Greenwald D, Blum LC, III, Adams D, et al. SWE is a perspective screening tool for early detection of compressive neuropathies.Ĭubital tunnel syndrome Elastography Ulnar nerve Ulnar nerve entrapment syndrome Ulnar neuropathies.Significant increase of entrapped ulnar nerve stiffness is observed in UNE.SWE enables reliable detection of cubital tunnel syndrome.SWE seems to be a promising, reliable and simple quantitative adjunct test to support the diagnosis of UNE. A weak positive correlation was found in the UNE group between the ulnar nerve CSA and stiffness (R = 0.31, p = 0.008). Mean CSA of the ulnar nerve in the cubital tunnel turned out to be significantly larger in patients with UNE than in healthy controls (p < 0.001). Ulnar nerve stiffness of 61 kPa, CT to DA stiffness ratio equal 1.68, and CT to MA stiffness ratio of 1.75 provided 100% specificity, sensitivity, positive and negative predictive value in the detection of UNE. Patients with UNE presented with significantly greater ulnar nerve stiffness in the cubital tunnel than the controls (mean, 96.38 kPa vs. The CSA of the ulnar nerve in the cubital tunnel was estimated by means of ultrasonographic imaging. Each participant was subjected to SWE of the ulnar nerve at three levels: in the cubital tunnel (CT) and at the distal arm (DA) and mid-arm (MA). The study included 34 patients with UNE (mean age, 59.35 years) and 38 healthy controls (mean age, 57.42 years).
The secondary objective was to compare the cross-sectional areas (CSA) of the ulnar nerve in the cubital tunnel and to determine a cut-off value for this parameter accurately identifying persons with UNE. The primary aim of this study was to verify if shear-wave elastography (SWE) can be used to diagnose ulnar neuropathy at the elbow (UNE).
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