MQ Health - Macquarie University

Our Team

Associate Professor Sumit Raniga

BSc MSc (1st Hons) MBChB FRACS FAOrthA
Orthopaedic Shoulder and Elbow Specialist
Senior Lecturer

Associate Professor Sumit Raniga is a Fellow of the Royal Australasian College of Surgeons and a subspecialist orthopaedic shoulder and elbow surgeon with three years of dedicated post-fellowship training in world-renowned centres of excellence. Associate Professor Raniga provides the highest standard of contemporary care for complex shoulder and elbow problems. He specialises in shoulder and elbow reconstruction, arthroscopy (keyhole surgery) and arthroplasty (joint replacement surgery).

With a background in molecular medicine, including gene therapy, as well as orthopaedic surgical sciences, including biomechanics Associate Professor Raniga has a proven track record in cutting edge research with numerous publications in international peer-reviewed journals. He is involved in developing and implementing a world-class centre of excellence in shoulder and elbow research, that not only produces science that influences surgical practice but also trains the academic surgeons of tomorrow.

Swiss Experience

Associate Professor Raniga is the first fellow of the Royal Australasian College of Surgeons to complete a one-year fellowship in shoulder and elbow surgery at the prestigious Bern University Hospital. He was mentored by Professor Matthias Zumstein, who is widely regarded as one of the best shoulder and elbow surgeons in Europe.

He had the privilege to receive intense training in arthroscopic and open reconstruction of the shoulder and elbow, as well as joint replacement surgery. He learnt the Latarjet shoulder reconstruction technique - which has the best results in treating an unstable shoulder in contact and/or collision athletes. He was also involved in developing a novel technique to reconstruct the acromioclavicular joint (ACJ). During his time in Bern, he became the first fellow of the Royal Australasian College of Surgeons to be awarded the prestigious Charles S. Neer Award by the American Shoulder and Elbow Society in 2016. This is the highest honour in shoulder surgery research in the world.

Australian Experience

Associate Professor Raniga’s second year of sub-specialisation was at the Macquarie University Hospital with preeminent shoulder surgeon Professor Desmond Bokor. Professor Bokor has earned a worldwide reputation in the management of shoulder instability in rugby players. Associate Professor Raniga had the opportunity to gain greater insight and surgical expertise in the management of unstable shoulders, as well as further experience in arthroscopic and joint replacement surgery. He also carried out cutting edge biomechanical research which is in the process of publication in international peer-reviewed journals.

His time at Macquarie University Hospital allowed him to gain a better understanding of the prevalence of particular shoulder and elbow problems in our community. He recognised the need to bring back advanced reconstruction techniques for high demand patients with unrepairable rotator cuff tears that are too young to undergo shoulder replacement surgery, as well as further expertise in the diagnosis, management and surgical treatment elbow problems.

Canadian Experience

The Roth MacFarlane Hand and Upper Limb Center (HULC) is a truly unique facility with a worldwide reputation as one of the best institutions of its kind. The HULC is a world-renowned centre of excellence in education, research, and the treatment of patients with complex conditions affecting hands, wrists, elbows and shoulders. It is a tertiary referral centre where patients are sent for expert management of their complex upper limb problems.

Associate Professor Raniga had the privilege to work with Professor Graham King, who is regarded as one of the preeminent elbow surgeons in the world. His time with Professor King allowed him to focus on open and arthroscopic reconstruction of the elbow, as well as elbow replacement surgery.

He also worked with Professor George Athwal. Dr Athwal has earned the reputation of being one of the best shoulder surgeons in North America. Dr Raniga focussed on learning novel joint preserving surgery for the treatment of high demand patients with unrepairable rotator cuff tears. He also gained further experience in arthroscopic and open surgery, as well as more complex shoulder replacement surgery.

During his time at the HULC Dr Raniga co-authored a book chapter in the upcoming edition of “Rockwood and Greens Fractures in Adults”. This is in one of the most reputable textbooks in Orthopaedic Surgery. He also completed further biomechanical research that is may have a significant influence on shoulder replacement surgery and prosthesis design.

Career Before Medicine

Before studying medicine, Associate Professor Raniga had a career in medical research. He completed a Bachelor of Science, followed by a Master’s in Medical Science with 1st Class Honours from the University of Auckland majoring in molecular medicine and neuropharmacology. He then spent a year at the Thomas Jefferson Medical College in Philadelphia, USA and was part of the team that developed the first-ever gene therapy clinical trial for Parkinson’s Disease. This inspired him to study medicine.

