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ELASTOGRAPHIC ANALYSIS OF THE SUPRASPINATUS TENDON IN DIFFERENT AGE GROUPS
César Rubens da Costa Fontenelle1, Márcio Schiefer2, Pietro Mannarino1,2
1Universidade Federal do Rio de Janeiro, Hospital Universitário Clementino Fraga Filho, Orthopedic Trauma Service, Rio de Janeiro, RJ, Brazil.
Acta Ortopedica Brasileira
|August 14, 2020
Summary
Supersonic Shearwave Imaging (SSI) elastography revealed that the supraspinatus tendon
Area of Science:
- Orthopedics
- Biomechanics
- Medical Imaging
Background:
- The supraspinatus tendon's mechanical properties are crucial for shoulder function.
- Age-related changes in tendon properties can impact shoulder health and injury risk.
Purpose of the Study:
- To investigate age-related differences in supraspinatus tendon mechanical properties.
- To utilize Supersonic Shearwave Imaging (SSI) elastography for quantitative assessment.
Main Methods:
- 38 healthy participants (20-35 years and >60 years) were evaluated.
- Supersonic Shearwave Imaging (SSI) elastography measured the shear modulus of the supraspinatus tendon.
- Statistical analysis included Shapiro-Wilk and student's t-tests (p ≤ 0.05).
Main Results:
- A statistically significant difference in shear modulus was found between young and older adults.
- Young adults exhibited a higher mean shear modulus (23.98 ± 9.94 KpA) compared to older adults (17.92 ± 6.17 KpA).
Conclusions:
- The study demonstrates a significant decrease in supraspinatus tendon shear modulus with advancing age.
- SSI elastography is a viable tool for assessing age-related mechanical property changes in tendons.

