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EBP_BLP_UoM_Werribee-3177_Emily Bartlett

ARC Training Centre for

Medical Implant Technologies

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Meet the PhD students
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Xin Li
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Project title

Antimicrobial nanomaterials for medical implants

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Supervisors 

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Professor Andrea O’Connor, Department of Biomedical Engineering, Faculty of Engineering and Information Technology, The University of Melbourne

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Dr Daniel Heath, Department of Biomedical Engineering, Faculty of Engineering and Information Technology, The University of Melbourne

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Professor Neil O’Brien-Simpson, Melbourne Dental School, The University of Melbourne

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Xin Li with Prof Andrea O'Connor

Xin Li is undertaking a PhD research project with the Department of Biomedical Engineering, The University of Melbourne. She has long held an interest in undertaking research since graduating with a Bachelor of Medicine (Dentistry) at Tianjin Medical University, China. While conducting research in cancer for the Master of Medicine (Dentistry) at Lanzhou University, Xin grew to appreciate the importance of technology in advancing treatments for patients. She progressed to enrolled in a Master of Engineering (Biomedical) majoring in biomedical engineering at the University of Melbourne as the research program would enable Xin to combine her knowledge in medicine with engineering skills. The research experience in the BioFab3D@ACMD facility in Melbourne has broadened her horizon in the biomaterials field. This encouraged her to embark on a PhD candidature to advance her biomedical engineering skills and capabilities.

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Xin’s PhD project aims to address anti-microbial challenges affecting medical implants. Medical implants-associated infections remain the concern of post-operative infections. This is mostly due to the application of biomaterials of the implants. Even though the drug delivery coupled system showed an antimicrobial capacity, the drug resistance of bacteria remains challenging.  Xin’s project focuses on anti-microbial nanomaterials for medical implants, aiming to improve the antimicrobial properties of skeletal reconstruction implants to reduce the risk of infection and minimize the potential development of microbial resistance.

Sarah Woodford
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Project title

Joint function of the healthy, osteoarthritic and temporomandibular joint (TMJ) replacement jaw

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Supervisors 

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A/Professor David Ackland, Department of Biomedical Engineering, Faculty of Engineering and Information Technology, The University of Melbourne

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Professor Peter Lee, Department of Biomedical Engineering, Faculty of Engineering and Information Technology, The University of Melbourne

 

Dr Dale Robinson, Department of Biomedical Engineering, Faculty of Engineering and Information Technology, The University of Melbourne

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Sarah Woodford with A/Prof  David Ackland

Sarah Woodford completed a Masters degree in Mechanical Engineering at the University of Melbourne, and was exposed to applications in the medical device industry, which inspired her to pursue a career working as a design engineer for a large hearing aid manufacturer in Denmark. Upon returning to Australia she decided to undertake a PhD, working with Dr David Ackland and his team in the Department of Biomedical Engineering. Sarah was particularly interested in their work involving customized 3D printed temporomandibular joint (TMJ) implants and their significant impact on the quality of life of implant recipients.

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Currently the design and post-operative evaluation of TMJ implants is limited by the capacity to accurately assess jaw motion and jaw loading. The research that Sarah is undertaking involves investigating the structure and function of the jaw, and the differences in its kinematics between healthy, osteoarthritic, and joint replacement patients. Ideally this project will lead to improved implant design and a deeper understanding of dynamic jaw joint function.

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This project also has a personal aspect for Sarah. With a sibling with TMJ deformities, Sarah is acutely aware of the life changing impact of these devices and their developments in terms of increasing functionality, reducing pain levels and providing excellent cosmetic outcomes for the patient.

