| Summary: | Introduction: The development of the condition is occurs by repeated strain of the APL and EPB tendons as they pass under a thickened and swollen extensor retinaculum.
De Quervain tenosynovitis prevalence is about 0.5% in males and 1.3% in females. In the recent years, De Quervain tenosynovitis incidence increases by virtue of modern life conditions such as excessive computer use and increased use of cellular phones.
Materials and methods: The final study population comprised 52 subjects; 30 diseased (patients) (group 1) and 22 healthy subjects (volunteers) (group 2).
All participants were subject to; (1) history taking, (2) clinical examination to prove or eliminate the presence of tenosynovitis, (3) US, and (4) MRI.
Results: Strain-based elastography positive predictive value was 95%, negative predictive value was 90%, sensitivity 92%, and specificity 93%.
Conclusion: In conclusion, we can postulate that strain-based elastography ratio can be used confidently and quantitatively to diagnose De Quervain tenosynovitis.
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