Our Current Fellows
The SORI fellowship program is a key component of our clinical and research initiatives. We host up to three clinical research fellows and one research fellow at any given time, along with additional observerships, all from diverse backgrounds across the globe. These fellows gain invaluable skills and experience during their time at SORI, contributing to research advancements through publications and presentations. The knowledge they acquire strengthens orthopaedic practices in their home countries, enabling them to bring back innovative ideas and improved techniques that benefit their communities.

Dr. Shradha Kulkarni
Clinical Fellow
Bombay, India
2025
Dr Shradha Kulkarni has trained extensively with prominent Orthopaedic surgeons in Bombay during her tenure as a resident in Bombay hospital and later on working as a Registrar in the city of Mumbai, India. She has also worked as a fellow under Prof Dr Hetal Chiniwala, a prominent arthroscopic surgeon in Mumbai. She has always been inclined towards improving patient care and protocols for treatment in India by learning from renowned surgeons and honing her skills. She has presented in various national and international orthopaedic conferences and won awards for her presentations. She aims to refine her skills in research and knee surgery during her tenure with us and hopes to implement them in India upon her return.

Dr. Dhruva Angachekar
Clinical Fellow
Mumbai, India
2025
Dr. Dhruva Angachekar from Mumbai, India, completed his MBBS training at Kashibai Navale Medical College, Pune (2012–2018), followed by his Orthopaedic Residency at Datta Meghe Institute of Medical Sciences, Wardha, from 2018 to 2021, where he earned his MS degree in Orthopaedics. He was subsequently awarded the DNB Orthopaedics degree by the National Board of Examinations, India, in 2022. He then pursued arthroplasty and arthroscopy fellowships under eminent surgeons in Mumbai, further honed his skills with advanced arthroplasty fellowships in Hungary, and completed the SICOT meets SICOT Fellowship in Arthroplasty under Prof. Dr. Carsten Perka at Charité Hospital, Berlin, Germany.
He is currently a Clinical Fellow at the Sydney Orthopaedic Research Institute, where he is training in advanced knee surgery protocols under some of the most recognised knee surgeons in the world. His field of interest lies in knee preservation surgeries and knee sports injuries , and he aspires to collaborate with his mentors to publish research in these areas. By the end of his tenure at Sydney, he aims to achieve strong clinical, surgical, and academic expertise to further his career and contribute to advancing orthopaedic care.

Dr. Mustafa Saffi
Clinical Fellow
Auckland, New Zealand
2025
Dr Mustafa Saffi is a New Zealand trained Orthopaedic Surgeon. He has gained extensive experience through specialist fellowships at the Sydney Shoulder Research Institute, the Fowler Kennedy Sports Medicine Clinic, and the Hand and Upper Limb Centre in London, Canada. Dr. Mustafa is dedicated to providing the highest standard of care for his patients and has a strong interest in advancing orthopaedic research to improve outcomes for the community.

Dr. Karthik Pradyumna
Clinical Fellow
Bangalore, India
2025
Dr. Karthik Pradyumna obtained his MBBS from SV Medical College, India, before completing his orthopaedic training at MS Ramaiah Medical College and Bangalore Medical College between 2018 and 2022.
Following his training, he pursued specialised fellowships in knee surgery, completing a Knee Replacement Fellowship at Apollo Hospitals, Bangalore, and a Knee Arthroscopy Fellowship at PD Hinduja Hospital, Mumbai, where he gained extensive experience in joint preservation and reconstruction.
His clinical interests include robotic-assisted joint replacement, complex primary and revision arthroplasty, and sports knee injuries. His commitment to continuous learning was recognised by the AO Foundation, which identified him as an exceptional performer at the AO Davos Courses 2024.
Currently, Dr. Karthik is a Fellow in Knee Surgery at the Sydney Orthopaedic Research Institute (SORI), where he is actively engaged in clinical research on ACL injuries and total knee replacements.
He is passionate about learning from leading experts in the field, refining his expertise in knee surgery, and contributing to research that enhances patient care and outcomes.

Dr. Takaaki Hiranaka
Research Fellow
Okayama, Japan
2024
Dr. Takaaki Hiranaka obtained his MD degree from Okayama University (Okayama, Japan) in 2014 and earned his PhD in 2021 from the Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences at Okayama University. He has gained experience at prestigious institutions, including the Fowler Kennedy Sport Medicine Clinic (London, Canada), where he served as a combined clinical and research fellow.
Currently, Dr. Hiranaka is a research fellow at the Sydney Orthopaedic Research Institute (SORI), specializing in patient-specific knee joint preservation surgeries. He has authored 20 research articles as the first author, published in high-impact international journals, addressing topics such as meniscus repair, ACL reconstruction, knee osteotomy, and knee arthroplasty.
Dr. Hiranaka has been recognized with prestigious awards, including the Uehara Memorial Foundation Research Fellowship and the Japan Society for the Promotion of Science (JSPS) Overseas Research Fellowship, highlighting his significant contributions to orthopedic research.

