Principal Investigators

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A/Prof. Jason Pui Yin Cheung

MBBS, MMedSc, MS, PDipMDPath, MD, MEd, FHKAM(orth), FRCSEd(orth), FHKCOS 

joined the Department of Orthopaedics and Traumatology as a Clinical Assistant Professor in November 2012 and was promoted to Clinical Associate Professor with early tenure in 2018. After obtaining his MBBS degree from The University of Hong Kong in 2007, Dr Cheung received his training in Orthopaedics at Queen Mary Hospital. He completed his membership examination in 2009 and obtained his Masters of Medical Sciences degree from The University of Hong Kong in 2012. He completed his specialist training in 2014. He obtained his Master of Surgery in 2017, Postgraduate Diploma in Molecular and Diagnostic Pathology in 2018, Doctor of Medicine in 2019, and Master of Education in 2021.


Dr Cheung has been the Head of the Department since Dec 2021. As of date, he has published over 218 peer-reviewed papers in SCI journals, 19 book chapters and 56 invited lectures and over 310 conference papers. He has received over 40 international awards. He is currently the Research Chairman of AOSpine Asia Pacific region, the Immediate Past Chairman of APSS and the Asia-Pacific representative of ISSLS. His main clinical research interests are paediatric growth and spinal deformity, lumbar degenerative disorders, lateral access surgery and novel imaging and clinical phenotyping.


Dr. Teng Grace Zhang

PhD (Medicine), MBME, BMS

is a biomedical engineer with a medical background. Most of Grace’s research combines both disciplines by focusing on the modelling of biological systems with direct clinical applications including telemedicine, auto-diagnosis, surgical planning and tracking to facilitate real-time feedback with minimal radiations.


Currently, Grace is a Research Assistant Professor, at the Digital Health Laboratory of the Clinical Medicine School, Faculty of Medicine, The University of Hong Kong (HKU). Previously, Grace has worked for nearly seven years as a Scientific Officer at the St George Clinical School of the University of New South Wales (UNSW, Sydney, Australia). All Grace’s tertiary education including her PhD (Australian Postgraduate Award) was completed at UNSW. Grace also has experience in running multiple instruments and drug trials funded by Medtronic and Sigma. She’s experienced in managing a new system developed as she worked in Kunovus Australia for two years as a system engineer prior to coming to the University of Hong Kong. Members of IEEE, EMBS, ABEC etc. The current on-going projects include ITS/404/18 for telemedicine, AOSpine for automated spine malalignment screening, MRP/038/20X for non-radiation AI diagnosis and ITS/329/19 for anti-migration bone screws.

Research Fellows


Dr. Nan Meng

PhD (EEE), BEng

received his B.S. degree (with distinction) in 2015 in Computer Science from the University of Electronic Science and Technology of China (UESTC), and the Ph.D. degree in 2020 in Electric and Electronic Engineering from University of Hong Kong. At HKU, he conducted research for the image-based cancer diagnosis and released the first large-scale dataset for human somatic bright-field cells. He also conducted research for Light Field Reconstruction in Imaging Systems Laboratory supervised by Prof. Edmund Y. Lam. During his Ph.D., he has consulted for an AI company in the areas of multi-view imaging systems and HKU Medicine School about medical image processing and analysis. After graduation, Dr. Meng joined the Digital Health Lab Laboraotry in HKU as a research engineer.


Dr. Prudence Cheung PhD (Medicine), BDSc

received the BDSc degree from the University of Melbourne, Australia. She completed her Ph.D. at the Department of Orthopaedics and Traumatology, The University of Hong Kong. She has conducted numerous clinical studies, randomised controlled trials and laboratory tests. Her main research interests include idiopathic scoliosis, developmental spinal stenosis and health-related quality of life of patients and their caregivers.


Dr. Chenxi Yu

PhD (Medicine), MD

received his MD in Surgery (Orthopedics) in 2018 from Shandong University, and Ph.D. degree in 2021 from Tsinghua University (Peking Union Medical College). During his Ph.D., His main research interests include the genetics research of congenital skeletal deformities, molecular genetics experiments and genetic data analysis.

