Achilles Tendon Resting Angle Relates to Tendon Length and Function.
Achilles Tendon Resting Angle Relates to Tendon Length and Function.
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DOI：
10.1177/1071100717742372
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发表时间：
2018-03
影响因子：
2.7
通讯作者：
Silbernagel KG
中科院分区：
文献类型：
--
作者：
Zellers JA;Carmont MR;Silbernagel KG
跟腱断裂后，肌腱延长导致小腿功能的长期缺陷。跟腱长度的替代测量，跟腱静止角（ATRA），已被描述，但尚未验证使用超声测量的长度。因此，本研究的目的是验证ATRA对超声的影响。其次，本研究的目的是确定其他因素（肌腱力学性能，脚跟上升测试性能）的ATRA的关系。纳入了单侧跟腱断裂患者。在膝关节屈曲和伸展位置测量ATRA。使用扩展视野超声成像测量肌腱伸长。连续剪切波弹性成像量化肌腱的力学性能。使用斯皮尔曼rho检验变量之间的关系。亚组分析用于比较破裂后少于或多于一年的受试者。纳入了42名参与者（破裂后平均（SD）为18.2（35.9）个月）。肌腱伸长与膝关节屈曲（rho=0.491，p=0.001）和膝关节伸展（0.501，p=0.001）位置的相对ATRA相关。在破裂后1年以上的个体中，膝关节屈曲时的相对ATRA与相对于未受伤侧的剪切模量（rho=0.800，p=0.01）和足跟抬高试验的总功（rho=-0.782，p=0.008）相关。在膝关节屈曲和膝关节伸展位置的相对ATRA与断裂后第一年内的肌腱伸长有中度关系。一年后，膝关节屈曲时的相对ATRA可能是肌腱伸长的一个更好的指标，也与肌腱的力学性能和足跟试验性能有关。三、病例对照研究
Following Achilles tendon rupture, tendon elongation leads to long term deficits in calf function. A surrogate measure of Achilles tendon length, Achilles tendon resting angle (ATRA), has been described but has not been validated against length measured using ultrasound. Therefore, the purpose of this study was to validate the ATRA against ultrasound. Secondarily, this study aimed to identify the relationship of other factors (tendon mechanical properties, heel-rise test performance) to the ATRA. Individuals following unilateral Achilles tendon rupture were included. ATRA was measured in knee flexed and extended positions. Tendon elongation was measured using extended field of view ultrasound imaging. Continuous shear wave elastography quantified tendon mechanical properties. The relationship between variables was tested using Spearman’s rho. Sub-group analysis was used to compare subjects with less then or greater than one year following rupture. 42 participants (mean(SD) of 18.2(35.9) months following rupture) were included. Tendon elongation related with relative ATRA with knee flexed (rho=0.491, p=0.001) and knee extended (0.501, p=0.001) positions. In individuals greater than 1 year following rupture, relative ATRA with the knee flexed related to shear modulus (rho=0.800, p=0.01) and total work on the heel-rise test (rho=-0.782, p=0.008) relative to the uninjured side. Relative ATRA in both knee flexed and knee extended positions has a moderate relationship to tendon elongation within the first year following rupture. After one year, the relative ATRA with knee flexed may be a better indicator of tendon elongation and also related to tendon mechanical properties and heel-rise test performance. III, case-control study
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影响因子：
4.1
作者：
Brorsson, A.;Olsson, N.;Silbernagel, K. G.
通讯作者：
Silbernagel, K. G.
影响因子：
4.8
作者：
Lantto, Iikka;Heikkinen, Juuso;Leppilahti, Juhana
通讯作者：
Leppilahti, Juhana
DOI：
10.1002/jor.22878
发表时间：
2015-06
期刊：
Journal of orthopaedic research : official publication of the Orthopaedic Research Society
影响因子：
--
作者：
Suydam SM;Soulas EM;Elliott DM;Silbernagel KG;Buchanan TS;Cortes DH
通讯作者：
Cortes DH
影响因子：
--
作者：
Silbernagel, Karin Gravare;Shelley, Kristen;Varrecchia, Shaun
通讯作者：
Varrecchia, Shaun
影响因子：
2.7
作者：
Costa, ML;Logan, K;Tucker, K
通讯作者：
Tucker, K