1 Academic Department of Trauma and Orthopaedics, School of Medicine, University of Leeds, United Kingdom.
2 Academic Department of Trauma and Orthopaedics, School of Medicine, University of Leeds, United Kingdom; NIHR Leeds Biomedical Research Center, Chapel Allerton Hospital, Leeds, United Kingdom.
3 Hospital Municipal Miguel Couto, Serviço de Ortopedia e Traumatologia Prof. Nova Monteiro - Rio de Janeiro - RJ - Brasil.
4 Academic Department of Trauma and Orthopaedics, School of Medicine, University of Leeds, United Kingdom; NIHR Leeds Biomedical Research Center, Chapel Allerton Hospital, Leeds, United Kingdom. Electronic address: pgiannoudi@aol.com.