Stepanka Haiblikova

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Project title

Three-dimensional behavior of the human intervertebral disc under static and dynamic loading conditions; progressing towards automated patient-specific finite element (FE) models

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Supervisors 

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Professor Peter Lee, Department of Biomedical Engineering, Faculty of Engineering and Information Technology, The University of Melbourne

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Professor Duncan Shepherd, Department of Mechanical Engineering, The University of Birmingham

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Stepanka Haiblikova with Prof Peter Lee

Biomedical engineering is providing Stepanka Haiblikova with an opportunity to be a part of an inspiring and rapidly developing field which aims to improve the treatment of disease. As Stepanka highlights "With the chance to be involved in potentially life-saving outcomes, why would I want to study anything else?”

 

Although Stepanka was initially discouraged from studying engineering, her path to becoming a biomedical engineer was straightforward. Alongside pursuing a Master’s Diploma in Biomechanics at Czech Technical University in Prague, Stepanka had the opportunity to study abroad. It was Professor Teo Ee Chon from Nanyang Technological University in Singapore who triggered her interest in spinal biomechanics.

 

Stepanka’s PhD project is focussed on understanding the mechanics of intervertebral disc which is essential for many clinical applications. Treatment of lower back injuries or disc degeneration and development of intervertebral disc replacement are limited. Computer simulations and finite element (FE) modelling proved to be a useful tool for surgical planning and implant design. However, validation of these FE models presents a difficult part of the process. In vitro measurement of internal strains of the human disc would address this problem and contribute to the development of an automatically generated patient-specific model of the spine.

 

Stepanka has chosen to undertake her PhD at The University of Melbourne because of the biomedical engineering expertise and the advance equipment that is available for her research. She believes that the combination of the cultural heritage and diversity of the city and the surrounding wilderness makes Victoria the place to be.

Yihang Yu
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Project title

Biomechanical modelling and design of personalised spinal implants.

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Supervisors 

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Professor Peter Lee, Department of Biomedical Engineering, Faculty of Engineering and Information Technology, The University of Melbourne

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Associate Professor David Ackland, Department of Biomedical Engineering, Faculty of Engineering and Information Technology, The University of Melbourne

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Yihang Yu and Prof Peter Lee

Yihang Yu completed his Masters Degree in Mechanical Engineering at the University of Melbourne. Inspired by his capstone project  “Design and Development of a Soft Prosthetic Wrist”, he became interested in the field of Biomedical Engineering. He decided to pursue this passion with Professor Peter Lee and his team, and find new ways of designing orthopaedic spinal implants.

 

Yihang’s project aims to solve some the major problems in spinal implants such failure to provide fusion. To solve this, he will be working on developing personalised 3D printed spinal implants that involves using finite element modelling tools, materials structure optimisation methods and additive manufacturing technology. The project will focus on placement of the implants, and how the implant size, porosity, density, lattice structure will affect its performance. The improved personalised implant design would help surgeons achieve the desired clinical outcome.

 

There is also a personal story to Yihang’s chosen field of research. He has high respect for people working in the medical field; his mother is an ophthalmologist.

Yichen Huang

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Project title

Stability of the glenohumeral joint after anatomic and reverse total shoulder arthroplasty

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Supervisors 

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Associate Professor David Ackland, Department of Biomedical Engineering, Faculty of Engineering and Information Technology, The University of Melbourne

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Professor Peter Lee, Department of Biomedical Engineering, Faculty of Engineering and Information Technology, The University of Melbourne

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Dr Dale Robinson, Department of Biomedical Engineering, Faculty of Engineering and Information Technology, The University of Melbourne

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Yichen Huang with A/Prof David Ackland

Yichen has developed an interest in engineering long time ago. He graduated with a Bachelor’s Degree (Engineering) at the South China University of Technology, China. During those four years, he was always enthusiastic in participating in all kinds of engineering projects. During the last two years of his undergraduate study, he completed a National Innovation Project of China with his schoolmates. With the desire to learn more in engineering, he came to the University of Melbourne in 2017 to study for a Master’s Degree in engineering. During the two years of his Master’s Degree study, he was exposed to more advanced knowledge and techniques in engineering field. He was especially interested in the application of engineering tools in solving biomedical problems. Therefore, aiming to explore more in this area, he made a decision to undertake a PhD research project and joined A/Prof David Ackland’s team in the Department of Biomedical Engineering.

