SEARCHCROSS-SECTIONALepidemiology, public health

cross-sectional·epidemiology, public health, internal medicine, surgery·PMC10031707

Increased incidence among the very elderly in the 2020 Niigata Prefecture Osteoporotic Hip Fracture Study

Journal of Bone and Mineral Metabolism · 7 authors, 4 centres

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This retrospective cross-sectional study surveyed 25 orthopedic clinics and 48 hospitals in Niigata Prefecture to record all osteoporotic hip fractures occurring from January 1 to December 31, 2020, with the total population of 2,198,210. In 2020, 3,369 hip fractures were recorded (661 males, 2,708 females). Although the overall age-adjusted incidence of hip fractures decreased from 2015, the incidence increased in patients aged 90 years and older regardless of sex. The proportion of patients receiving anti-osteoporosis drugs prior to fracture increased from 7.6% in 2004 to 17.3% in 2020. The average preoperative waiting time was 2.9 days, with 40.4% of delays attributed to holidays. The findings suggest that while osteoporosis treatment uptake has improved, further increases in treatment adoption and reductions in preoperative waiting time are needed.

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cross-sectional

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epidemiology

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ORIGINAL PAPER

PMC10031707

Increased incidence among the very elderly in the 2020 Niigata Prefecture Osteoporotic Hip Fracture Study

Journal of Bone and Mineral Metabolism

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ABSTRACT

Abstract Introduction A 2015 study showed a decreasing trend in the incidence of osteoporotic hip fractures in Niigata Prefecture, Japan, which had been increasing. This study aimed to investigate the incidence of osteoporotic hip fractures in 2020, determine the long-term change in the incidence of hip fractures from 1985 to 2020, and assess whether the decline in fracture incidence since 2010 has continued. Materials and Methods We obtained data from the registration forms submitted by hospitals and clinics of patients who lived in Niigata Prefecture and were diagnosed with osteoporotic hip fracture through a survey conducted from January 1, 2020 to December 31, 2020. Results In 2020, 3,369 hip fractures were recorded in Niigata Prefecture. Although the overall incidence of age-specific hip fractures decreased, it increased in patients aged ≥ 90 years, regardless of sex. The proportion of patients receiving anti-osteoporosis drugs prior to hip fracture increased from 7.6% in 2004 to 17.3% in 2020. Notably, surgical treatment should be performed as early as possible, and the preoperative waiting time was 2.9 days, which was mainly due to holidays. Conclusion The incidence of hip fractures in Niigata Prefecture has gradually increased over the past 35 years, with an increasing change observed in the very elderly recently in 2020. Although the treatment of osteoporotic hip fractures in Niigata Prefecture is adequate, improvements may include increasing the rate of adoption of osteoporosis treatment further and decreasing the number of days of preoperative waiting. Keywords: Osteoporotic hip fractures, Anti-osteoporosis drugs, Surgery, Long-term trend, Osteoporosis

CITATION EXPORT

Asami Nozaki, Norio Imai, Yugo Shobugawa et al.. Increased incidence among the very elderly in the 2020 Niigata Prefecture Osteoporotic Hip Fracture Study. Journal of Bone and Mineral Metabolism. (2023). https://doi.org/10.1007/s00774-023-01421-2

AUTHORS

7 · 4 CENTRES

Asami Nozaki, Norio Imai, Yugo Shobugawa, Hayato Suzuki, Yoji Horigome, Naoto Endo, Hiroyuki Kawashima

1Division of Orthopedic Surgery Department of Regenerative and Transplant Medicine, School of Medical and Dental Sciences, Niigata University Graduate, Niigata City, Niigata Prefecture Japan
2Division of Comprehensive Musculoskeletal Medicine, Niigata University Graduate School of Medical and Dental Sciences, 1-754, Asahimachi-Dori, Chuo-Ku, Niigata City, Niigata Prefecture 951-8510 Japan
3Division of International Health, School of Medical and Dental Sciences, Niigata University Graduate, Niigata City, Niigata Prefecture Japan
4Department of Orthopedic Surgery, Niigata Tsubame Rosai Hospital, Tsubane City, Niigata Prefecture Japan