• Kunhyung Bae, Soo-Sung Park, Jinhee Park, and Michael Seungcheol Kang.
• Department of Orthopaedic Surgery, Asan Medical Center Children's Hospital, University of Ulsan College of Medicine, Seoul, Korea.
• J. Korean Med. Sci. 2021 Nov 22; 36 (45): e289.

BackgroundIn the Korean medical system, the severity classification for a specific disease depends primarily on its nationwide admission rate in tertiary hospitals. Inversely, one of the important designation criteria for a tertiary hospital is the hospital's treatment ratio of patients classified as having a specific severe disease. Most diseases requiring pediatric orthopaedic surgery (POS) are not currently classified as high severity in terms of disease severity. We investigated the admission rates for the representative POS diseases in tertiary hospitals and compared these rates with those for adult orthopaedic surgery (AOS) diseases.MethodsSeven POS diagnoses and three AOS diagnoses were selected based on frequency of admission. Nationwide sample data were used to investigate the admission rates for these representative diagnoses from 2008 to 2017.ResultsSix of the seven frequent POS diagnoses presented high admission rates in tertiary hospitals (62.5-92.3%). In contrast, all frequent AOS diagnoses presented low admission rates in tertiary hospitals.ConclusionThe admission rates of frequent POS diagnoses in tertiary hospitals are high. Considering that these rates are the most important factors for the classification of disease severity, POS diseases seem to be underestimated in terms of severity. This may lead to a tendency for tertiary hospitals to intentionally reduce the admission of children with POS diseases. As a result, these children may not receive appropriate professional care. Therefore, for the disease severity, POS diseases should be classified differently from general AOS diseases by using different criteria reflecting the patient's age.© 2021 The Korean Academy of Medical Sciences.

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