Shear wave elastography of the knee menisci

Area of Science:

• Orthopedics
• Medical Imaging
• Biophysics

Background:

• Knee meniscus stiffness is crucial for joint function.
• Non-invasive methods for assessing meniscal elasticity are needed.

Purpose of the Study:

• To evaluate the feasibility of shear wave elastography (SWE) for measuring knee meniscus stiffness.
• To explore correlations between meniscal elasticity and demographic factors in healthy adults.

Main Methods:

• Observational, cross-sectional study of 17 healthy adults (34 knee joints).
• SWE applied to the anterior horn of the medial menisci bilaterally.
• Pearson correlation analysis used for demographic factor correlations.

Main Results:

• Mean shear elastic modulus of the right medial meniscus: 24.86 ± 6.35 kPa.
• Mean shear elastic modulus of the left medial meniscus: 23.86 ± 4.49 kPa.
• Significant inverse correlation between right meniscus elasticity and height; inverse correlation with age and positive correlation with BMI for the left meniscus.

Conclusions:

• Shear wave elastography demonstrates potential as a tool for assessing knee meniscus stiffness.
• Preliminary findings suggest SWE can detect variations in meniscal elasticity related to demographic factors.