Observational studyEuropean journal of physical and rehabilitation medicine2025
Evaluation of sonographic ulnar nerve cross-sectional area cutoff values at and around the medial epicondyle for diagnosing ulnar neuropathy at the elbow in wheelchair users.
Observational study in European journal of physical and rehabilitation medicine, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
backgroundCubital tunnel syndrome (CuTS) is a frequent complication in wheelchair users, but optimal sonographic cross-sectional area (CSA) cutoff values and their diagnostic performances remain unclear. Electrodiagnosis studies for confirmation can be uncomfortable and may require another visit.
aimTo evaluate the diagnostic performance of the sonographic ulnar nerve CSA (CSA-U) cutoff value of 10 mm
designSingle-centre, prospective, observational, cross-sectional study.
settingOutpatient rehabilitation clinic. POPULATION: Wheelchair users aged ≥20 years with spinal cord injury or lesion.
methodsParticipants completed a CuTS symptom questionnaire, underwent ultrasonographic CSA measurements at the medial epicondyle (ME) and 2 cm proximal (P2) and distal (D2) to it, and electrodiagnostic studies. CuTS was confirmed by clinical symptoms and positive electrodiagnostic findings. Diagnostic performance was evaluated using the area under the receiver operating characteristic curve (AuROC), sensitivity, and specificity across CSA cutoffs.
resultsSeventy-seven participants (142 arms) were included, with 28 (19.7%) arms diagnosed with CuTS. The diagnostic performance of a 10 mm
conclusionsThe CSA-U 10 mm CLINICAL REHABILITATION IMPACT: Implementation of ultrasonographic CSA measurement at ME and P2 level could aid early detection of CuTS and enhance clinical decision-making due to greater accessibility at the outpatient clinic. Additionally, it also provides anatomical insights to electrodiagnostic evaluation.
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