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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. 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.

Dr. Ignacio Fernández Zamora

Clinical Fellow

Chile

2024

Dr Ignacio Fernández Zamora obtained his MD degree from Universidad Andrés Bello (Chile) from March 2007 to December 2013. He completed his orthopaedic training at the same University (Chile) from May 2018 to April 2021 at “Instituto de Salud del Trabajador”, in Viña del Mar. He has been working in the same hospital where he completed his orthopaedic training, in addition to a Sports Medicine Center, since May 2021.

Currently, he is a fellow in Knee Surgery at Sydney Orthopaedics Research Institute, working in research regarding high tibial osteotomy and the conversion to a total knee arthroplasty, as well as studies regarding ACL surgery.

Dr. Giacomo Dal Fabbro

Clinical Fellow

Bologna, Italy

2024

Dr. Giacomo Dal Fabbro obtained his MD degree from University of Bologna (Bologna, Italy) in 2017. He did his Orthopaedics Residency Program and Training from 2018 to 2023 at the Rizzoli Orthopaedics Institute (Bologna, Italy) and University of Bologna (Bologna, Italy) with a thesis on knee osteotomy and joint preserving surgery for the treatment of knee osteoarthritis, under the supervision of Prof. S. Zaffagnini.

He then worked as Orthopaedic Surgeon at the Rizzoli Orthopaedics Institute (Bologna, Italy) up to July 2024. He is currently PhD candidate in Surgical Science and Innovative Technologies at University of Bologna (Bologna, Italy) and Clinical Fellow in Knee Surgery at the Sydney Orthopaedics Research Institute (St. Leonards, Sydney, NSW, Australia).

He has had extensive involvement in research projects at Rizzoli Orthopaedics Institute and Sydney Orthopaedics Research Institute, with more than 30 research articles published in indexed journals.

Dr. Fabio Mancino

Clinical Fellow

Rome, Italy

2024

Dr Fabio Mancino obtained his MD degree from Università Cattolica del Sacro Cuore (Rome, Italy) in 2015. He did his orthopaedic training at Fondazione Policlinico Universitario A. Gemelli IRCCS (Rome, Italy) from 2016 to 2021 with a thesis on robotic knee arthroplasty.

During his training, he visited centres of excellence on hip and knee surgery in Italy and the US. He did his first Fellowship in Hip and Knee arthroplasty at the Fiona Stanley Hospital and Fremantle Hospital (Perth, Western Australia) from Feb 2022 to Jan 2023 under the supervision of Mr. C. Jones and Prof. P. Yates.

He then did a second fellowship on Hip and Knee arthroplasty at the University College Hospitals of London from Feb 2023 to Jan 2024 under the supervision of Prof. F.S. Haddad, focusing on robotic surgery.

He is now a current fellow in Knee Surgery at the Sydney Orthopaedics Research Institute.

He has had extensive involvement in research projects at the Hospital for Special Surgery, Fondazione Policlinico Universitario A. Gemelli, Fondazione Poliambulanza, Orthopaedic Research Foundation of WA, UCLH Foundation Trust, and Sydney Orthopaedic Research Institute, with more than 40 research articles published in high impact indexed journals.

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Our Past Fellows

Dr Pradyumna Raval 
Country: United Kingdom
Clinical Fellowship: August 2023 - July 2024

Dr Simon Walgrave
Country: Belgium 
Clinical Fellowship: July 2023 - June 2024

Dr George Jacob
Country: India
Clinical Fellowship: February 2023 - January 2024

Dr Cristián Brito Ayet
Country: Chile
Clinical Fellowship: August 2022 - August 2023

Dr Sarah Bolton
Country: United Kingdom
Clinical Fellowship: July 2022 -  June 2023

Dr Jonathan Warnock
Country: United Kingdom
Clinical Fellowship: August 2021 - July 2022

