Single-center experience with Knee+^(TM) augmented reality navigation system in primary total knee arthroplasty  

作　　者：Evangelos Sakellariou Panagiotis Alevrogiannis Fani Alevrogianni Athanasios Galanis Michail Vavourakis Panagiotis Karampinas Panagiotis Gavriil John Vlamis Stavros Alevrogiannis 

机构地区：[1]The 3^(rd)Department of Orthopaedic Surgery,National&Kapodistrian University of Athens,KAT General Hospital,Athens 14561,Greece [2]The 1^(st)Department of Orthopaedic Surgery,National&Kapodistrian University of Athens,Attikon General Hospital,Athens 14561,Greece [3]Department of Anesthesiology,KAT General Hospital,Athens 14561,Greece [4]Department of Robotic Hip&Knee Orthopaedic Surgery,Metropolitan General Hospital,Athens 14561,Greece

出　　处：《World Journal of Orthopedics》2024年第3期247-256,共10页世界骨科杂志（英文版）

摘　　要：BACKGROUND Computer-assisted systems obtained an increased interest in orthopaedic surgery over the last years,as they enhance precision compared to conventional hardware.The expansion of computer assistance is evolving with the employment of augmented reality.Yet,the accuracy of augmented reality navigation systems has not been determined.AIM To examine the accuracy of component alignment and restoration of the affected limb’s mechanical axis in primary total knee arthroplasty(TKA),utilizing an augmented reality navigation system and to assess whether such systems are conspicuously fruitful for an accomplished knee surgeon.METHODS From May 2021 to December 2021,30 patients,25 women and five men,under-went a primary unilateral TKA.Revision cases were excluded.A preoperative radiographic procedure was performed to evaluate the limb’s axial alignment.All patients were operated on by the same team,without a tourniquet,utilizing three distinct prostheses with the assistance of the Knee+™augmented reality navigation system in every operation.Postoperatively,the same radiographic exam protocol was executed to evaluate the implants’position,orientation and coronal plane alignment.We recorded measurements in 3 stages regarding femoral varus and flexion,tibial varus and posterior slope.Firstly,the expected values from the Augmented Reality system were documented.Then we calculated the same values after each cut and finally,the same measurements were recorded radiolo-gically after the operations.Concerning statistical analysis,Lin’s concordance correlation coefficient was estimated,while Wilcoxon Signed Rank Test was performed when needed.RESULTS A statistically significant difference was observed regarding mean expected values and radiographic mea-surements for femoral flexion measurements only(Z score=2.67,P value=0.01).Nonetheless,this difference was statistically significantly lower than 1 degree(Z score=-4.21,P value<0.01).In terms of discrepancies in the calculations of expected values and controlled measur

关 键 词：Augmented reality ORTHOPEDICS Total knee arthroplasty ROBOTICS KNEE NAVIGATION 

分 类 号：R687.4[医药卫生—骨科学]