Alexandros Vris ,Department of Trauma and Orthopaedic Surgery, The Royal London Hospital, London, UK, Alexandros Vris, Department of Trauma and Orthopaedic Surgery, The Royal London Hospital, London, UK, Phone: +44 7473270965, e-mail: avris@nhs.net, avris@nhs.net

Ossama Al-Obaedi ,Department of Trauma and Orthopaedic Surgery, The Royal London Hospital, London, UK,

Kalpesh R Vaghela ,Department of Trauma and Orthopaedic Surgery, The Royal London Hospital, London, UK,

Nima Heidari ,Department of Trauma and Orthopaedic Surgery, The Royal London Hospital, London, UK,

Rasmus Elsoe ,Department of Orthopaedic Surgery, Aalborg University Hospital, Aalborg University, 18-22 Hobrovej, 9000 Aalborg, Denmark, Rasmus Elsoe rae@rn.dk, rae@rn.dk

Peter Larsen ,Department of Occupational Therapy and Physiotherapy, Aalborg University Hospital, Aalborg University, 18-22 Hobrovej, 9000 Aalborg, Denmark,

Jens Traerup ,Department of Orthopedic Trauma Surgery, Aalborg University Hospital, Aalborg, Denmark,

Mindaugas Mikuzis ,Department of Orthopedic Trauma Surgery, Aalborg University Hospital, Aalborg, Denmark,

Alec Lik-Hang Hung ,Department of Orthopedics and Traumatology, Prince of Wales Hospital, Chinese University of Hong Kong, Hong Kong,

Jeanne M Franzone ,Department of Orthopedic Surgery, Nemours/Alfred I. DuPont Hospital for Children, Wilmington, Delaware, USA; Department of Orthopedic Surgery, International Center for Limb Lengthening, Rubin Institute for Advanced Orthopedics, Sinai Hospital of Baltimore, Baltimore, Maryland, USA,

Ahmed I Hammouda ,Orthopedic Surgery Department, Al-Azhar University Hospitals, Cairo, Egypt,

Shawn C Standard ,Department of Orthopedic Surgery, International Center for Limb Lengthening, Rubin Institute for Advanced Orthopedics, Sinai Hospital of Baltimore, Baltimore, Maryland, USA,

Wai-Wang Chau ,Department of Orthopedics and Traumatology, Prince of Wales Hospital, Chinese University of Hong Kong, Hong Kong,

John E Herzenberg ,Department of Orthopedic Surgery, International Center for Limb Lengthening, Rubin Institute for Advanced Orthopedics, Sinai Hospital of Baltimore, Baltimore, Maryland, USA, John E Herzenberg, Department of Orthopedic Surgery, International Center for Limb Lengthening, Rubin Institute for Advanced Orthopedics, Sinai Hospital of Baltimore, Baltimore, Maryland, USA, Phone: +1 410 601 1724, e-mail: jherzenb@lifebridgehealth.org, jherzenb@lifebridgehealth.org

Arshad Khaleel ,Rowley Bristow Orthopaedic Unit, St. Peter\'s Hospital, Guildford Road, Chertsey, Surrey KT16 0PZ, UK, arshadkhaleel@yahoo.com

James P McEvoy ,Department of Biological Sciences, Royal Holloway, University of London, Egham, Surrey, UK, James P McEvoy, Department of Biological Sciences, Royal Holloway, University of London, Egham, Surrey, UK, Phone: +44 7759236692, e-mail: james.mcevoy@rhul.ac.uk, james.mcevoy@rhul.ac.uk

Philip Martin ,Department of Biological Sciences, Royal Holloway, University of London, Egham, Surrey, UK,

Shobana Dissanayeke ,Department of Biological Sciences, Royal Holloway, University of London, Egham, Surrey, UK,

Apostolos Dimitroulias ,Department of Orthopedic Surgery, Jacobi Medical Center, Bronx, New York, USA, Apostolos Dimitroulias, Department of Orthopedic Surgery, Jacobi Medical Center, Bronx, New York, USA, Phone: +1 6467729198, e-mail: adimitroulias@hotmail.com, adimitroulias@hotmail.com