 

Yichen’s PhD project aims to investigate the instability complication associated with shoulder arthroplasty. Shoulder arthroplasty is a surgical procedure in which all or part of the glenohumeral joint is replaced by a prosthetic implant. Anatomical total shoulder arthroplasty (TSA) and reverse total shoulder arthroplasty (RSA) are the most common shoulder arthroplasty procedures. However, instability still occurs at a significant rate after TSA and RSA. Once instability occurs, revision arthroplasty is often required, bringing more pain to the patients. Yichen’s project involves developing and validating computational models of the native shoulder and the shoulder after TSA or RSA and using these models to evaluate the influence of several design variables on the stability of glenohumeral joint after shoulder arthroplasty. Hopefully this project will improve our understanding of shoulder arthroplasty and lead to better implant design.

Lauren Wearne
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Project title

Quantifying the interference fit achieved by cementless tibial trays and its effect on primary stability

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Supervisors 

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Associate Professor Egon Perilli, Medical Device Research Institute, College of Science and Engineering, Flinders University

 

Professor Mark Taylor, Medical Device Research Institute, College of Science and Engineering,Flinders University

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Lauren Wearne and A/Prof Egon Perilli

Lauren completed a Bachelor of Science (Physics) and a Bachelor of Biomedical Engineering at Flinders University. It was only during her final year of her undergraduate study, whilst working with a Paralympian that had multiple sclerosis for her honours project, did Lauren consider pursuing a PhD. Lauren particularly liked analysing the muscle EMG data and correlating this quantitative and physiological measurement to the athlete’s personal experience. It was also during this time that she was introduced to Medical Physics and Egon Perilli, who is now her primary supervisor. Medical Physics provided Lauren with the opportunity of combining her two undergraduate degrees into a single profession whilst simultaneously pursuing research.

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Lauren’s PhD considers the interference fit of cementless tibial trays. Cementless fixation of implants have several potential advantages, including preservation of bone stock and ease of revision. This is especially important considering that patients who receive a primary knee replacement are younger than previously. Despite the importance of interference fit, little is understood. The majority of computational models ignore the influence of press-fit when assessing primary stability or other models use values that are significantly lower than those found clinically. Through the use of micro-CT and digital volume correlation, Lauren aims to provide some of this information by quantifying the extent of done damage induced during implantation and the primary stability of cementless tibia trays.

Shareen Chan

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Project title

Development of paste inks for 3D printing of Multi-scaled Porous Ceramic Architectures

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Supervisors 

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Professor George Franks, Department of Chemical Engineering, Faculty of Engineering and Information Technology, The University of Melbourne

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Professor (Honorary) David Dunstan, Department of Chemical Engineering, Melbourne School of Engineering, The University of Melbourne

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Dr Daniel Heath, Department of Biomedical Engineering, Faculty of Engineering and Information Technology, The University of Melbourne

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Shareen Chen and Prof George Franks

Shareen Chan’s passion for Additive Manufacturing (or 3D printing) was ignited during her studies in Mechanical Engineering (Bachelor with Honours) at the National University of Singapore. After completion, she worked as an engineer in the consumer product and medical device testing industry, where she developed a deeper appreciation for biomedical technology and its impact on the quality of life.  After nearly a decade in industry, she decided to further pursue both her interests in a PhD project with Prof. George Franks in the Department of Chemical Engineering, and in collaboration with Dr. Daniel Heath in the Department of Biomedical Engineering.

 

Bone is the second most transplanted tissue worldwide, with allo- and autografts as the ‘gold standard’. Despite their limited availability and other shortcomings, the alternative – synthetic bone substitutes or scaffolds – currently fall short due to incompatible mechanical properties and inferior osteoconductivity. Shareen’s project aims to solve some of these challenges through colloidal processing of bioceramics and 3D printing, namely extrusion-based Direct Ink Writing, resulting in scaffold structures with multiple scales of porosity. The relationships between formulation, structure, properties and performance will be investigated. Potential outcomes include improved scaffolds for orthopaedic repair and a better understanding and control of the fabrication process.

