation and its Relationship to Outcome, Steve McMahon, Vikram Kandhari, Brad Miles, Joshua Twiggs
  7. Variability in Kinematic Results of a Medial Stabilised TKA Simulation, Andrew Shimmin, Brad Miles, Joshua Twiggs
  8. Intra-Operative Verification of a Simulated TKA Computational Model for Pre-Operative Planning, Andrew Shimmin, Brad Miles, Joshua Twiggs
  9. Detecting Risk of Progression to End Stage Knee Osteoarthritis Based on Preliminary Consultations for Knee Pain, Michael Soloman, Leon Van Der Watt, Brad Miles, Joshua Twiggs
  10. Recreation and Modification of Tibial Slope and its Relationship Flexion/Extension Laxity, Brett Fritsch, Raymond Kim, Brad Miles, Joshua Twiggs

International Society for Technology in Arthroplasty, Toronto, October 2019

  1. Femoral Medial Trochlear Overstuffing Increases Postoperative Impairment While Bending in TKA, Joshua Twiggs, Stephen McMahon, Brad Miles
  2. Intra-Operative and Anatomic Verification of a TKA Computational Model for Pre-Operative Surgical Planning, Brad Miles, Joshua Twiggs, Brett Fritsch, Edgar Wakelin, Justin Roe
  3. Failure to Recreate the Native Tibial Medial Centre of Rotation Following TKA Surgery Leads to Reduced Patient Outcomes, Jonathan Baré, Andrew Shimmin, Joshua Twiggs, Brad Miles, Rachel Choi
  4. 3D Registration of Patella Button Positioning and Relationships to Patient Reported Outcome, Brad Miles, Joshua Twiggs, Stephen McMahon
  5. Validation of a Computational Simulation Outcome Prediction Tool in Bilateral Total Knee Arthroplasty Patients, Brad Miles, Joshua Twiggs, Rachel Choi, Andrew Shimmin, Brett Fritsch, Justin Roe, David Parker

International Society for Computer Assisted Orthopaedic Surgery, New York, June 2019

  1. Intra-Operative and Anatomic Verification of a TKA Computational Model for Pre-Operative Surgical Planning, Brad Miles, Joshua Twiggs, Brett Fritsch, Edgar Wakelin, Justin Roe
  2. Femoral Medial Trochlear Overstuffing Increases Postoperative Impairment While Bending in TKA, Joshua Twiggs, Stephen McMahon, Brad Miles, Edgar Wakelin
  3. Prediction of Functional Knee Laxity in Pre-operative Total Knee Arthroplasty Patients using Morphological Measures, Brad Miles, Joshua Twiggs, Willy Theodore, Cerys Edwards, Ella Moore, David Liu
  4. Conservative Kinematic Alignment Strategies Report Higher Incidence of Mid-Term Pain Following TKA: A Retrospective Study, Brad Miles, Joshua Twiggs, Edgar Wakelin, Brett Fritsch, Michael Soloman

International Society of Arthroscopy, Knee Surgery and Orthopaedic Sports Medicine, Mexico, May 2019

  1. Increased tibial tray coverage without overhang improves patient reported outcomes, Michael Solomon, Jonathan Baré, Steve McMahon, Andrew Shimmin, David Dickison, Edgar Wakelin, Joshua Twiggs, Brad Miles
  2. Conservative Approaches to Kinematic Alignment and Patient Reported Outcomes, David Parker, Michael Solomon, Edgar Wakelin, Joshua Twiggs, Brad Miles
  3. Quantifying Compartmental & Sub-compartmental Cartilage Variation in Osteoarthritic Knees, Brett Fritsch, Ella Moore, Estelle Liu, Joshua Twiggs, Brad Miles, Edgar Wakelin
  4. A Comparison of Kinematic Alignment and Mechanical Alignment with Regards to Bony Resection and Soft Tissue Release in Total Knee Replacement, Brett Fritsch, Joshua Twiggs, Vincent An, Brad Miles

Japanese Orthopaedic Association, Yokohama, May 2019

  1. Femoral Medial Trochlear Overstuffing Increases Postoperative Impairment While Bending in TKA, Joshua Twiggs, Stephen McMahon, Brad Miles, Edgar Wakelin

