PENINSULA ORTHOPAEDICS - Key Persons


Dr Alex Nicholls

Job Titles:
  • Specialist
Dr Nicholls is a specialist orthopaedic surgeon, treating all paediatric and adult knee conditions. He has particular interests in sports knee injuries, arthroscopic ligament reconstructions and management of arthritis in younger more active patients. He also performs partial and total joint replacement surgery utilising computer-assisted navigation techniques. In addition to his Australian specialist qualifications, he has worked and trained in Portland, Oregon and in Oxford, UK where he undertook higher levels of operative training in Paediatric Orthopaedics and Knee Surgery.

Dr Anna Watson

Job Titles:
  • Hand and Wrist Surgeon
  • Specialist
Dr Anna Watson is an Australian trained specialist orthopaedic surgeon with additional subspecialty training in hand and wrist conditions. Dr Watson graduated with a Bachelor of Physiotherapy from the University of Queensland in 2001. Further study was undertaken at the University of Queensland and in 2005 she completed a Bachelor of Medicine and Surgery. Her junior doctor years were undertaken in Queensland. She then moved to Sydney to join the Australian Orthopaedic Training Programme and on completion, obtained her FRACS in 2015. Dr Watson then undertook a fellowship in hand, wrist and microsurgery at Royal North Shore Hospital in Sydney. This was followed by further fellowship training at Macquarie University Hospital in Sydney. Dr Watson attained international experience with further fellowships undertaken at Chelsea and Westminster Hospital in London, Inselspital Hospital in Bern, Switzerland and Great Ormond Street Hospital in London. Dr Watson is a member of the Australian and New South Wales Hand Societies, Royal Australasian College of Surgeons and the Australian Orthopaedic Association. She has commenced practice at Northern Beaches Hospital, Sydney Hospital (locum) and St Luke's Private Hospital.

Dr Julian Yu

Dr Julian Yu is an Australian Trained Board Certified Specialist Orthopaedic Surgeon practicing in the Northern Beaches, Lower North Shore and CBD of Sydney. He has a particular expertise in managing conditions of the hip & knee including offering his patients the latest technological advances in Robotic Hip and Knee Replacement Surgery. Dr Yu's practice has a focus on robotic joint replacements of the hip and knee as well as sport knee injuries, including ligament reconstructions and arthroscopic surgery. He is further highly proficient in general trauma (Fracture) surgery affecting all extremities. As a young and modern surgeon, Dr Yu employs the latest technological advances and contemporary surgical techniques, to provide the best up-to-date management options for his patients. Having completed his medical degree at the University of Newcastle, Dr Yu completed his specialist orthopaedic training in Sydney. He obtained his specialist qualifications through the Royal Australasian College of Surgeons (RACS) and Australian Orthopaedic Association (AOA), graduating as one of the youngest in his year. Further sub-specialised fellowship training was undertaken for 2 years, locally in Sydney and internationally in the UK and France, which allowed Dr Yu to obtain a global perspective and expanded skill-set. With a polite, friendly and professional persona, Dr Yu looks forward to meeting you and assisting in any way possible. Please don't hesitate to contact our rooms at any time.

Dr Mark Hile

Job Titles:
  • Specialist
After completing a degree in Mechanical Engineering in 1984 with first class honours, Dr Hile undertook the combined medicine and surgery degree at The University of Sydney. His internship, resident medical officer posting and basic surgical training was at Royal Prince Alfred Hospital. Advanced training in Orthopaedic Surgery was with the Australian Orthopaedic Association Sydney Northside training scheme, completed in 2000. During 2001 Dr Hile was the Lincoln Centre Fellow at Royal North Shore Hospital Hand Surgery Department with Professor Michael Tonkin, and an Honorary Research Fellow at The Children's Hospital at Westmead with Professor David Little. Dr Hile has researched and published articles on fracture healing and tendon repair. He is a director of the Peninsula Orthopaedics Research Institute. Dr Hile is a specialist Hand and Wrist Surgeon with expertise in microsurgery, peripheral nerve surgery, arthroscopic procedures of the wrist, and all bone and soft tissue problems involving the hand, wrist and upper extremity. They include joint replacement and other procedures for arthritis, treatment of fractures, and tendon and ligament injuries.

