About the Authors

Moon Soo Park

Roles Conceptualization, Data curation, Investigation, Validation, Writing – original draft, Writing – review & editing

Affiliation Department of Orthopaedic Surgery, Medical College of Hallym University, Gyeonggi-do, Republic of Korea

Chang-Nam Kang

Roles Conceptualization, Data curation, Investigation, Validation

Affiliation Department of Orthopedic Surgery, Hanyang University College of Medicine, Seoul, Republic of Korea

Woo-Suk Lee

Roles Conceptualization, Data curation, Investigation, Validation

Affiliation Department of Orthopedic Surgery, Gangnam Severance Hospital, Seoul, Republic of Korea

Ho-Joong Kim

Roles Conceptualization, Data curation, Investigation, Validation

Affiliation Spine Center and Department of Orthopaedic Surgery, Seoul National University Bundang Hospital, Seoul National University College of Medicine, Gyeonggi-do, Republic of Korea

Sahnghoon Lee

Roles Conceptualization, Data curation, Investigation, Validation

Affiliation Department of Orthopaedic Surgery, Seoul National University, Seoul National University College of Medicine, Seoul, Republic of Korea

Jin Hwan Kim

Roles Conceptualization, Data curation, Investigation, Validation

Affiliation Department of Orthopaedic Surgery, Ilsan Paik Hospital, Inje University College of Medicine, Gyeonggi-do, Republic of Korea

Sang-Jin Shin

Roles Conceptualization, Data curation, Investigation, Validation

Affiliation Department of Orthopaedic Surgery, Mokdong Hospital, Ewha Womans University College of Medicine, Seoul, Republic of Korea

Seong-Hwan Moon

Roles Conceptualization, Data curation, Formal analysis, Funding acquisition, Investigation, Methodology, Project administration, Supervision, Validation

SHMOON@yuhs.ac

Affiliation Department of Orthopaedic Surgery, Yonsei University College of Medicine, Seoul, Republic of Korea

Competing Interests

This study was supported by a research fund from Hanmi Pharmaceutical Co., Ltd (grant number HM-IITNAX-001). NAXOZOL(Naproxen, Esomeprazole strontium) was provided by Hanmi Pharmaceutical Co., Ltd. The funder provided support in the form of salaries for authors [MSP, CNK, WSL, HJK, SHL, JHK, SJS, SHM]. NAXOZOL is a combination drug of naproxen and esomeprazole strontium ("esomezol" proved in FDA) as a product marketed in only Korea currently. NAXOZOL was patented in 2013 as it contains esomeprazole strontium developed in Hanmi pharmaceutical company. This does not alter our adherence to PLOS ONE policies on sharing data and materials.