Strain-based elastography assessment of patients with De Quervain tenosynovitis: A preliminary study

Abstract 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.