aDepartment of Rheumatology, Institute of Bone and Joint Research, Kolling Institute, Royal North Shore Hospital and Northern Clinical School, University of Sydney, Sydney, Australia
bCentre for Health, Exercise and Sports Medicine, Department of Physiotherapy, University of Melbourne, Melbourne, Australia
cDepartment of Endocrinology, Kolling Institute, University of Sydney, Sydney, Australia
dDiscipline of Physiotherapy, Faculty of Medicine and Health, University of Sydney, The Northern Sydney Local Health District, Kolling Institute, Sydney, Australia
eDepartment of Physical Therapy and Human Movement Sciences, Feinberg School of Medicine, Northwestern University, Chicago, USA
fDepartment of Orthopaedic Surgery, Washington University, St. Louis, Missouri, USA
gShriners Hospitals for Children, St Louis, MO, USA
hDiscipline of Anatomy and Histology, Brain Mind Centre, Faculty of Medicine and Health, University of Sydney, Sydney, Australia
iSchool of Health and Rehabilitation Sciences, The University of Queensland, Brisbane, Australia
jDepartment of Orthopaedics and Rehabilitation, Oregon Health and Science University, Portland, OR, USA
kCastlereagh Imaging and Illawarra Radiology Group, St Leonards, Sydney, Australia
lDiscipline of Medicine, University of Sydney, Sydney, Australia
mRaymond Purves Bone and Joint Research Laboratories, Institute of Bone and Joint Research, Kolling Institute, University of Sydney, Australia
nDepartment of Clinical Sciences Lund, Orthopedics, Lund University, Sweden
oPaediatric Gait Analysis Service of New South Wales, Sydney Children's Hospitals Network (Randwick and Westmead), Sydney, Australia
pSchool of Health and Rehabilitation Sciences: Physiotherapy, University of Queensland, Brisbane, Australia
qPhysiotherapy Department, Royal Brisbane and Women's Hospital, Brisbane, Australia
rRECOVER Injury Research Centre, NHMRC CRE in Road Traffic Injury Recovery, The University of of Queensland, Brisbane, Australia
sSydney School of Veterinary Science, Faculty of Science, University of Sydney, Camperdown, Australia
∗Corresponding author. Department of Rheumatology, Level 10, Kolling Building, Kolling Institute, Royal North Shore Hospital, St Leonards, 2065, NSW, Australia. vicky.duong@sydney.edu.au