Pontoh, L.A.P., Department of Orthopaedic and Traumatology, Faculty of Medicine, Universitas Indonesia, Fatmawati General Hospital, Jakarta, Indonesia; Ismail, H.D., Department of Orthopaedics and Traumatology, Faculty of Medicine, Universitas Indonesia, Cipto Mangunkusumo Hospital, Jakarta, Indonesia; Fiolin, J., Jakarta Knee Orthopaedic Sports Center, Pondok Indah Hospital, Jakarta, Indonesia; Yausep, O.E., Faculty of Medicine, Universitas Indonesia, Cipto Mangunkusumo Hospital, Jakarta, Indonesia