A gyroscope-based system for intraoperative measurement of tibia coronal plane alignment in total knee arthroplasty
作者机构：Thayer School of Engineering at Dartmouth College14 Engineering DriveHanoverNH03755USA Department of KinesiologyCollege of Health SciencesUniversity of Rhode Island25 W.Independence WayKingstonRI02881USA Orthopedic Research Institute Holy Cross Hospital4725 N Federal Hwy.FtLauderdaleFL33308USA
出 版 物：《Medicine in Novel Technology and Devices》 (医学中新技术与新装备（英文）)
年 卷 期：2022年第13卷第1期
页 面：87-95页
学科分类：1002[医学-临床医学] 100210[医学-外科学(含：普外、骨外、泌尿外、胸心外、神外、整形、烧伤、野战外)] 10[医学]
基 金：This work was supported by OrthoSensor Inc. Dania Beach FL[grant number 20151001]
主 题：Alignment Gyroscope Inertial measurement unit Inertial sensing Orthopedic procedures Prosthetics Total knee arthroplasty
摘 要：Coronal plane alignment in total knee arthroplasty(TKA)is an important predictor of clinical outcomes including patient satisfaction and device *** and computer assisted navigation are the two primary technologies currently available to surgeons for intraoperative assessment of alignment;however,neither is particularly well-suited for use in this increasingly high volume *** we propose a novel gyroscopebased instrument for intraoperative validation of tibia coronal plane alignment,and provide initial analytical and experimental performance *** gyroscope-based alignment estimate is derived from simplified joint geometry and verified experimentally using a custom tibial trial insert containing a consumer-grade inertial measurement unit(IMU).Average accuracy of the gyroscope-based tibia coronal angle estimate was found to be within1in mechanical leg jig and cadaver *** results indicate that the proposed gyroscope-based method shows promise for low cost,accurate intraoperative validation of limb alignment in TKA ***grating IMU technology into the TKA surgical workflow via low-cost instrumentation will enable surgeons to easily validate implant alignment in real time,thereby reducing cost,operating room time,and future revision burden.
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