He studied medicine at the University of Otago with an aim to become a surgeon-scientist. Associate Professor Raniga believes that interdisciplinary collaboration between dedicated surgeon scientists and basic scientists is the key to top-quality research that evolves the surgical practice. He has been part of such collaborations during his overseas fellowships. This has not only allowed him to learn cutting edge surgical solutions for difficult clinical problems but also provided him with skills to contribute to society through research and education.

Fellowships, Awards and Publications

Clinical and Research Fellowships

  • Roth McFarlane Upper Extremity Surgery Fellowship with Prof. Graham King and Prof. George Athwal, Roth McFarlane Hand and Upper Limb Centre, University of Western Ontario, London, Ontario(August 2017 – August 2018)
  • Shoulder Fellowship with Prof. Des Boker, Macquarie University Hospital, Sydney, NSW, Australia(July 2016 – July 2017)
  • Shoulder, Elbow and Complex Upper Limb Trauma Fellowship with Prof. Matthias Zumstein, Bern University Hospital, Bern, Switzerland(June 2015 – June 2016)


  • EFORT Foundation European Traveling Fellowship. European Federation of National Association of Orthopaedics and Traumatology. (2018)
  • Roth McFarlane Upper Extremity Surgery Scholarship. Roth McFarlane Hand and Upper Limb Center, University of Western Ontario, London, Ontario, Canada. (2017)
  • Charles S. Neer Award 2016 for Best Research in Shoulder Surgery. American Shoulder and Elbow Society. (2016)
  • Bern University Hospital Research Scholarship, University of Bern, Department of Orthopaedics and Traumatology, Bern, Switzerland. (2015)
  • Deans Commendation for Trainee Internship, University of Otago, Faculty of Medicine. (2006)
  • Trainee Internship Distinction Viva Invitee for Medicine, Surgery, Psychological Medicine, General Practice and Obstetrics & Gynaecology. (2006)
  • Deans Commendation for 4th & 5th year Medicine, University of Otago, Faculty of Medicine. (2005)
  • He Oranga Pounamu Maori Health Prize, University of Otago, Christchurch School of Medicine and Health Sciences. (2005)
  • Medical Council of New Zealand Research Scholarship for a research project entitled - Attitudes of doctors towards mandatory reporting of deficient practice. (2003/04)
  • Deans Commendation for 2nd year Medicine, University of Otago, Faculty of Medicine. (2002)
  • National Heart Foundation Scholarship for a research project entitled - BNP and Heart Failure. (2002/03)
  • NeuroNZ (Ltd) Research Scholarship for a research project entitled -Differential Regulation of Activin Type I and Type II Receptor mRNAs Following Various Brain Injuries in the Rat. (2000/01)