European Knee Society, Spain, May 2019

  1. Implant geometry and alignment driven variability in simulated TKA kinematics, Bill Walter, Joshua Twiggs, Edgar Wakelin, Andrew Shimmin, Jonathan Baré, Brad Miles

Orthopaedic Research Society, Austin, February 2019

  1. Femoral Medial Trochlear Overstuffing Increases Postoperative Impairment While Bending in TKA, Joshua Twiggs, Stephen McMahon, Brad Miles
  2. Predicting Semi-Functional Coronal Knee Laxity in Preoperative TKA Patients Using Morphological Measurements, Brad Miles, Cerys Edwards, Ella M. Moore, Willy Theodore, David Liu, Joshua Twiggs, Edgar Wakelin

Sydney Musculoskeletal Conference, Sydney, November 2018

  1. The Effect of Osteoarthritis on Ligament Laxity: The Development of a Predictive Model, Cerys Edwards, David Liu, Ella Moore, Brad Miles, Edgar Wakelin
  2. A novel acoustic knee emission device for TKA pre- and post-operative assessment, James Spinks, David Liu, Brad Miles, Edgar Wakelin
  3. Cartilage wear profile can be predicted from patient specific factors, Estelle Liu, Ella Moore, Brett Fritsch, Brad Miles, Edgar Wakelin

Australian Orthopaedic Association Annual Scientific Meeting, Perth, October 2018

  1. Digital Prehabilitation, David Liu, Justin Roe, Simon Carlton, Micaela Anderson, Joshua Twiggs, Edgar Wakelin, Brad Miles
  2. Clinical Validation of the Patient Expectation Management Tool, David Liu, Michael Solomon, Jonathan Baré, Steve McMahon, David Dickison, Edgar Wakelin, Joshua Twiggs, Brad Miles
  3. Tibial Tray Positioning, Coverage and Relationship to Short Term Outcome following TKR, Michael Solomon, Jonathan Baré, Steve McMahon, Andrew Shimmin, David Dickison, Edgar Wakelin, Joshua Twiggs, Brad Miles
  4. Accuracy of a Patient Specific Patella Reaming Guide, Jonathan Bare, Andrew Shimmin, Leina Suzuki, Justin Roe, Steve McMahon, Michael Solomon, Edgar Wakelin, Joshua Twiggs, Brad Miles
  5. A PSI guide for UKR to TKR Revision, Andrew Shimmin, Jonathan Baré, Steve McMahon, Ella Moore, Edwina Homarwijaya, Bede O’Connor, Joshua Twiggs, Edgar Wakelin, Brad Miles
  6. Alignment strategies – Where have we come from and where are we going?, David Parker, Edgar Wakelin, Joshua Twiggs, Brad Miles
  7. Conservative Approaches to Kinematic Alignment and their Impact on Patient Reported Outcomes, Michael Solomon, Jonathan Baré, Steve McMahon, Andrew Shimmin, David Dickison, Edgar Wakelin, Joshua Twiggs, Brad Miles
  8. Ligament Offset Distances, Relationship to Outcome and Alignment Approach, Brad Miles, David Parker, Michael Solomon, David Dickison, Andrew Shimmin, Jonathan Bare, Stephen McMahon, Joshua Twiggs, Edgar Wakelin

Australian Knee Society, Broome, October 2018

  1. Alignment strategies and their effect on outcomes and simulated dynamics, David Parker, Edgar Wakelin, Joshua Twiggs, Brad Miles
  2. The Impact of Surgical Technique on Ligament Laxity Profiles, Brett Fritsch, Ella Moore, Edgar Wakelin, Joshua Twiggs, Brad Miles