Sarah Safavi

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Project title

​Design and manufacture of composite and structures for maximum biomechanical integration

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Supervisor

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Professor Peter Lee, Department of Biomedical Engineering, Faculty of Engineering and Information Technology, The University of Melbourne

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Sarah Safavi has always been fascinated by technology and its impact on our lives which is why she decided to pursue a career in engineering. With both her parents being doctors, she also had a great interest in medicine, and it quickly became clear to her that the field of biomedical engineering was what she was most passionate about.

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Sarah studied Mechanical Engineering at the Dresden University of Technology in Germany. During that time, she had the opportunity to gain insights into biomechanics and implant development at the Fraunhofer Institute for Machine Tools and Forming Technology. This experience, as well as her time as a research assistant at the University of Otago in Dunedin, New Zealand, not only further encouraged her to become a biomedical engineer but also to pursue a career in research.

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Sarah’s PhD project is dedicated to the improvement of longevity hip implants. Due to aseptic loosening, many patients undergo revision surgery a few years after implantation. The aim is to target this issue by developing additively manufactured personalised, porous structures with optimised material properties.

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The University of Melbourne caught Sarah’s attention as it is a renowned university with high expertise in the biomedical field and she is very happy about the opportunity to undertake her research here. 

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Sarah Safavi and Prof Peter Lee

E Hong (Ryan) Tiew

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Project title

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Development of safety envelopes for osseointegrated implant failsafe mechanisms

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Professor Peter Lee, Department of Biomedical Engineering, Faculty of Engineering and Information Technology, The University of Melbourne

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Associate Professor David Ackland, Department of Biomedical Engineering, Faculty of Engineering and Information Technology, The University of Melbourne

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Ryan has always been passionate about science and technology and its impact on improving people's lives.  After completing a Bachelor's degree in Mechanical Engineering from The Ohio State University, USA. He worked as a research assistant at the university with Professor Manoj Srinivasan's lab studying bipedal locomotion. He later went on to work in product development at a medical device company for a year.  It was then he realised that he wanted to further his career in research and development and decided to pursue a PhD in biomedical engineering at The University of Melbourne.

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Ryan’s project focuses on the betterment of failsafe mechanisms of osseointegrated implants in transfemoral amputees. Osseointegration is the direct fixation of load bearing implants to the bone. For transfemoral amputees, the implant is directly attached to the residual femur. In high loading conditions, such as a fall, implant loosening and periprosthetic fractures may occur as loads are directly transferred from the prosthesis to the implant and the bone. Failsafe mechanisms address this issue by detaching prosthesis from implant when a certain threshold of loading is observed. However, issues still remain where these failsafe mechanisms are sometimes activated at improper times and the engineering design of said failsafe also remains a challenge due to tight safety margins. This is because loading conditions at the bone-implant interface are still not fully understood, especially in adverse events such as falling. Ryan’s project aims to address these issues by studying said loads and developing a safety envelope in which these failsafe mechanisms can safely operate in.

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E Hong (Ryan) Tiew

Ayda Karimi Dastgerdi

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Project title

Optimization of Paediatric Anterior Cruciate Ligament Reconstruction Surgery Using a Sequentially Linked Finite Element-Musculoskeletal Modelling Approach​

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Supervisor

Associate Professor David Saxby, Griffith Centre for Biomedical and Rehabilitation Engineering (GCORE), Menzies Health Institute Queensland

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To see the sparkle in the eyes of a person who just received help, to sense the smile in the face of a person who is released from pain, and to embrace a person whose illness has recently been healed, is the greatest pleasure one can experience. Ayda has sensed this urge to help other people in their life and activities since she was a kid. People who created tools to help other human beings were always her heroes. So as a matter of speech, she was born to become a biomedical engineer!

