Abstract
Background
Carpal tunnel syndrome (CTS) is a type of peripheral entrapment neuropathy and common for the patients with psoriatic arthritis (PsA). Shear wave elastography (SWE) is a new ultrasonography technique that can be used for diagnosing CTS, but not studied in PsA patients.
Aims
The aim of this study to measure the stiffness of median nerve and hand muscles by quantitative SWE to identify whether SWE can be used for diagnosing CTS in patients with PsA or not.
Methods
To diagnose CTS, all patients had electrodiagnostic study. The stiffness values of the median nerve, abductor pollicis brevis, and abductor digiti minimi were determined using SWE. Muscle stiffness ratio was also calculated.
Results
Consideration is given to 48 patients with PsA (93 wrists) and 29 healthy volunteers (57 wrists). Median nerve stiffness was found to be significantly higher, and abductor pollicis brevis’ stiffness and muscle stiffness ratio were significantly lower in PsA patients’ wrists compared to control group (p = 0.002, p < 0.001, p = 0.001, respectively) and in CTS wrists compared to others (p < 0.001, p < 0.001, p = 0.001, respectively). Receiver operating characteristic analysis identified 28.2 kPA as the median nerve stiffness cut-off point for differentiating CTS in PsA patients (p = 0.001).
Conclusions
We found that SWE has a good diagnostic value for CTS with PsA patients; hence, we can conclude that SWE could diagnose CTS in PsA patients.
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Data availability
The data that support the findings of this study are available from the corresponding author upon reasonable request.
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All the authors contributed to the study conception and design. Material preparation, data collection, and analysis were performed by Ezgi Akyildiz Tezcan, Mehmet Sedat Durmaz, Elif Balevi Batur, and Kemal Erol. The first draft of the manuscript was written by Ezgi Akyildiz Tezcan, and all the authors commented on the previous versions of the manuscript. All the authors read and approved the final manuscript.
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Tezcan, E.A., Levendoglu, F., Durmaz, M.S. et al. Utility of shear wave elastography for diagnosing carpal tunnel syndrome with psoriatic arthritis. Ir J Med Sci 193, 977–985 (2024). https://doi.org/10.1007/s11845-023-03512-5
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DOI: https://doi.org/10.1007/s11845-023-03512-5