International Society for Technology in Arthroplasty, London, October 2018

  1. Conservative Approaches to Kinematic Alignment and Patient Reported Outcomes, Joshua Twiggs, Michael Solomon, Andrew Shimmin, Brad Miles, Edgar Wakelin
  2. Implant geometry and alignment driven variability in Post-TKA kinematics, Joshua Twiggs, Edgar Wakelin, Jonathan Baré, Brad Miles, William Walter
  3. Pre-operative Anatomy and its Correlation to Intra-operative Knee Laxity and Patient Outcome in Total Knee Arthroplasty, Edgar Wakelin, Joshua Twiggs, Brad Miles, Andrew Shimmin, Brett Fritsch, David Liu
  4. Accuracy of a Patient Specific Patella Guide, Relationships Between Patella Button Placement and Patient Reported Outcome, Edgar Wakelin, Joshua Twiggs, Justin Roe, Jonathan Bare, Andrew Shimmin, Leina Suzuki, Brad Miles
  5. Provision of Prehabilitation and ROM Prior to Total Knee Arthroplasty, Joshua Twiggs, Brad Miles, David Liu, Simon Carlton, Edgar Wakelin
  6. A PSI Guide for UKR-to-TKR Revision, Edgar Wakelin, Joshua Twiggs, Brad Miles, Andrew Shimmin, Ella Moore
  7. Pre-Operative Knee Laxity Measurements Are More Indicative of TKA Outcomes Than Intraoperative Assessments, Edgar Wakelin, Joshua Twiggs, Ella Moore, Brad Miles, Andrew Shimmin, David Liu

European Federation of National Associations of Orthopaedics and Traumatology, Barcelona, June 2018

  1. Validity of a Shared Decision-Making Tool in Pre Total Knee Arthroplasty Consultation, David Dickison, Edgar Wakelin, David Parker, Joshua Twiggs, Brad Miles

Asia-Pacific Knee Arthroplasty and Sports Medicine Society, Sydney, June 2018

  1. The Case for Kinematic Alignment, Michael Solomon, Edgar Wakelin, Joshua Twiggs, Brad Miles
  2. Incidence of Anatomical Deformity Across a Population of Prospective TKR Patients, Brett Fritsch, Jonathan Bare, Andrew Shimmin, Joshua Twiggs, Brad Miles
  3. Quantifying Cartilage Thickness Profiles through ex-vivo Three-dimensional Laser Scanning, Ella Moore, Edgar Wakelin, Joshua Twiggs, Brett Fritsch, Brad Miles

Forever Active Forum, Melbourne, June 2018

  1. The Future of Arthroplasty, Justin Roe
  2. Future of TKR and problems over next decade, Brett Fritsch
  3. Patient Specific Guides, Jonathan Bare
  4. Patient Specific Alignment, David Parker
  5. Biomechanical simulation of different designs of TKA, Jonathan Bare
  6. Wrong Patient Wrong Time, Improving outcomes through patient selection, Joshua Twiggs, Edgar Wakelin, Brad Miles
  7. One size does not fit all, Edgar Wakelin, Joshua Twiggs, Brad Miles
  8. The Virtual Patient, data driven alignment decisions, Joshua Twiggs, Edgar Wakelin, Brad Miles
  9. Targeted Patient Pathways, Edgar Wakelin, Joshua Twiggs, Brad Miles

Arthroplasty Society of Australia, Melbourne, May 2018

  1. Effect of Component Geometry and Alignment on Kinematic Outcome of TKA, Jonathan Baré, Willy Theodore, Edgar Wakelin, Joshua Twiggs, Brad Miles

Orthopaedic Research Society, New Orleans, March 2018

  1. Patient & Implant Driven Variability in Simulated Dynamic Outcomes, Joshua Twiggs, Edgar Wakelin, Andy Li, Brad Miles
  2. Patient & Implant Driven Variability in Post-TKR Dynamic Outcomes, Joshua Twiggs, Edgar Wakelin, Brad Miles

