{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,8,13]],"date-time":"2026-08-13T14:41:52Z","timestamp":1786632112300,"version":"build-2736575974"},"reference-count":21,"publisher":"Wiley","issue":"3","license":[{"start":{"date-parts":[[2026,6,21]],"date-time":"2026-06-21T00:00:00Z","timestamp":1782000000000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"},{"start":{"date-parts":[[2026,6,21]],"date-time":"2026-06-21T00:00:00Z","timestamp":1782000000000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/doi.wiley.com\/10.1002\/tdm_license_1.1"}],"funder":[{"DOI":"10.13039\/501100004329","name":"The Slovenian Research and Innovation Agency","doi-asserted-by":"publisher","award":["P3\u20100338"],"award-info":[{"award-number":["P3\u20100338"]}],"id":[{"id":"10.13039\/501100004329","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Muscle and Nerve"],"published-print":{"date-parts":[[2026,9]]},"abstract":"ABSTRACT<\/jats:title>\n \n Introduction\/Aims<\/jats:title>\n \n Nerve cross\u2010sectional area (CSA) is the most robust and sensitive ultrasonographic indicator of nerve pathology. The study aimed to identify predictors of maximal CSA (CSA\n max<\/jats:sub>\n ) in ulnar neuropathy at the elbow (UNE) and to assess its utility in elucidating the mechanism of UNE, which is potentially important for patient referral to a surgeon.\n <\/jats:p>\n <\/jats:sec>\n \n Methods<\/jats:title>\n \n In a group of prospectively recruited UNE patients, 11 demographic, clinical, and electrodiagnostic features were recorded. CSA\n max<\/jats:sub>\n in the elbow segment was measured ultrasonographically. Explanatory variables for CSA\n max<\/jats:sub>\n were determined using a backward stepwise method of multiple linear regression analysis. To determine the CSA\n max<\/jats:sub>\n threshold with the best differentiation of retrocondylar compression and cubital tunnel entrapment (i.e., the UNE mechanism), a ROC curve was constructed.\n <\/jats:p>\n <\/jats:sec>\n \n Results<\/jats:title>\n \n We studied 130 patients (94 men), aged 27\u201388\u2009years (median 62\u2009years). The only significant predictor of CSA\n max<\/jats:sub>\n was the mechanism of UNE (CSA\n max<\/jats:sub>\n \u2009=\u20097.49\u2009+\u20096.89 UNE mechanism, SE 1.04, (adjusted)\n R<\/jats:italic>\n 2<\/jats:sup>\n \u2009=\u20090.25,\n p<\/jats:italic>\n \u2009<\u20090.0001). The best differentiation between UNE mechanisms was obtained at the CSA\n max<\/jats:sub>\n of 16\u2009mm\n 2<\/jats:sup>\n (sensitivity 0.80, positive predictive value 0.71).\n <\/jats:p>\n <\/jats:sec>\n \n Discussion<\/jats:title>\n \n In UNE, the main determinant of CSA\n max<\/jats:sub>\n was the mechanism of neuropathy. In the UNE of unclear mechanism, CSA\n max<\/jats:sub>\n larger than 16\u2009mm\n 2<\/jats:sup>\n is more in favor of a cubital tunnel entrapment. These findings suggest that US is more sensitive in the diagnosis of entrapment compared with compression neuropathies.\n <\/jats:p>\n <\/jats:sec>","DOI":"10.1002\/mus.70324","type":"journal-article","created":{"date-parts":[[2026,6,22]],"date-time":"2026-06-22T01:54:24Z","timestamp":1782093264000},"page":"600-604","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Determinants of the Maximal Nerve Cross\u2010Sectional Area and Its Role in the Separation of Entrapment and Compression Ulnar Neuropathies at the Elbow"],"prefix":"10.1002","volume":"74","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-2541-0172","authenticated-orcid":false,"given":"Simon","family":"Podnar","sequence":"first","affiliation":[{"name":"Institute of Clinical Neurophysiology, Division of Neurology University Medical Centre Ljubljana Ljubljana Slovenia"},{"name":"The Faculty of Medicine University