Ryhor Harbacheuski ,Department of Orthopedic Surgery, VA Southern Nevada Healthcare System, Las Vegas, Nevada, USA,

Alexandros Vris ,Department of Trauma and Orthopaedic Surgery, The Royal London Hospital, London, UK, Alexandros Vris, Department of Trauma and Orthopaedic Surgery, The Royal London Hospital, London, UK, Phone: +44 7473270965, e-mail: avris@nhs.net, avris@nhs.net

Nima Heidari ,Department of Trauma and Orthopaedic Surgery, The Royal London Hospital, London, UK,

Peter Bates ,Department of Trauma and Orthopaedics, Royal London Hospital, Barts Health NHS Trust, London, UK,

Austin T. Fragomen ,Weill Medical College, Cornell University, 535 East 70th Street, New York, NY 10021, USA; Hospital for Special Surgery, 535 East 70th Street, New York, NY 10021, USA, Austin T. Fragomen FragomenA@hss.edu, FragomenA@hss.edu

Sherif Dabash ,Department of Orthopaedic Surgery, Limb Lengthening and Complex Reconstruction Service, The Hospital for Special Surgery, New York, USA; Department of Orthopaedic Surgery, Weill Medical College of Cornell University, The Hospital for Special Surgery, New York, USA,

David T Zhang ,Department of Orthopaedic Surgery, Limb Lengthening and Complex Reconstruction Service, The Hospital for Special Surgery, New York, USA; Department of Orthopaedic Surgery, Weill Medical College of Cornell University, The Hospital for Special Surgery, New York, USA,

Bruno Livani ,Rua Ana Zorzetto Favaro 18, Residencial Paineiras, Bairro Betel, São Paulo 13140-000, Brazil, B. Livani e-mail: brunolivani@hotmail.com, brunolivani@hotmail.com

Mauricio LD Mongon ,Department of Orthopedics and Traumatology, Unicamp, Campinas, São Paulo, Brazil,

Aurelio L Sposito ,Department of Ortopedia e Traumatologia, Universidade Estadual de Campinas, São Paulo, Brazil, Aurelio L Sposito, Department of Ortopedia e Traumatologia, Universidade Estadual de Campinas, São Paulo, Brazil, Phone: +55 19 98173-0419, e-mail: aurelioortopedia@gmail.com, aurelioortopedia@gmail.com

George MN Nunes ,Department of Orthopedics and Traumatology, Unicamp, Campinas, São Paulo, Brazil,

William Belangero ,Department of Orthopedics and Traumatology, Unicamp, Campinas, São Paulo, Brazil,

Austin T. Fragomen ,Weill Medical College, Cornell University, 535 East 70th Street, New York, NY 10021, USA; Hospital for Special Surgery, 535 East 70th Street, New York, NY 10021, USA, Austin T. Fragomen FragomenA@hss.edu, FragomenA@hss.edu

Stephen Greenfield ,Department of Orthopaedic Surgery, Foot and Ankle and Limb Deformity and Reconstructive Surgery, OrthoIndy Hospital, Indianapolis, Indiana, USA,

Kelsey M Matta ,Department of Orthopaedic Surgery, Geisinger Commonwealth School of Medicine, Scranton, Pennsylvania, USA,

Thomas H McCoy ,Department of Orthopaedic Surgery, Harvard Medical School, Center for Quantitative Health, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts, USA,

Ashraf A. Khanfour ,Department of Orthopaedic Surgery, Damanhur National Medical Institute, Damanhur, Egypt, A. A. Khanfour e-mail: Dr_ashrafkhanfour@hotmail.com, Dr_ashrafkhanfour@hotmail.com

Ayman A Khanfour ,Department of Anatomy, Faculty of Medicine, Alexandria University, Alexandria, Egypt,