Dr. Simon Kelley

Simon Kelley

MBChB, PhD, FRCS (Tr and Orth)

Associate Professor, Division of Orthopaedic Surgery
Department of Surgery, University of Toronto

Deputy Editor - Journal of Pediatric Orthopaedics
Executive - Canadian Orthopaedic Research Society


(416) 813-1233


(416) 813-6414

Affiliated Hospital(s)

Hospital for Sick Children

Practice Location

Ashley Hughes


Dr Kelley received his undergraduate medical degree from the University of Birmingham,UK in 1997. He undertook his basic surgical training in Leeds, UK then moved to Bristol in South West, UK to join the higher surgical residency training scheme in trauma and orthopaedics. It was there that he developed a passion for children’s orthopaedics, and in particular limb lengthening, deformity correction and hip surgery. Dr Kelley pursued these areas of clinical interest in a series of fellowships. He undertook the limb reconstruction fellowship at the Royal Children’s Hospital in Melbourne, Australia in 2008 followed by being awarded the first Trans-Canada paediatric orthopaedic fellowship in 2008-2009 at the Hospital for Sick Children, Toronto; Shriner’s Hospital for Children, Montreal and BC Children’s Hospital, Vancouver. Simon was selected as the British Orthopaedic Association Young Ambassador in 2008.

Dr. Kelley has won awards for clinical excellence, teaching and research, has presented his research at national and international meetings in North America, Europe and Asia, furthermore he has published over 40 research papers on a wide range of topics and has written 13 book chapters. Dr. Kelley also pioneered 3 large educational website projects, developing a unique core regional educational website for orthopaedic trainees in Bristol, UK and a large national educational website project named ArgO for orthopaedic trainees across the UK, and the SickKids Fellowship Website.

PhD - Developmental and Stem Cell Biology, University of Toronto 2016
Founder's Medal - Canadian Orthopaedic Research Society 2015
Laidlaw Award - Institute of Medical Science - University of Toronto 2014
McMurrich Award - Gallie Day - University of Toronto 2014
British Orthopaedic Association Young Ambassador 2008
Trans-Canada Paediatric Orthopaedic Fellow 2008-2009
Limb Reconstruction Fellow, Melbourne, Australia 2008
Sir Walter Mercer Gold Medal - FRCS (Tr and Orth) examination 2007

Google Scholar Publications and Citations at https://bit.ly/2DvPaM2

Areas of Specialty and Research Interests

Paediatric Limb Lengthening and Reconstruction
I specialise in the comprehensive management of limb deformities and limb length discrepancies, which includes a large population of congenital limb deficiencies, post-traumatic deformity and other developmental conditions such as Blount’s disease. My surgical expertise includes complex joint reconstruction procedures and the use of external and internal fixation devices such as hexapod fixators, monolateral rails and intramedullary lengthening devices.

Patient resources at www.leglengthening.ca

Paediatric Hip Surgery
I also specialise in hip surgery, with a particular focus on DDH. I lead the baby hip clinic for the diagnosis and non-operative management of neonatal DDH and perform the range of closed and open reduction surgeries appropriate to late presenting hip dysplasia. I also perform joint preservation surgeries in adolescent hip conditions and have set up the adolescent hip arthroplasty program with Dr Oleg Safir.


Developmental Dysplasia of the Hip
My clinical research program aims to systematically optimize many of the controversial steps of diagnosis, imaging, treatment and education of DDH in newborns, such that the resulting body of work will provide easy to follow, effective and safe evidence-based management pathways which will help standardise the education and management of DDH globally, disseminated through our clinical fellowships, peer-reviewed publications and international presentations. I am a member of the Medical Advisory Board of the International Hip Dysplasia Institute, a collaborative multi centre research group.

Biology of Fracture Healing
I am a collaborator in a musculoskeletal lab headed by Dr Peter Kannu, Clinical Genetics and Associate Scientist in the Developmental and Stem Cell Biology program. The focus of the lab is to investigate fracture healing in mouse models of genetic bone diseases to discover new therapeutic strategies to enhance bone repair.