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Open Access 07-11-2024 | Osteoporosis | Original Article

Nationwide database study of postoperative sequelae and in-hospital mortality in super-elderly hip fracture patients

Authors: Yu Mori, Kunio Tarasawa, Hidetatsu Tanaka, Naoko Mori, Kiyohide Fushimi, Toshimi Aizawa, Kenji Fujimori

Published in: Journal of Bone and Mineral Metabolism

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Abstract

Introduction

The risk of postoperative sequelae and in-hospital mortality in Japanese patients aged 90 years and older with hip fractures is unexplored. This study aims to use a comprehensive medical claims database in Japan to compare super-elderly patients aged 90 years and older with elderly aged 65–89 and clarify the risk of sequelae and in-hospital mortality in super-elderly patients.

Materials and methods

We retrospectively analyzed the Diagnosis Procedure Combination (DPC) database for all of Japan from April 2016 to March 2022. Medical records from approximately 1100 DPC-related hospitals were provided with consistent consent during this period. In this study, we focused on super-elderly patients and examined the association with the risk of postoperative pneumonia, pulmonary embolism, myocardial infarction, urinary tract infection, acute renal dysfunction, subsequent cognitive dysfunction, and in-hospital mortality after one-to-one propensity score matching.

Results

After performing propensity score matching based on sex and comorbidities, 129,953 pairs of patients were identified. These pairs were compared to elderly and super-elderly patients. The results of this study showed that compared with hip fractures in the elderly, hip fractures in the super-elderly were associated with an increased risk of pneumonia, urinary tract infection, acute renal dysfunction, subsequent cognitive dysfunction, and in-hospital mortality after adjustment for confounders. The odds ratio of in-hospital mortality was 2.190 (95% CI 2.062–2.325).

Conclusion

As it has been shown that super-elderly patients with hip fractures are at greater risk of respiratory and urinary tract infections and increased in-hospital mortality, careful attention should be required for perioperative management.
Appendix
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Literature
5.
go back to reference Tamaki J, Fujimori K, Ikehara S, Kamiya K, Nakatoh S, Okimoto N, Ogawa S, Ishii S, Iki M, Working Group of Japan Osteoporosis F (2019) Estimates of hip fracture incidence in Japan using the National Health Insurance Claim Database in 2012–2015. Osteoporos Int 30:975–983. https://doi.org/10.1007/s00198-019-04844-8CrossRef Tamaki J, Fujimori K, Ikehara S, Kamiya K, Nakatoh S, Okimoto N, Ogawa S, Ishii S, Iki M, Working Group of Japan Osteoporosis F (2019) Estimates of hip fracture incidence in Japan using the National Health Insurance Claim Database in 2012–2015. Osteoporos Int 30:975–983. https://​doi.​org/​10.​1007/​s00198-019-04844-8CrossRef
6.
go back to reference Yamamoto N, Sawaguchi T, Matsushita T, Katoh N, Arai H, Shirahama M, Endo N, Hagino H, Mori S, Teramoto T, Ookuro M, Hiraoka M, Takahashi HE (2024) Fragility fracture network-japan: the challenge of establishment of a national hip fracture database and successful achievement of nationwide health system change for hip fracture care in Japan. Injury. https://doi.org/10.1016/j.injury.2024.111452CrossRefPubMed Yamamoto N, Sawaguchi T, Matsushita T, Katoh N, Arai H, Shirahama M, Endo N, Hagino H, Mori S, Teramoto T, Ookuro M, Hiraoka M, Takahashi HE (2024) Fragility fracture network-japan: the challenge of establishment of a national hip fracture database and successful achievement of nationwide health system change for hip fracture care in Japan. Injury. https://​doi.​org/​10.​1016/​j.​injury.​2024.​111452CrossRefPubMed
Metadata
Title
Nationwide database study of postoperative sequelae and in-hospital mortality in super-elderly hip fracture patients
Authors
Yu Mori
Kunio Tarasawa
Hidetatsu Tanaka
Naoko Mori
Kiyohide Fushimi
Toshimi Aizawa
Kenji Fujimori
Publication date
07-11-2024
Publisher
Springer Nature Singapore
Published in
Journal of Bone and Mineral Metabolism
Print ISSN: 0914-8779
Electronic ISSN: 1435-5604
DOI
https://doi.org/10.1007/s00774-024-01564-w

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