  • Distal Humerus Fractures. Athwal GSA & Raniga S. Rockwood and Green’s Fractures in Adults 9th Edition; Chapter 39. Chapter Accepted and In Print.
  • The Walch B2 Humerus: Glenoid Retroversion is Associated with Torsional Differences in the Humerus. Raniga S, Knowles NK, Ferreira LF, Athwal GS. Manuscript accepted by JSES.
    • Podium Presentation at The 31st Annual Congress of the International Society for Technology in Arthroplasty. London, UK (International) (2018)
    • Podium Presentation at the Sydney Arthroplasty Masters Meeting, Sydney, NSW, Australia (2018)
    • Podium Presentation at the Shoulder and Elbow Society of Australia Biennial Conference, Perth, Western Australia, Australia (2018)
    • Poster Presentation at the AAOS Annual Meeting, Las Vegas, USA (2019)
  • The Axillary Nerve in Humeral Avulsion of the Glenohumeral Ligament (HAGL): MRI and Clinical Study. Bokor D, Raniga S and Graham P. Manuscript Accepted for Publication in the OJSM.
    • Podium Presentation at the Shoulder and Elbow Society of Australia Biennial Conference, Perth, Western Australia, Australia (2018)
  • Long-term Results of Coracoclavicular Screw Fixation of Neer Type II Distal Clavicle Fractures. Michael O Schaer, Daniela Voelkle, Matthias A Zumstein, Sumit Raniga, Oliver Mini, Richard W Nyffeler. Manuscript Submitted to JOT.
  • Extraarticular Glenoid Neck Fractures; Operate or not to operate. Kejriwal R, Tegtmeier K, Raniga S, Ball C, Mohammed K, Hong T. Manuscript Submitted to JBJS (Am).
  • Many Shoulder MRI Findings in Elite Professional Throwing Athletes Resolve After Retirement: A Clinical and Radiographic Study. Schär MODellenbach SPfirrmann CW, Raniga S, Jost BZumstein MA. Clin Orthop Relat Res. 2018 Mar;476(3):620-631.
  • New Quantitative Radiographic Parameters for Vertical and Horizontal Instability in Acromioclavicular Joint Dislocations. Zumstein MA, Schiessl P, Ambuehl B, Bolliger L, Weihs J, Maurer MH, Moor BK, Schaer M, Raniga S. Knee Surg Sports Traumatol Arthrosc. 2018 Jan;26(1):125-135.
  • Triceps Sparing Extra-Articular Step-Cut Olecranon Osteotomy (SCOOT) for Distal Humerus Fractures: An Anatomic Study. Zumstein MA, Raniga S, Flueckiger R, Campana L, Moor BK. J Shoulder Elbow Surg 2017 Sep;26(9):1620-1628.
  • Neer Award 2016: Reduced Muscle Degeneration and Decreased Fatty Infiltration after Rotator Cuff Tear in a Poly (ADP-ribose) Polymerase 1 (PARP-1) Knock- Out Mouse Model. Kuenzler MB, Nuss K, Karol A, Schär MO, Hottiger M, Raniga S, Kenkel D, von Rechenberg B, Zumstein MA.J Shoulder Elbow Surg. 2017 May;26(5):733-744.
    • Awarded the Charles S. Neer Award for Best Basic Science Research 2016.
    • Presented at American Shoulder and Elbow Society (2016)
    • Presented at the European Shoulder and Elbow Society (2016)
  • The Biology of Rotator Cuff Healing. Zumstein MA, Lädermann A, Raniga S, Schär MO. Orthop Traumatol Surg Res. 2017 Feb;103(1S): S1-S10.
  • Optimal Lateral Row Anchor Positioning in Posterior-SuperiorTransosseous Equivalent Rotator Cuff Repair: A Micro CT Study. Zumstein MA, Raniga S, Labrinidis A, Eng K, Bain GI, Moor BK. Orthop J Sports Med. 2016 Nov 22;4(11).
  • BiPOD Arthroscopic Acromiclavicular Repair Restores Bi-Directional Stability. De Beer J, Schaer M, Latendresse K, Raniga S, Moor BK, Zumstein MA. Orthopedics. 2017 Jan 1;40(1).
  • The Role of Capsular Repair in Latarjet Procedures. Zumstein MA, Raniga S. J Bone Joint Surg Am. 2016 Sep 7;98(17).
  • Glenohumerale Luxation - Verletzungsmuster und Kombinationsverletzungen. R. Flückiger, S. Raniga, B. K. Moor, M. A. Zumstein. Arthroskopie 2015/4:  292-300. DOI: 10.1007/s00142-015-0039-9.
  • The Critical Shoulder Angle - Radiographic Signs of Degenerative Rotator Cuff Tears and it’s Biomechanical Rationale. Matthias A. Zumstein, Sumit Raniga, and Beat K. Moor. Instructional Course Lecture - European Shoulder and Elbow Society Meeting 2015.
  • Occult Infection in Aseptic Joint Loosening and the Diagnostic Role of Implant Sonication. Kempthorne J, Ailabouni R, Raniga S, Hammer D, Hooper G. Biomed Res Int. 2015;2015:946215. DOI: 10.1155/2015/946215. Epub 2015 Oct 25.
  • Kinematic analysis of scapulohumeral Motion and a Preliminary study of shoulder proprioception. Raniga S, Mohammed KD, Dalzell KGB. Presented at the New Zealand Shoulder and Elbow Society 2013.
  • The Time Out Procedure: have we changed our practice? Alex J-J Lee, Sumit Raniga, Gary Hooper, Ali Perry, Robyn Bisset, Diane Darley, Carmel Hurley-Watts. New Zealand Medical Journal. Vol 125 No 1362. Sep 2012.
  • Folic Acid Supplementation and Colorectal Cancer Risk;
    A Meta-analysis. Fife J, Raniga S, Hider PN, Frizelle FA. Colorectal Dis. 2011 Feb;13(2):132-7.
  • Patterns of Recurrence in Patients with Acute Diverticulitis. Eglinton T, Nguyen T, Raniga S, Dixon L, Dobbs B, Frizelle FA. Br J Surg. 2010 Jun;97(6):952-7.
  • Sacrococcygeal Pilonidal Disease. Lee PJ, Raniga S, Watson A, Frizelle FA. Colorectal Dis. 2008 Sep;10(7):639-50;discussion 651-2.
  • The Impact of Obesity on Outcome after Major Colorectal Surgery. Gendall KA, Raniga S, Kennedy R, Frizelle FA. Dis Colon Rectum. 2007 Dec;50(12):2223-37.
  • A Randomised Controlled Trial Comparing the Efficacy and Acceptability of Phospo-Soda Buffered Saline (Fleet®) with Sodium Picosulphate/Magnesium Citrate (Picoprep®) in the Preparation of Patients for Colonoscopy. Colorectal Dis. 2008 Jun;10(5):503-5.
  • Attitudes of Hospital Medical Practitioners to the Mandatory Reporting of Professional Misconduct. Raniga S, Hider P, Spriggs D, Ardagh M. N Z Med J. 2005 Dec 16;118(1227): U1781.
  • A Quiet Revolution; Gene Therapy for Parkinson disease. Raniga S. Pharmaceutical and Diagnostic Innovation. 2004. 2 (1).
  • Methods of Providing Neuroprotection and/or Neurorestoration via the Neural Activin Type IIB Receptor.  Hughes PE, Raniga S, Fernandez JAC. The United States Patent Application Publication. Pub No.: US 2003/0103959 A1, Pub. Date: June 5, 2003.
  • Differential Regulation of Activin Type I and Type II Receptor mRNAs following Various Brain Injuries in the Rat. Raniga S. Thesis - Master of Science in Medical Science with 1st Class Honours. 2000.

