Our Research team operates out of our Chatswood office, while also collecting data at the Mater and RPA hospitals. Working across the organisation, our researchers regularly collaborate with other community service agencies, universities, research institutes and government agencies to complete research studies.

Research Team


Aaron Beach B.App.Sc (Ex & Sp Sci), PhD

Research Assistant

Aaron joined the SORI team in February 2015. He works as as a research assistant, overseeing motion capture data collection and biomechanical analysis. Aaron’s major projects have involved investigating the effects of total knee replacements on gait. He is currently responsible for the ACL Return to Sport screening program, as well as providing support for the fellowship program.

Aaron has completed a Bachelor of Applied Science (Exercise and Sport Science) at the University of Sydney in 2010, and was awarded a PhD in Sports Biomechanics from the University of Sydney in 2016.

Darli Myat

Darli Myat, PhD

Research Assistant

Darli joined SORI research team in March 2017 and is working as a research assistant. Darli is responsible for collecting data, managing and auditing database for research projects. Darli completed a Bachelor of Engineering at University of New South Wales (UNSW) in 2009. She was awarded her PhD at Victoria University in 2014.

Prior to joining SORI, she worked in clinical research/administration environment, supporting different health-related research projects by assisting in preparation of ethics applications, collecting data and analysing data in both quantitatively and qualitatively.


Gloria Jeong

Clinical Research Associate

Gloria graduated with MPhil (Medicine) from the University of Sydney in 2014.
After working as a research assistant at the Charles Perkins Centre at the University of Sydney, she joined the SORI team as a Clinical Research Associate in 2016. Gloria's primary responsibilities at SORI include clinical data collection, managing and coordinating regular database audits.

Samuel Grasso

Samuel Grasso, PhD

Research Assistant

Samuel has completed a Bachelor of Mechanical Engineering degree and a Doctor of Philosophy in Biomedical Engineering (2018) at the University of Sydney. His research incorporates computational and image based methodologies to measure and optimise ligament position in ACL reconstruction on a patient specific basis, to improve pre-surgical planning processes and post-operative assessment.

Samuel is responsible for Sydney Orthopaedic Research Institutes research and development activities involving computational modelling.

Nadia Mazari

Nadia Mazari

Clinical Research Associate

Nadia joined the SORI team in March 2016, working part-time as a Clinical Research Associate. She is currently studying a Bachelor of Science at the University of Sydney, majoring in Nutrition and Metabolism. Nadia primarily works at our research rooms in the Mater Hospital in North Sydney.

Her primary responsibilities at SORI include clinical data collection from patients attending the clinics, maintaining the patient database and assisting the SORI research team with ongoing projects.

Finance and Administration

Lionel Jeyaraj

Lionel Jeyaraj FCCA, FIPA, FFA

Finance and Admin

Lionel is a member of the Chartered Association of Certified Accountants UK and Institute of Public Accountants in Australia. He brings over 30 years of extensive domestic and international business accounting and advisory services, including eight years in the accounting profession. He has accumulated a wealth of experience in business management, tax accounting and compliance, financial analyses, auditing, statutory and ASX reporting, technology and change management. Lionel is focused on business results and improvement though effective processes, systems, reporting and efficient asset management.

Lionel has industry experience in various capacities ranging from Accountant to CFO encompassing information technology, telecommunications, education, gaming, leisure, research, marketing, venture capital and not for profit organisation.

Current Fellows

Sven Putnis 2

Dr Sven Putnis

Clinical Fellow (January 2018 to December 2018)
Murilo Leie

Dr Murilo Leie

Clinical Fellow (January 2018 to December 2018)

Doctor Murilo Anderson Leie, is a Brazilian-German fellow who  graduated in Medicine at the Federal University of Rio Grande do Sul - Porto Alegre Brazil in 2011 and was approved in 2012 to join the Training in Orthopaedic Surgery at the Hospital de Clinicas de Porto Alegre, which is the biggest school-hospital in South America, with more than 47.000 surgeries performed each year. In 2015 he finished the training in orthopaedic and started an additional year in Knee Surgery Fellowship at the same Hospital as well as starting a Masters Degree in Surgery with a focus in Knee Surgery, certified by the Federal University of Rio Grande do Sul. Parallel to the academic and research activities he also has been practicing knee surgeries in the private and public systems in Brazil, such as ACL reconstructions and Total Knee Replacements. He has now joined SORI to develop his surgical skills and perform research, particularly regarding ACL reconstruction and Total Knee Replacements.

Pavan Chebbi

Dr Pavan Chebbi

Current Fellow (June 2017 to June 2018)

Dr Pavankumar Chebbi completed MS Ortho in 2008 and MCh Orth from U.K in 2010. His special interests are knee arthroscopy and sports medicine. He has been an on-field physician at various sporting events including the Indian national athletics championships 2015. He has 3 indexed publications to his name. He is currently completing a fellowship at the Sydney Orthopaedic Research Institute.

Dr Thomas Neri

Research Fellow (November 2017 to October 2018)

Dr Takeshi Oshima

Research Fellow (April 2018 to March 2020)

Dr Takeshi Oshima obtained his MD degree from Kanazawa University (Ishikawa, Japan) from March 2004 to December 2010. He did his orthopaedic training at several municipal hospitals from May 2012 to April 2014, a Fellowship in Knee Surgery at Kanazawa University (Ishikawa, Japan) from April 2014 to September 2016 and he obtained his PhD degree from Kanazawa University in May 2018.

He has been working as a Surgeon in Seirei Hospital (Ishikawa, Japan) since October 2016.

Right now he is a research fellow at the Sydney Orthopaedics Research Institute, investigating the relationship between tibial tunnel size and the lateral meniscus extrusion after primary ACL reconstruction.


Dr Antonio Klasan

Clinical Fellow (June 2018 to May 2019)

Dr. Antonio Klasan obtained his medical degree and did his internship at the University of Zagreb in Croatia from Sept 2004 until Sept 2011. He did his specialist training in 4 clinics in Germany from October 2011 until January 2018. He is an orthopaedic and trauma surgery specialist as well as a specialist in emergency medicine. After finishing his doctorate in 2015, he continued his research in the areas of knee, hip and shoulder, both clinical and biomechanical, many of them still running.