Affiliation: | 1. Foot and Ankle Unit, Northern General Hospital, Foot and Ankle Offices, Selby Wing, Herries Road, Sheffield S5 7AU, UK;2. Northern General Hospital, Foot and Ankle Unit, Herries Road, Sheffield, S5 7AU, UK;1. Steps2Walk, Baltimore, MD 21230, USA;2. Department of Orthopaedic Surgery, Penn Medicine, 3737 Market Street, Philadelphia, PA 19104, USA;1. Department of Foot and Ankle Surgery, Ramsay Healthcare Clinique de l''Union, Boulevard de Ratalens, Saint-Jean, Toulouse 31240, France;2. Department of Orthopaedics and Rehabilitation, University of Iowa, Iowa City, IA, USA;1. Trauma and Orthopaedic Department, Aintree University Hospital, Lower Lane, Liverpool L9 7AL, UK;2. Mersey Ortho-plastic Group, Liverpool Limb Reconstruction Service;3. University of Liverpool, Liverpool, UK |