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Dr. Mohsen Mohammadi

PhD (Civil Eng), MSc, BSc

is a Mechanical Engineer with a BSc and MSc in Solid Mechanics with several years of industrial and academic research experience. He graduated with Ph.D. in Civil and Structural Engineering from the City University of Hong Kong in 2018. During his Ph.D., Dr. Mohammadi has developed a unique novel testing method and facility for tri-axial and bi-axial compression of concrete under non-uniform confinement of fiber-reinforced polymers. As a CAE engineer and an expert in nonlinear finite element analysis (FEA), he has developed and modified several plasticity-based constitutive material models through his novel tests. Mohsen currently hold the position of postdoctoral fellow at the Department of Orthopaedics and Traumatology, Medicine School, the University of Hong Kong. His current research interest is numerical and experimental analysis of 3D printed implants with the objective of structural optimization and biocompatibility enhancement.



A/Prof. Kwan-Yee K. Wong

received the BEng degree (Hons.) in computer engineering from The Chinese University of Hong Kong, in 1998, and the MPhil and PhD degrees in computer vision (information engineering) from the University of Cambridge, in 2000 and 2001, respectively. Since 2001, he has been with the Department of Computer Science at The University of Hong Kong, where he is currently an associate professor. His research interests are in computer vision and machine intelligence. He is currently an editorial board member of International Journal of Computer Vision (IJCV).


A/Prof. Tak-Man Wong

is the Assistant HCE of The University of Hong Kong – Shenzhen Hospital. He is also a Clinical Associate Professor working at the Department of Orthopaedics and Traumatology, The University of Hong Kong. He has published over  20 peer-reviewed papers in SCI journals and over 50 invited lectures. He is currently the Community Officer of AOTrauma Asia-Pacific, Committee member of SICOT education committee and National Delegate of Asia Pacific Orthopaedic Association. His research interests include rotator cuff healing and augmentation, management of bone defects especially osteoporotic bones.

Prof. Ashish Dhar Diwan

is the Director of Spine Service at the Department of Orthopaedic Surgery, St. George Hospital, University of New South Wales. He is also the Director of Bone Biology at the Orthopaedic Research Institute. Within the University of New South Wales, he also functions as the Post Graduate Coordinator for St George & Sutherland Clinical School. Prof. Ashish Diwan mentored Dr Teng Zhang during her PhD study and also continuously advises the work of the Digital Health Laboratory in both non-surgical and surgical management of spine malalignment.


Prof. K. Y. Sze

graduated from the Department of Mechanical Engineering, the University of Hong Kong with First Class Honours, and as the Williamson Prizeman of the year. He continued his studies in the same Department and earned his Ph.D. three years later. Before returning to his alma mater, he had taken up research and faculty positions in Canada, Singapore, and Hong Kong. He serves on the editorial boards of Finite Elements in Analysis & Design and a couple more journals. Professor Sze is a Registered Professional Engineer and a Chartered Engineer. His research areas include computational mechanics, advanced finite element methods, biomechanics, mechanistic modeling of soft robots, vibrations, fracture mechanics, and drape simulation.

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Dr. Xiaowei Deng 

is an assistant professor in the Department of Civil Engineering, the University of Hong Kong. He obtained a Ph.D. degree in aerospace engineering from the California Institute of Technology. He received the William F. Ballhaus Prize for outstanding Ph.D. dissertation, and two best paper awards from the American Society of Mechanical Engineers (ASME) and American Institute of Aeronautics and Astronautics (AIAA), respectively. Dr. Deng is the awardee of the First Class of Science and Technology Progress Award of Chongqing. He currently serves as the President-elect in the American Society of Civil Engineers (ASCE), Greater China section. He is also involved in the editorial boards for several SCI-indexed journals. His research mainly focuses on novel design and optimization of space and lightweight structures, and computational fluid dynamics (CFD) & fluid-structure interaction (FSI) analysis by utilization of high-performance computing and machine learning techniques. 