Australian Orthopaedic Association, Adelaide, October 2017

  1. Quantification of the Extent of Anatomical Variation in Patients Prior to TKA Surgery, Jonathan Bare, Joshua Twiggs, Brad Miles
  2. Surgical alteration of the Tibial Joint Line during TKA correlates with poor patient reported symptomatic outcome, Richard Boyle, Joshua Twiggs, Brad Miles
  3. Novel 3D Post-Operative Analysis Using CT Suffers Less Measurement Error than Traditional Methods, David Dickison, Caitlin Wilcox, Edgar Wakelin, Brad Miles
  4. Relationships Between Simulated Deep Knee Bend Kinematics Following TKR and Patient Reported Return to Daily Activities, David Liu, Joshua Twiggs, Emily Bogue, Brad Miles
  5. Which osteoarthritic patients will be dissatisfied with their pain and function following total knee replacement surgery? Predicting outcomes at the preoperative consultation, Jonathan Negus, Joshua Twiggs, Brad Miles
  6. Correlations between anatomical complexity and postoperative TKA outcome in a multi-surgeon series of patients, David Parker, Joshua Twiggs, Brad Miles
  7. Step Count in the Early Postoperative Period is Indicative of Long-Term Return to Pre-operative State after TKA, Emily Bogue, Justin Roe, Lucy Salmon, Brad Miles
  8. Mechanically aligned knees exhibit greater medial shift of the patella than kinematic aligned knees: a simulation study, Jialong Li, Justin Roe, Brett Fritsch, Michael Solomon, Brad Miles
  9. Simulated Patello-Femoral Kinematics Correlate With Patient Reported Outcomes Following Total Knee Arthroplasty, Andrew Shimmin, Joshua Twiggs, Jonathan Bare, Brad Miles
  10. Conventional instrumentation achieves kinematic alignment more accurately than mechanical alignment, Michael Solomon, Edgar Wakelin, Joshua Twiggs, Brad Miles
  11. Kinematically Aligned TKAs show Faster Recovery in the Early Post Operative Period After Total Knee Arthroplasty, Michael Solomon, Emily Bogue, Caitlin Wilcox, Brett Fritsch, Brad Miles

Australian Knee Society, Noosa Heads, October 2017

  1. Clinical Validation for a Patient Specific Shared Decision Making Tool, Joshua Twiggs, Emily Bogue, Brad Miles
  2. Alteration of the Femorotibial Rotational Profile in Total Knee Arthroplasty Correlates with Poor Patient Reported Outcomes, David Parker, Joshua Twiggs, Brad Miles
  3. Biomechanical Simulations of TKA Outcome: A Pathway to Patient Specific Surgical Optimization?, David Dickison, Joshua Twiggs, Willy Theodore, Brad Miles, Brett Fritsch, Justin Roe

International Society for Technology in Arthroplasty, Seoul, Sept 2017

  1. Surgical Alteration Of The Tibial Joint Line During TKA Correlates With Poor Patient Reported Symptomatic Outcome, Joshua Twiggs, Emily Bogue, David Dickison, Brett Fritsch, Justin Roe, Andrew Shimmin, Brad Miles
  2. Relationships Between Simulated Kinematics And Patient Reported Outcomes During Activity Following Total Knee Arthroplasty, Joshua Twiggs, Emily Bogue, David Dickison, Brett Fritsch, Justin Roe, Andrew Shimmin, Brad Miles
  3. Digital Prehabilitation Reduces Length of Stay in Patients Who Undergo Total Knee Arthroplasty, Emily Bogue, Joshua Twiggs, Brad Miles, David Liu
  4. Clinical Validation of a Patient Specific Shared Decision-Making Tool for Use During the Pre Total Knee Arthroplasty Consultation, Emily Bogue, Michael Solomon, Brad Miles, Joshua Twiggs

International Society for Computer Assisted Orthopaedic Surgery (CAOS), Germany, July 2017

  1. Intra-Operative Registration Of 3D Data Capture With Pre-Operative Plan For TKA (Special Poster Presentation), Benjamin Roberts, Jason Hogan, Elizabeth Kolos, Richard Allom, Joshua Twiggs, Brad Miles
  2. Patient Specific Simulated Dynamics following TKA Correlate with Patient Reported Outcomes (Podium Presentation), Joshua Twiggs, Willy Theodore, Andrew Ruys, Justin Roe, David Dickison, Brett Fritsch, Brad Miles
  3. Digital Prehabilitation Reduces Length Of Stay In Patients Prior To TKA (Podium Presentation), Emily Bogue, Joshua Twiggs, David Li
  4. A Novel Method for Defining Ligament Characteristics In Subject Specific Dynamic Surgical Planning (Podium Presentation), Willy Theodore, Joseph Little, David Liu, Jonathan Bare, David Dickison, Mark Taylor, Brad Miles

International Society of Arthroscopy, Knee Surgery and Orthopaedic Sports Medicine, Shanghai, June 2017

