Center for Stem Cell and Regenerative Medicine, Tokyo Medical and Dental University, Tokyo, Japan.
Department of Joint Surgery and Sports Medicine, Graduate School, Tokyo Medical and Dental University, Tokyo, Japan.
J Orthop Sci. 2021 Sep;26(5):812-822. doi: 10.1016/j.jos.2020.07.022. Epub 2020 Sep 12.
Precise knowledge of the prevalence and trends of arthroplasty can facilitate the design of medical plans for efficient treatments. The National Database of Health Insurance Claims and Specific Health Checkups of Japan (NDB) Open Data Japan provides statistics about the annual number of arthroplasties (knee, hip, shoulder, finger, elbow, and foot/ankle) through health insurance claim numbers for these surgeries. The purpose of this study was to document the annual arthroplasty numbers between 2014 and 2017 in Japan and to analyze their four-year trends, gender differences, age distributions, and regional differences as revealed by the complete survey.
Numbers of arthroplasty surgeries were extracted from the NDB Open Data Japan for 2014-2017. For "knee", "hip", "shoulder", "finger", "elbow", and "foot/ankle" arthroplasties, we showed the annual arthroplasty numbers, annual arthroplasty numbers by age group, annual arthroplasty numbers in individual prefectures, and annual arthroplasty numbers per 100,000 population in individual prefectures.
The annual arthroplasty numbers in 2017 were 146,189 for all joints, 82,304 for knees, 59,029 for hips, 2454 for shoulders, 1551 for fingers, 536 for elbows, and 291 for feet/ankles. For the four years up to 2017, the rate of alteration in the number of arthroplasties was +14% for total arthroplasties, +9% for knees, +21% for hip joints, +97% for shoulders, + 8% for fingers, -10% for elbows, and +25% for feet/ankles. The proportion of females was 70-90% and the peak age was between the late 60s and late 70s for all joints. Variations in arthroplasty numbers per population by prefecture appeared to be small for knees and hips and large for other joints.
We revealed the annual total number of arthroplasties for each joint in Japan using the NDB Open Data Japan for the first time.
准确了解关节置换术的流行程度和趋势有助于设计高效治疗的医疗计划。日本国民健康保险索赔和特定健康检查数据库（NDB）公开数据日本通过这些手术的健康保险索赔编号提供了有关每年关节置换术（膝关节、髋关节、肩关节、手指关节、肘关节和足踝关节）数量的统计数据。本研究的目的是记录 2014 年至 2017 年期间日本每年的关节置换数量，并通过全面调查分析其四年趋势、性别差异、年龄分布和地区差异。
从 NDB 公开数据日本提取 2014-2017 年的关节置换手术数量。对于“膝关节”、“髋关节”、“肩关节”、“手指关节”、“肘关节”和“足踝关节”关节置换术，我们展示了每年的关节置换数量、按年龄组划分的每年关节置换数量、各都道府县的每年关节置换数量以及各都道府县每 10 万人的每年关节置换数量。
2017 年所有关节的年关节置换数量为 146189 例，膝关节 82304 例，髋关节 59029 例，肩关节 2454 例，手指关节 1551 例，肘关节 536 例，足踝关节 291 例。在截至 2017 年的四年中，关节置换数量的变化率为：总关节置换术+14%，膝关节+9%，髋关节+21%，肩关节+97%，手指关节+8%，肘关节-10%，足踝关节+25%。女性比例为 70-90%，所有关节的峰值年龄在 60 多岁末至 70 多岁末。各都道府县每人口关节置换数量的差异似乎在膝关节和髋关节较小，而在其他关节较大。
我们首次使用 NDB 公开数据日本报告了日本每个关节的年总关节置换数量。
