EFFECT OF KNEE ANGLE AND QUADRICEPS MUSCLE FORCE ON SHEAR-WAVE ELASTOGRAPHY MEASUREMENTS AT THE PATELLAR TENDON

被引:14
|
作者
Kuervers, Emily J. [1 ,2 ]
Firminger, Colin R. [1 ,2 ,3 ]
Edwards, W. Brent [1 ,2 ,3 ]
机构
[1] Univ Calgary, Fac Kinesiol, Human Performance Lab, Calgary, AB, Canada
[2] Univ Calgary, McCaig Inst Bone & Joint Hlth, Calgary, AB, Canada
[3] Univ Calgary, Biomed Engn Grad Program, Calgary, AB, Canada
来源
ULTRASOUND IN MEDICINE AND BIOLOGY | 2021年 / 47卷 / 08期
关键词
Tendon stiffness; Tendinopathy; Ultrasound; Reliability; Knee; MECHANICAL-PROPERTIES; FEMORIS MUSCLE; ELASTIC PROPERTIES; ACHILLES; TENDINOPATHY; ULTRASOUND; SWE;
D O I
10.1016/j.ultrasmedbio.2021.03.031
中图分类号
O42 [声学];
学科分类号
070206 ; 082403 ;
摘要
elastography (SWE) is a non-invasive imaging technique that provides estimates of tissue stiffness via shear-wave speed measurements. No standardized protocol currently exists for SWE of the patellar tendon, which may be influenced by knee angle and quadriceps muscle force. In this study, the reliability of SWE in cadaveric patellar tendons was examined at three knee angles (0 degrees, 30 degrees and 60 degrees) and three quadriceps muscle forces (0, 50 and 100 N). Shear-wave speed was significantly higher at a knee angle of 60 degrees than at 0 degrees or 30 degrees (increases of 7% and 9%, respectively), and when the quadriceps muscle force was greater than or equal to 50 N (increase of 15%). SWE of the patellar tendon displayed excellent repeatability regardless of knee angle as long as no quadriceps force was generated (intra-class correlation coefficient >0.91). This research illustrates the importance of controlling knee angle and quadriceps force for consistency and comparison of SWE results. (E-mail: wbedward@ucalgary.ca) (c) 2021 World Federation for Ultrasound in Medicine & Biology. All rights reserved.
引用
收藏
页码:2167 / 2175
页数:9
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