About the Authors

Soon-Hyuck Lee

Contributed equally to this work with: Soon-Hyuck Lee, Jin-Hyuck Lee

Affiliation Department of Orthopaedic Surgery, Korea University College of Medicine, Anam Hospital, Seoul, Korea

Jin-Hyuck Lee

Contributed equally to this work with: Soon-Hyuck Lee, Jin-Hyuck Lee

Affiliation Department of Sports Medical Center, Korea University College of Medicine, Anam Hospital, Seoul, Korea

Sung-Eun Ahn

Affiliation Department of Sports Medical Center, Korea University College of Medicine, Anam Hospital, Seoul, Korea

Min-Ji Park

Affiliation Department of Sports Medical Center, Korea University College of Medicine, Anam Hospital, Seoul, Korea

Dae-Hee Lee

eoak22@empal.com

Affiliation Department of Orthopaedic Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea

Competing Interests

The authors have declared that no competing interests exist."

Author Contributions

Conceived and designed the experiments: SHL and DHL. Performed the experiments: SEA, JHL, and MJP. Analyzed the data: DHL. Contributed reagents/materials/analysis tools: SEA and MJP. Wrote the paper: DHL, SHL, and JHL. SEA, JHL, and MJP carried out isokinetic test and gait analysis.