  1. KOOS Symptoms And Pain Negatively Correlated To Patellofemoral Kinematics At Full Extension After TKA (Podium Presentation), Andy Li, Willy Theodore, Elizabeth Kolos, Justin Roe, David Dickison
  2. Femoral Rotational Axes Variation across Demographic and Radiological Measures (Poster), Joshua Twiggs, Caitlin Wilcox, Willy Theodore, Brad Miles, Justin Roe, David Dickison, Brett Fritsch
  3. Patient Specific Planning Incorporating Ligament Laxity (Poster), Willy Theodore, David Dickison, Joshua Twiggs, David Liu, Jonathan Bare, Brad Miles, Emily Bogue

European Federation of National Associations of Orthopaedics and Traumatology, Vienna, June 2017

  1. Patient Specific Activity Level Benchmarks During Recovery for Total Knee Arthroplasty (Special Poster Walk), Joshua Twiggs, Lucy Salmon, Brad Miles, Justin Roe
  2. Relationships Between Simulated Kinematics And Patient Reported Return To Daily Activities (Podium Presentation), David Liu, Joshua Twiggs, Emily Bogue, Justin Roe, David Dickison, Brett Fritsch
  3. Functional Radiography as A Means Of Integrating Joint Correctability Into Pre-Planning Workflows (Poster Presentation), Willy Theodore, David Liu, Joshua Twiggs, Kevin Wong, David Dickison, Emily Bogue, Jonathan Bare, Brad Miles
  4. Presentation of Non-Surgical Risk Factors As A Shared Decision Making Tool (Paper -Poster), Michael Solomon, Emily Bogue, Joshua Twiggs
  5. Prehabilitation Using A Novel, Mobile Application Reduces Length Of Stay In Patients Undergoing Primary Total Knee Arthroplasty (Poster), Emily Bogue, David Liu, Joshua Twiggs

European Knee Society, London, April 2017

  1. Assessing The TEA From The PCA, When Can We Use Three Degrees As A Reference? (Poster), Joshua Twiggs, Caitlin Wilcox, David Dickison, Brett Fritsch, Andrew Shimmin, Brad Miles
  2. Functional Radiography As A Means Of Integrating Joint Correctability Into Pre-Planning Workflows (Special E Poster), Willy Theodore, David Liu, Joshua Twiggs, Kevin Wong, Jonathan Bare, Daqvid Dickison, Emily Bogue, Brad Miles, Andrew Shimmin
  3. Presentation Of Non-Surgical Risk Factors As A Shared Decision Making Tool (Special E Poster), Michael Solomon, Emily Bogue, Joshua Twiggs, Andrew Shimmin and Brad Miles
  4. Relationships Between Simulated Kinematics And Patient Reported Outcomes During Activity Following Total Knee Arthroplasty (Podium Presentation), Joshua Twiggs, Emily Bogue, David Dickison, Brett Fritsch, Justin Roe, Andrew Shimmin, Brad Miles

Orthopaedic Research Society, San Diego, March 2017

  1. 3D Scan and Preoperative Imaging Based TKR Navigation (Poster Presentation), Benjamin Roberts, Brad Miles, Elizabeth Kolos, Steve McMahon, Michael Solomon, Brett Fritsch
  2. Femoral Rotational Axes Variation across Demographic and Radiological Measures (Poster Presentation), Joshua Twiggs, Caitlin Wilcox, Willy Theodore, Elizabeth Kolos, Brad Miles, Justin Roe, David Dickison, Brett Fritsch
  3. KOOS Symptoms and Pain negatively correlated to patellofemoral kinematics at full extension after TKA (Poster Presentation), Andy Li, Willy Theodore, Elizabeth Kolos, Justin Roe, David Dickison
  4. Prehabilitation Using a Novel, Mobile Application Reduces Length of Stay in Patients Undergoing Primary Total Knee Arthroplasty (Poster Presentation), Emily Bogue, Joshua Twiggs, David Liu