Professor Des Bokor

Professor Des Bokor is a pre-eminent shoulder specialist, with an international reputation for shoulder surgery and research, who has extensive experience in the evaluation and treatment of shoulder disorders. He has performed more than 10,000 shoulder operations and has the skills and experience to provide the highest level of care.

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Dr Andrew Hirschhorn

Clinical Director, Physiotherapy Bachelor of Applied Science – Physiotherapy (Honours), PhD; Member of the Australian Physiotherapy Association

Andrew has 20 years’ experience as a physiotherapist, including more than 15 years in senior clinical and management roles in private and public hospitals. Andrew undertook his PhD at Griffith University, where he investigated physiotherapy and exercise prescription following coronary artery bypass graft surgery. His postdoctoral translational research fellowship with the National Health and Medical Research Council explored strategies to improve the uptake of healthcare services by men with prostate cancer. Andrew has a special interest in perioperative physiotherapy, including the prehabilitation and education of patients requiring major orthopaedic, spinal, cardiothoracic and general surgery.

Alexander Bloomfield

Bachelor of Physiotherapy Member of the Australian Physiotherapy Association

Alex undertook his physiotherapy degree at the Australian Catholic University, graduating in 2014. Before joining MQ Health Physiotherapy in 2017 he worked at Wagga Wagga Base and Hornsby Ku-Ring-Gai Hospitals within the New South Wales public health system. Alex has gained sports physiotherapy experience in Schoolboy Rugby, Australian Rules Football and currently holds the position of Physiotherapist for Sydney Cricket Club in the NSW Premier Cricket Competition. Alex has a special interest and extensive experience in physiotherapy management of shoulder and elbow dysfunction including rotator cuff injury, shoulder instability, post surgical rehabilitation and adhesive capsulitis. He works closely with Shoulder and Elbow Specialists Professor Desmond Bokor and Associate Professor Sumit Raniga in the MQ Health Shoulder and Elbow Clinic.

Chris Wynne

Lead Physiotherapist, Outpatient Services Bachelor of Applied Science – Exercise and Sports Science, Master of Physiotherapy, Graduate Certificate of Sports Physiotherapy

Chris has 10 years’ postgraduate experience as a physiotherapist, predominantly in the private outpatient sector. For the past four years, Chris has been the head physiotherapist for the GWS Giants (AFL) Academy Program, and he is currently completing his Master of Sports Physiotherapy through La Trobe University.

Chris enjoys working collaboratively with orthopaedic specialists, sports physicians and general practitioners to care for patients with a broad range of orthopaedic, musculoskeletal, sports conditions and injuries. He has a special interest in helping people return to activity following orthopaedic surgery, the physiotherapy management of concussion and the management of acute and chronic spinal and lower limb conditions. In addition to his clinical work, Chris also teaches musculoskeletal physiotherapy to students of Macquarie’s Doctor of a Physiotherapy program.