of Ljubljana Ljubljana Slovenia"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2026,6,21]]},"reference":[{"key":"e_1_2_12_2_1","doi-asserted-by":"publisher","DOI":"10.1097\/WNP.0000000000000233"},{"key":"e_1_2_12_3_1","doi-asserted-by":"publisher","DOI":"10.1136\/practneurol-2020-002645"},{"key":"e_1_2_12_4_1","doi-asserted-by":"publisher","DOI":"10.1097\/WCO.0000000000001183"},{"key":"e_1_2_12_5_1","doi-asserted-by":"publisher","DOI":"10.1002\/mus.21431"},{"key":"e_1_2_12_6_1","doi-asserted-by":"publisher","DOI":"10.1111\/ene.16330"},{"key":"e_1_2_12_7_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.clinph.2020.10.025"},{"key":"e_1_2_12_8_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.clinph.2018.04.753"},{"key":"e_1_2_12_9_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.clinph.2015.05.027"},{"key":"e_1_2_12_10_1","doi-asserted-by":"publisher","DOI":"10.1007\/s10072-006-0719-3"},{"key":"e_1_2_12_11_1","volume-title":"Aids to the Examination of the Peripheral Nervous System","author":"O'Brien M.","year":"2010"},{"key":"e_1_2_12_12_1","unstructured":"Statistics Kingdom \u201cStatistics Online \u201dVolume 2025 2017 https:\/\/www.statskingdom.com\/index.html."},{"key":"e_1_2_12_13_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.clinph.2015.01.023"},{"key":"e_1_2_12_14_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.clinph.2020.02.019"},{"key":"e_1_2_12_15_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.clinph.2016.01.011"},{"key":"e_1_2_12_16_1","doi-asserted-by":"publisher","DOI":"10.1097\/00005072-197703000-00002"},{"key":"e_1_2_12_17_1","first-page":"1958","article-title":"A Comparison of Three Diagnostic Tests for Carpal Tunnel Syndrome Using Latent Class Analysis","volume":"97","author":"Fowler J. R.","year":"2015","journal-title":"Journal of Bone and Joint Surgery. American Volume"},{"key":"e_1_2_12_18_1","doi-asserted-by":"publisher","DOI":"10.1111\/jon.12414"},{"key":"e_1_2_12_19_1","doi-asserted-by":"publisher","DOI":"10.1227\/00006123-200209000-00023"},{"key":"e_1_2_12_20_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.clinph.2014.12.001"},{"key":"e_1_2_12_21_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.neucli.2008.05.002"},{"key":"e_1_2_12_22_1","doi-asserted-by":"publisher","DOI":"10.1002\/mus.27928"}],"container-title":["Muscle & Nerve"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/pdf\/10.1002\/mus.70324","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/full-xml\/10.1002\/mus.70324","content-type":"application\/xml","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/pdf\/10.1002\/mus.70324","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2026,8,13]],"date-time":"2026-08-13T13:51:44Z","timestamp":1786629104000},"score":1,"resource":{"primary":{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/10.1002\/mus.70324"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2026,6,21]]},"references-count":21,"journal-issue":{"issue":"3","published-print":{"date-parts":[[2026,9]]}},"alternative-id":["10.1002\/mus.70324"],"URL":"https:\/\/doi.org\/10.1002\/mus.70324","archive":["Portico"],"relation":{},"ISSN":["0148-639X","1097-4598"],"issn-type":[{"value":"0148-639X","type":"print"},{"value":"1097-4598","type":"electronic"}],"subject":[],"published":{"date-parts":[[2026,6,21]]},"assertion":[{"value":"2025-11-14","order":0,"name":"received","label":"Received","group":{"name":"publication_history","label":"Publication History"}},{"value":"2026-06-15","order":2,"name":"accepted","label":"Accepted","group":{"name":"publication_history","label":"Publication History"}},{"value":"2026-06-21","order":3,"name":"published","label":"Published","group":{"name":"publication_history","label":"Publication History"}}]}}