Australian Orthopaedic Association, Cairns, October 2016

  1. Surgeon Expectation Management, A Consultation Solution (Podium Presentation), Emily Bogue, Joshua Twiggs, Michael Solomon
  2. Patient Specific Simulated Kinematics following TKA and their Relationship to Patient Reported Outcomes (Podium Presentation), Joshua Twiggs, Brett Fritsch, Willy Theodore, Brad Miles, David Dickison, Justin Roe
  3. Femoral Rotational Axes Variation Across Demographic and Radiological Measures (Podium Presentation), Joshua Twiggs, David Dickison, Caitlin Wilcox, Brad Miles, Bede O’Connor
  4. Non-functional Radiology is Unable to Predict Deformity Correctability in Total Knee Arthroplasty (Podium Presentation), David Liu, Willy Theodore
  5. Prediction of Physical Activity Levels During Recovery for Total Knee Arthroplasty (Podium), Justin Roe, Lucy Salmon, Brad Miles, Joshua Twiggs, Ben Gooden

International Society for Technology in Arthroplasty Annual Congress, Boston, October 2016

  1. 3D Scan & Preoperative Imaging Based TKR Navigation as a Potential (Poster Presentation), Benjamin Roberts, Brad Miles, Elizabeth Kolos, Steve McMahon, Michael Solomon, Brett Fritsch
  2. Biomechanical Simulations of TKA Outcome: A Pathway to Patient Specific Surgical Optimization (Podium Presentation), Joshua Twiggs, David Dickison, Willy Theodore, Brad Miles, Brett Fritsch, Justin Roe
  3. Non-functional Radiology is Unable to Predict Deformity Correctability in TKA, Podium Presentation (Podium Presentation), Willy Theodore, David Dickison, Joshua Twiggs, David Liu, Jonathan Bare, Brad Miles, Emily Bogue
  4. Patient Specific Activity Level Benchmarks During Recovery for TKA (Podium Presentation), Brad Miles, Joshua Twiggs, Lucy Salmon, Justin Roe

Australian Orthopaedic Association, Brisbane, October 2015

  1. Static Measurements Of Tibio-Femoral Alignment Do Not Represent Functional Alignments In TKA Patients (Podium Presentation), Joshua Twiggs, Brad Miles, Justin Roe, Brett Fritsch
  2. Component Alignment Variation In Navigated TKAs And Patient Reported Outcomes (Podium Presentation), Brett Fritsch, Joshua Twiggs, Justin Roe, Brad Miles
  3. Mechanical and Kinematically Aligned TKA Simulation Results of a Series of Patients (Poster), Brad Miles, Justin Roe, David Dickison, Willy Theodore, Joshua Twiggs, Bede O’Connor, Brett Fritsch
  4. Patient Reported Outcome Prediction for TKA Using Non-surgical Factors (Poster), Justin Roe, Lucy Salmon, Joshua Twiggs, Brad Miles

International Society for Technology in Arthroplasty Annual Congress, Vienna, September 2015

  1. A Probabilistic Prediction Tool for Patient Reported Outcomes (Short Talk), Justin Roe, Lucy Salmon, Joshua Twiggs, Brad Miles
  2. Mechanical and Kinematically Aligned TKA Simulation Results of a Series of Patients (Podium Presentation), Brad Miles, Justin Roe, David Dickison, Willy Theodore, Joshua Twiggs, Jim Pierrepont, Bede O’Connor, David Liu, Brett Fritsch

2013

Australian Knee Society Annual Science Meeting, Hamilton Island, October 2013

  1. Static Measurements of Tibio-Femoral Alignment do not Represent Functional Alignment in TKR Patients (Podium Presentation), David Dickison, Willy Theodore, Joshua Twiggs, Jim Pierrepont, Bede O’Connor, Brad Miles

2012

Australian Orthopaedic Association Annual Scientific Meeting, Sydney, October 2012

  1. Patient Specific Biomechanical Modelling: A Predictor of Post-Operative Function After TKR? (Podium Presentation), Brad Miles, Jim Pierrepont, Brian Cheung, Scott Bergeon, David Dickison, Brett Fritsch, Len Walter, Ed Marel, Michael Solomon, Rami Sorial, Bede O’Connor, Justin Roe

International Society for Technology in Arthroplasty Annual Congress, Sydney, October 2012

  1. Mechanical and Kinematically Aligned TKA Simulation Results of a Series of Patients (Podium Presentation), Brad Miles, Justin Roe, David Dickison, Willy Theodore, Joshua Twiggs, Jim Pierrepont, Bede O’Connor, David Liu, Brett Fritsch
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