Dr. Arnold Wong

is an Associate Professor in the Department of Rehabilitation Sciences at The Hong Kong Polytechnic University. He worked as a Physiotherapist in the Queen Elizabeth Hospital for several years and completed his Ph.D. training from the Uni-versity of Alberta in Canada. His research interests focus on the investigation of mechanisms underlying common musculoskeletal disorders (e.g., low back pain, scoliosis, and osteoarthritis). By adopting advanced imaging, state-of-the-art bio-mechanical assessments, and epidemiological techniques, Dr. Wong has con-ducted a series of studies to investigate the prevalence, risk factors, and rehab-ilitation strategies for various musculoskeletal disorders in different populations.

Dr. Morgan Cheng

is an entrepreneur and had successfully directed two high technology companies. Morgan has profound experience in software engineering and he is currently overseeing a 100-people development team specialised in Artificial Intelligence and Blockchain.  Previously, Morgan worked as an SW architect in several Silicon Valley companies including Google and HP. Morgan has been working closely with Dr Teng Zhang on the development of the Artificial Intelligence platform for managing spine malalignment since 2017.


Dr. Sloan Kulper

is an entrepreneur and founder of Lifespans Limited, a medical device startup company that spun out of the Department of Orthopaedics and Traumatology of HKU, where Dr Sloan Kulper also completed his PhD. Sloan obtained his B.S. in Design from MIT, where he conducted protein engineering research at the Laboratory for Molecular Self-Assembly, and design research at the MIT Media Lab. He obtained his Master of Industrial Design degree from Rhode Island School of Design (RISD) and then spent five years working in product development consultancies in the USA and Asia for Fortune 500 clients and tech startups.

Postgraduate students


Mr. Xihe Kuang (Ph.D. C)

received his BEng degree in Beihang University (BUAA) in 2019. He is currently a Ph.D. student in the Department of Orthopaedics and Traumatology. His research interests includes the medical image processing and enhancement, the development of AI system for automated clinical diagnosis and pathology progression prediction.


Mr. Zeyuan Zuo (Ph.D. Student)

received his BEng degree in Shanghai Jiao Tong University (SJTU) in 2019, followed by his M.S. degree in Carnegie Mellon University (CMU) in 2021. He was awarded the Hong Kong University Presidential Scholarship upon joining AIMed lab as a Ph.D. student. With his research interests in big data and artificial intelligence, Zeyuan intends to develop techniques for user experience optimization across different health care system applications. 


Ms. Moxin Zhao (Ph.D. student)

received her BEng degree from the University of Electronic Science and Technology of China in 2017. Then, she joined the Key Laboratory of Microwave Remote Sensing, Chinese Academy of Sciences. In 2020, Moxin got her Master of Science in Engineering, and now a Ph.D. student in the Department of Orthopaedics and Traumatology, Faculty of Medicine, Hong Kong University.

Mr. Hao Wu (Ph.D. Student)

received a B.S. degree in Biochemistry and Molecular Biology from the University of California, Davis in 2018. He recently finished an MPhil degree in Bioengineering at the University of Hong Kong (HKU). He worked as a research assistant in Bruce Hammock lab at UC Davis from 2015 to 2018.  He was a Junior Specialist in the Orthopaedics lab in Sir Run Run Shaw Hospital, Zhejiang University from 2018 to 2019. His research interests include the design and improvement of Orthopedic medical devices, Biomechanics of Orthopedic implants, and effects of biomaterial on cellular response.

Research assistants and interns

Ms. Lijuan REN (full- time research assistant)


received her BMedSc degree from Chongqing Medical University in 2020, followed by her MMedSc degree in the University of Hong Kong (HKU) in 2022. Now, she is a full time research assistant in the Department of Orthopaedics and Traumatology, School of Clinical Medicine, the University of Hong Kong. 


Ms. Dorothy (Part-Time Research Assistant)


is a yoga teacher for over 15 years across Euro-Asia including India, UK, Australia, Hong Kong and China.  She received her Bachelor and Master degrees in the University of Hong Kong, specializing in physical and applied geography. Upon her return from China in late 2011, she continues to provide extensive yoga trainings and body rehabilitation treatments to her clients.  

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Medical Interns

Existing medical interns under the team from junior to senior years of the Medicine program include: Mr. Chris Cheng, Mr. Kenneth Chu, Mr. Richard Wai, Mr. Samuel To... etc.



Ms. Li P.H. Sofia

Research Assistant

Dr. Yongqiang Jin



Ms. Noel Liang

Research Assistant