Dr Matthew Sherlock

Job Titles:
  • Consultant at the NSW Academy of Sport
  • Orthopaedic Surgeon
Dr Matthew Sherlock is an Orthopaedic Surgeon with subspecialty expertise in Shoulder and Elbow Surgery. He has a particular interest in sports injuries, arthroscopic and joint replacement surgery of the shoulder. Dr Sherlock graduated in Medicine and Surgery at Sydney University and completed his Orthopaedic training in Sydney on the Australian Orthopaedic Training Programme. Following this Dr Sherlock spent eighteen months completing Fellowships in Arthroscopic and Reconstructive surgery of the Shoulder/Elbow and Knee in Canberra and as the Arthroscopy Fellow at the University of Alberta, Canada. During this period he also gained experience working with the pioneers of modern shoulder joint replacement in Nice and Lyon, France. Dr Sherlock holds appointments at the Mater Misericordae Private Hospital in Crows Nest, the Sydney Adventist Hospital (SAN) in Wahroonga and the Northern Beaches Hospital in Frenchs Forest. Dr Sherlock is currently a consultant at the NSW Academy of Sport, Narrabeen and has worked as the team doctor for the Waratah Junior Academy, Warringah and Gordon rugby clubs. Dr Sherlock has published numerous research publications and is actively involved with education of both medical students and orthopaedic trainees. He is responsible for organising the annual in-training examination for advanced trainees of the Australian Orthopaedic Association. He is also an accredited provider for continuing orthopaedic education of general practitioners.

Dr Sam Chia

Dr Chia is a fellowship trained orthopaedic surgeon with a particular interest in reconstructive surgery of the hip and knee. Dr Chia completed his medical degree at the University Of Sydney in 1999 and was awarded the Sidney B Clipsham Memorial Prize in Operative Surgery. He completed his residency at The Prince Of Wales Hospital and was then selected onto the Sydney Southside Training Scheme of the Australian Orthopaedic Association. He gained his fellowship of the Royal Australasian College of Surgeons (FRACS) in 2008 and then completed three postgraduate fellowships in hip and knee reconstruction. These were administered by Arthritis Australia, Royal Prince Alfred Hospital and Peninsula Orthopaedic Research Institute (PORI). Dr Chia is committed to maintaining his knowledge at the highest levels and is certified to perform robotic hip and knee surgery. Dr Chia also has a keen interest in research, with multiple publications in major orthopaedic journals and is a current director of PORI. He also enjoys participating in medical education and has an appointment as a Clinical Lecturer at the University of Sydney. Dr Chia was previously the intern supervisor at Mona Vale Hospital and is heavily involved in registrar teaching at various levels. Dr Chia is able to provide a service to all residents of the Northern Beaches through participation in the on-call roster and elective lists at Northern Beaches Hospital as well as appointments to various private hospitals in the area. In his spare time, Dr Chia can be spotted pursuing his young family around local parks and beaches. Once a keen cricketer and rugby player, he now enjoys being an armchair critic of most team sports and is often seen to look longingly at the travel section of the Sydney Morning Herald.

Dr Tristan Rappo

Job Titles:
  • Orthopaedic Surgeon
Dr Tristan Rappo is a fellowship trained Orthopaedic Surgeon based in Sydney. He has subspecialty interests in hip and knee arthroplasty and sports knee injuries. Dr Rappo graduated medicine (MBBS) from the University of Sydney. He gained his fellowship of the Royal Australasian College of Surgeons (FRACS) in 2019 and then completed a postgraduate fellowship in hip and knee reconstruction with the Peninsula Orthopaedic Research Institute. Dr Rappo has a special interest in robotic hip and knee replacement. Dr Rappo also provides trauma services through on call duties at the Northern Beaches Hospital.