Faisal Rahman1, Iman Solichin2, Nurmansyah Hatta Dwiputra2
1Department of Orthopaedic & Traumatology, Cipto Mangunkusumo General Hospital, Faculty of Medicine Universitas Indonesia, Jakarta, Indonesia; 2Department of Orthopaedic & Traumatology, Spine Consultant, Orthopaedic Purwokerto Hospital, Purwokerto, Indonesia.