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

Samuel Grasso

Samuel Grasso B. Engineering, PhD

Clinical Applications Engineer

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.

Yoong Lim

Yoong Lim PhD

Research Associate

Yoong is a research associate and conducts biomechanical research relating to knee conditions. Here, he conducts biomechanical experiments and computational analyses using SORI’s state-of-the-art 3D biomechanics laboratory. Yoong’s current research projects are return-to-sport assessments for anterior cruciate ligament (ACL) reconstruction patients and gait analyses for ACL and high tibial osteotomy (HTO) patients. His research interests are musculoskeletal modelling and ultrasound image processing.

Yoong has completed postdoctoral trainings and a PhD (Biomechanical Engineering, University of Melbourne) on computational and experimental biomechanics.

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 MPhil

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.

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 Administration

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

Darshan – DSA Passport Photo Updated

Dr Darshan Angadi

Clinical Fellow

Darshan Angadi is a UK trained orthopaedic surgeon. Following his medical graduation in 2002 he completed basic surgical training and worked as DePuy clinical research fellow between 2008 and 2010.

Subsequently he joined the Cambridge orthopaedic training programme in 2011. He was awarded the AO research grant in 2012 for biomechanical analysis of adolescent intramedullary implant and completed his higher research degree (MD) from the University of Birmingham in 2017. He became a Fellow of the Royal College of Surgeons the same year and completed his specialist training in August 2018.

He has since worked as knee fellow at Cheltenham, UK and was awarded the European Society for Sports Traumatology, Knee Surgery and Arthroscopy (ESSKA) travelling fellowship in 2019 to work with Prof. Thomas Müllner in Vienna. His research interests include implant biomechanics, hip and knee surgery and has peer reviewed publications in these areas among others.




Vikram Kandhari

Dr Vikram Kandhari

Clinical Fellow (Janurary 2019 to December 2019)

Doctor Vikram Kandhari, is an Indian fellow. He finished graduate education in Medicine from Government Medical College, Nagpur in 2009 and joined the program for post-graduate training in orthopedics at Seth G. S. Medical College and KEM Hospital, Mumbai. This institute is the oldest and the largest orthopedic training facility in Mumbai. He finished his training in 2014 and continued to work as senior resident till mid of 2017. During this tenure along-with his clinical responsibilities, he also worked as a part time basic science and clinical research fellow. From mid of 2017 to the end of 2018 he has completed short-term fellowships in knee surgery in different parts of the world. He has now joined SORI to further refine his surgical skills and also perceive his research interests. His specific research interests include the problems related to patello-femoral joint in post-op total knee arthroplasty patients and exploring the new technique of anterior cruciate ligament repair.


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.