Dr Alexander Nicholls



BMedSc(Hons) MBBS MSc(Oxon) FRACS FAOrthA


Orthopaedics - Knee

Areas of Interests

Paediatric Knee Conditions

  • Sports Knee Injuries 
  • Anterior cruciate ligament injuries
  • Patella Instability
  • Discoid meniscus
  • Meniscal injury
  • Osteochondritis dissecans (OCD)
  • Fractures around the knee
  • Growth deformities

Adult Knee Conditions

  • Sports knee injuries
  • Anterior cruciate ligament injuries
  • Meniscal injury
  • Early stage osteoarthritis
  • Advanced stage osteoarthritis
  • Problematic knees after previous arthroplasty


North Shore Knee Clinic - Level 1, 445 Victoria Road, Chatswood NSW 2067


02 8045 5640






Other practice locations

North Shore Knee Clinic, Level 1, The Gallery, 445 Victoria Rd, Chatwood NSW 2067


Mater Hospital Manly Hospital The Children’s Hospital at Westmead


Dr Nicholls is a dedicated specialist knee 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. 

During surgical training in Sydney, Dr Nicholls worked regularly at major teaching hospitals including Royal North Shore Hospital, Royal Prince Alfred Hospital, The Mater Hospital and The Children's Hospital. In addition to his Australian specialty training, he has also worked and trained in the United States of America (Shriners Hospital for Children, Portland Oregon) and the United Kingdom (Nuffield Orthopaedic Centre, Oxford) where he undertook higher levels of operative training in Paediatric Orthopaedics, Arthroplasty, & Sports Knee Surgery.

Throughout his career, he has worked regularly with athletes across a wide variety of sports. This has involved working as club doctor in several major rugby teams, including the Australian Womens’ Rugby Sevens team. 

In 2008, Dr Nicholls received The Lord Nuffield Scholarship and travelled to the UK for research in the field of Orthopaedic Surgery. His subsequent clinical research in the field of osteoarthritis led to him being awarded a Masters of Science from the University of Oxford, UK.