1 Department of Orthopaedic Surgery, Sengkang General Hospital, Singapore.
2 Department of Orthopaedic Surgery, Sengkang General Hospital; Department of Orthopaedic Surgery, Yong Loo Lin School of Medicine, National University of Singapore; Musculoskeletal Sciences Academic Clinical Programme, Duke-NUS Medical School, Singapore.
3 Department of Orthopaedic Surgery, Sengkang General Hospital; Musculoskeletal Sciences Academic Clinical Programme, Duke-NUS Medical School, Singapore.
4 Department of Anaesthesiology, Sengkang General Hospital, Singapore.