Dr Ravi Teja Rudraraju
Country: India
Clinical Fellowship: July 2021 - Apr 2022

Dr Johanna Elliott
Country: Germany
Clinical Fellowship: July 2020 - June 2021

Dr Jobe Shatrov
Country: Australia
Clinical Fellowship: Feb 2021 - Apr 2021

Dr George Awwad
Country: Australia
Clinical Fellowship: Feb 2021 - Aug 2021

Dr Claire Bolton
Country: Australia
Clinical Fellowship: Feb 2020 - Jan 2021

Dr Anna Kropelnicki
Country: United Kingdom
Clinical Fellowship: Jan 2020 - Dec 2020

Dr Darshan Angadi
Country: United Kingdom
Clinical Fellowship: Jun 2019 - Apr 2020

Dr Takeshi Oshima
Country: Japan
Research Fellowship: April 2018 to March 2020

Dr Vikram Kandhari
Country: India
Fellowship:January 2019 to December 2019

Dr Sven Putnis
Country: Australia/England
Fellowship: January 2018 to July 2019

Dr Antonio Klasan
Country: Germany/Croatia
Fellowship: June 2018 to May 2019

Dr Murilo Leie
Country: Brazil
Fellowship: January to December 2018

Dr Thomas Neri
Country: France
Fellowship: November 2017 to October 2018

Dr Pavan Chebbi
Country: India
Fellowship: June 2017 to June 2018

Dr Francisco Figueroa Berrios
Country: Chile
Fellowship: January 2017 to December 2017

Dr Dinesh Choudary
Country: India
Fellowship: January 2017 to December 2017

Fairuz Suhaimi
Country: Malaysia
Fellowship: June 2016 to May 2017

Bertrand Semay
Research Fellowship
Country: France
Fellowship: May 2016 to April 2017

Martin Di Nallo
Country: Argentina
Fellowship: January 2016 to July 2016

Sherif El-Tawil
Country: United Kingdom
Fellowship: November 2015 to April 2016

Gianmarco Regazzola
Country: Italy
Fellowship: August 2015 to July 2016

Kunal Dhurve
Country: India
Fellowship: November 2014 to October 2015

Lai Kah Weng
Country: Singapore 
Fellowship: April 2014 to Sept 2014

Vikram Mhaskar
Country: India
Fellowship: August 2014 to July 2015

Aseem Shaikh
Country: India
Fellowship: February 2014 to July 2014

Gavin Macpherson
Country: United Kingdom
Fellowship: Nov 2013 to Nov 2014

Paul Villard
Research Fellowship
Country: France
Fellowship: October 2013 to April 2014

Saija Sinimäki
Research Fellowship
Country: Finland
Fellowship: Jan 2013 to July 2013

Ziad Dahabreh
Country: United Kingdom
Fellowship: Nov 2012 to Nov 2013

Sebastien Lustig
Research Fellowship
Country: France
Fellowship: Oct 2011 to Oct 2012

Jean-Christian Balestro
Country: France
Fellowship: Oct 2011 to Oct 2012

Anthony Joseph Costa
Country: Canada
Fellowship: Aug 2011 to Aug 2012

Sam Oussidik
Country: United Kingdom
Fellowship: Oct 2010 to Oct 2011

Benjamin Widmer
Country: United States of America
Fellowship: January 2011 to July 2011

Vera Kinzel
Country: Australia
Fellowship: Jan 2010 to June 2010

Sean Leo
Country: Singapore
Fellowship: Oct 2009 to Oct 2010

Curtis Hanson
Country: United States of America
Fellowship: Feb 2009 to July 2009

Sandeep Biswal
Country: India
Fellowship: Aug 2008 to Jan 2009

Matthew DeWall
Country: United States of America
Fellowship: Aug 2007 to July 2008

Guillaume Demey
Country: France
Fellowship: Dec 2007 to March 2008

Sandeep Patel
Country: New Zealand
Fellowship: Feb 2007 to July 2007

Arthur Galea
Country: United Kingdom
Fellowship: Sept 2006 to Dec 2006

Elvire Servien
Country: France
Fellowship: April 2006 to June 2006

Darius Viskontas
Country: Canada
Fellowship: Jan 2006 to July 2006

David Graham
Country: United Kingdom
Fellowship: Aug 2004 to Feb 2005

Naven Duggal
Country: Canada
Fellowship: Sept 2003 to July 2004

Kris Rajaratnam
Country: Canada
Fellowship: January 2003 to June 2003

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