Intraoperative fractures prevention system for providing anxiety/safety to surgeons and patients

Research Project

Project/Area Number	26820160
Research Category	Grant-in-Aid for Young Scientists (B)
Allocation Type	Multi-year Fund
Research Field	Measurement engineering
Research Institution	Kitasato University
Principal Investigator	Rina Sakai 北里大学, 医療衛生学部, 准教授 (10383647)
Project Period (FY)	2014-04-01 – 2018-03-31
Project Status	Completed (Fiscal Year 2017)
Budget Amount *help	¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000) Fiscal Year 2017: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000) Fiscal Year 2016: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000) Fiscal Year 2015: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000) Fiscal Year 2014: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Keywords	術中骨折 / 医用システム / THA / ハンマリング音 / 試作デバイス / 小型化 / 臨床試験 / 人工股関節 / 人工股関節全置換術 / 解析・評価 / 臨床
Outline of Final Research Achievements	When cementless stems are implanted into femurs, adequate fixation depends on the surgeon's experienc in total hip arthroplasty. As such, an objective method of determining whether or not the stem has been correctly inserted may aid clinicians in decision. Here, we examined the relationship between the sound frequency caused by hammering the stem during implantation and the internal stress in artificial femurs and evaluated the utility of sound frequency analysis to prevent intraoperative fracture.