1. Department of Orthopaedic Surgery Seoul National University Hospital Seoul South Korea
2. Department of Orthopaedic Surgery Seoul National University Bundang Hospital Seongnam South Korea
3. Department of Orthopaedic Surgery Gyeonsang National University Hospital Jinju South Korea
4. Department of Orthopaedic Surgery Chung‐Ang University Hospital Seoul South Korea
5. Department of Orthopaedic Surgery Ewha Womens University Hospital Seoul South Korea
6. Department of Orthopaedic Surgery Seoul Bumin Hospital Seoul South Korea