1. Department of Orthopaedic Surgery, Ulsan University Hospital, College of Medicine, Ulsan University, Ulsan, Korea
2. Department of Orthopaedic Surgery, Kyung Hee University Hospital at Gangdong, School of Medicine, Kyung Hee University, Seoul, Korea
3. Department of Orthopaedic Surgery, Hallym University Sacred Heart Hospital, Hallym University, Dongan-gu, Anyang-si, Korea
4. Department of Physical Medicine and Rehabilitation, Hallym University Sacred Heart Hospital, Hallym University, Dongan-gu, Anyang-si, Korea
5. Department of Orthopaedic Surgery, The Fourth Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong, China