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Ayda studied Biomedical Engineering-Biomechanics for both her master and bachelor at University of Isfahan and Amirkabir University of Technology (AUT), respectively. The interdisciplinary nature of her major has made it possible for her to acquire knowledge in both engineering and biological principles. This experience, as well as her time as a research assistant at AUT, further encouraged her to pursue a career in research.

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Ayda’s PhD project is dedicated to the optimization of paediatric ACL surgeries. The optimal graft choice for ACL reconstruction remains controversial and it continues to be an active area of research. With the variations in insertion sites, graft pre-tension, graft type, and technique, the surgeons have many options to consider when reconstructing the ACL. The aim of her project is to use a sequentially linked Musculoskeletal-Finite Element model of the knee joint as a tool for optimizing ACLR surgery.

Ayda Karimi Dastgerdi

Emmanuel Eghan-Acquah

Project Title

Performance of the blade plate system in proximal femoral osteotomy: biomechanical analyses
 
Supervisors
A/Professor Christopher Carty, Queensland Advancing Clinical Research Fellow, Griffith Centre of Biomedical and Rehabilitation Engineering (GCORE), Menzies Health Institute Queensland, Griffith University
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Dr Martina Barzan, Griffith Centre of Biomedical & Rehabilitation Engineering (GCORE), Griffith University

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Dr Azadeh Nasseri, School of Health Sciences and Social Work, Griffith Centre of Biomedical & Rehabilitation Engineering (GCORE), Griffith University

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Professor Stefanie Feih, School of Engineering and Built Environment, Griffith University 

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Azadeh Nasseri,  Emmanuel Eghan-Acquah and Christopher Carty

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Emmanuel has always harboured a passion for orthopaedics since his formative years as an undergrad at Kwame Nkrumah University of Science and Technology, Ghana. It was particularly during his Master’s in Engineering degree program that he developed a strong desire to pursue a career in medical implant technologies. He went on to work for a global implants manufacturing company where he gained valuable skills in the application of biomechanical principles in orthopaedics. His expertise lies in the application of finite element methods in orthopaedics, computer-aided design optimizations, musculoskeletal biomechanics, virtual surgical planning, material testing and evaluation, and additive manufacturing.

 

Emmanuel’s PhD project investigates the biomechanical performance of the blade plate system in proximal femoral osteotomies. The blade plate is commonly used in proximal femoral osteotomy for the correction of various paediatric hip deformities. A systematic investigation of their performance will aid in the optimisation of their design parameters to improve upon their short and long-term biomechanical performance. Emmanuel’s PhD project aims to offer a better understanding of paediatric bone remodelling following osteotomy, inform optimal blade plate design, and contribute to optimal surgical procedures and considerations. He hopes to achieve his research goals using finite element analyses and musculoskeletal modelling.

Ishaan Jagota

Project Title

Anatomical recreation and remodelling in Total Knee Arthroplasty and its relationship to patient outcomes
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Supervisors
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Prof Mark Taylor 
College of Science and Engineering
Flinders University
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Dr Rami Al- Dirini
College of Science and Engineering
Flinders University

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Ishaan Jagota and Mark Taylor

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Since senior high school, Ishaan has been intrigued by the ways in which we could utilise science and technology to enhance our health and quality of life. This led him to pursue a dual undergraduate degree with a Bachelor in Biomedical Engineering (Honours) and a Bachelor of Commerce (Finance) at Sydney University.

 

Although he had considered pursuing a PhD directly after his undergraduate degree, he  wanted to first gain some industry experience to learn how to enhance the clinical applicability of his research output.  He is very grateful to have this opportunity through Flinders University and ARC CMIT alongside 360 Med Care, which will allow him to pursue research with real-world implications.

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His PhD focuses on advancements in surgical planning for and execution of total knee arthroplasty with a focus on the improvement of patient outcomes. The project investigates preoperative and intraoperative surgical factors and their impact on patient outcome and aims to use this information to develop easy to use and clinically applicable models that can assist clinicians with their surgical decision-making.

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