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2023 Fiscal Year Final Research Report

Natural history of spinal kyphosis in a large population-based study

Research Project

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Project/Area Number 19K09632
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 56020:Orthopedics-related
Research InstitutionWakayama Medical University

Principal Investigator

Takami Masanari  和歌山県立医科大学, 医学部, 准教授 (40423959)

Co-Investigator(Kenkyū-buntansha) 岡 敬之  東京大学, 医学部附属病院, 特任准教授 (60401064)
山田 宏  和歌山県立医科大学, 医学部, 教授 (70275361)
Project Period (FY) 2019-04-01 – 2024-03-31
Keywords脊柱後弯症 / 縦断研究 / 一般住民コホート研究 / 自然経過 / 疫学調査
Outline of Final Research Achievements

The results of this study revealed a high prevalence of new Modic changes in the upper lumbar spine and transformation from Modic classification type I to types II and III in the lower lumbar spine, as well as the prevalence and distribution of endplate intensity changes and disc degeneration throughout the spine, and that these Modic changes were significantly associated with PI-LL mismatch. This indicates that profiling of Modic changes in the intervertebral discs may help improve the treatment of low back pain associated with adult spinal deformity. Furthermore, longitudinal follow-up study of lumbar degenerative spondylolisthesis, which can also cause spinal kyphosis, showed that the prevalence of lumbar degenerative spondylolisthesis in the general population was 20.3% (men: 18.1%, women: 21.3%) and was not associated with sex, age, or region.

Free Research Field

脊椎外科

Academic Significance and Societal Importance of the Research Achievements

今回の研究を通じて、当初の研究目的である、大規模一般地域住民コホートを用いた脊柱後弯症の縦断的追跡調査を行い、これまでに明らかになっていない、新規発生率、自然経過、予後は一定程度明らかにできた。すなわち、これまでの研究では類を見ない本研究の特徴である全脊椎MRIの調査を含めた、多くの大規模データを解析することで、これまで明らかになっていなかった椎間板変性と脊柱パラメータの関連や脊柱後弯症に関連する腰椎変性すべり症の累積発生率を明らかにすることができた。これらの新発見をもとに今後も研究を継続することで、脊柱後弯症の危険因子および新たな治療指針が近い将来解明されることは確実である。

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Published: 2025-01-30  

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