Fontenelle César Rubens da Costa, Schiefer Márcio, Mannarino Pietro, Lacerda Isac Borges, Machado Francisco José Thomé, Farias Raphael Gonçalves Dos Santos, de Oliveira Viviane Bastos, de Oliveira Liliam Fernandes
Universidade Federal do Rio de Janeiro, Hospital Universitário Clementino Fraga Filho, Orthopedic Trauma Service, Rio de Janeiro, RJ, Brazil.
Universidade Federal do Rio de Janeiro, Department of Orthopedics and Traumatology, Medical School, Rio de Janeiro, RJ, Brazil.
Acta Ortop Bras. 2020 Jul-Aug;28(4):190-194. doi: 10.1590/1413-785220202804229355.
To compare the mechanical properties of the supraspinatus tendon in different age groups using Supersonic Shearwave Imaging (SSI) elastography.
We evaluated 38 healthy individuals of both genders, 20 being in the range of 20 to 35 years and 18 being over 60 years. The shear modulus of the supraspinatus tendon was measured by SSI elastography, always on the right side. Means between age groups were compared and statistically analyzed using the Shapiro-Wilk normality test followed by the student's t-test and were established as a statistically significant value of p ≤ 0.05.
A statistically significant difference was observed when the mean values of the shear modulus of the supraspinatus tendon of young adults (23.98 ± 9.94 KpA) were compared with those of older adults (17.92 ± 6.17 KpA).
We found a difference between the means of the shear modulus measured by the SSI elastography, showing a significant decrease of the shear modulus with the chronological age progression.
使用超声剪切波成像（SSI）弹性成像技术比较不同年龄组冈上肌腱的力学性能。
我们评估了38名健康个体，其中20名年龄在20至35岁之间，18名年龄超过60岁。通过SSI弹性成像测量冈上肌腱的剪切模量，均测量右侧。使用Shapiro-Wilk正态性检验，然后进行学生t检验，比较年龄组之间的均值并进行统计分析，将p≤0.05确定为具有统计学意义的值。
比较年轻成年人（23.98±9.94 KpA）和老年人（17.92±6.17 KpA）冈上肌腱剪切模量的均值时，观察到统计学上的显著差异。
我们发现通过SSI弹性成像测量的剪切模量均值存在差异，表明随着年龄增长，剪切模量显著降低。
