{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,8,11]],"date-time":"2026-08-11T18:38:34Z","timestamp":1786473514979,"version":"build-2736575974"},"reference-count":15,"publisher":"Ovid Technologies (Wolters Kluwer Health)","issue":"3","content-domain":{"domain":["lww.com","ovid.com"],"crossmark-restriction":true},"short-container-title":[],"abstract":"\n Case:<\/jats:title>\n An otherwise healthy 10-year-old boy presented with severe bilateral shoulder dysfunction because of lateral scapular winging. He underwent bilateral modified Eden\u2013Lange tendon transfers, resulting in near-normal restoration of shoulder range of motion at the 1-year follow-up. Intraoperatively, he was found to have bilateral absent trapezial muscles and an anomalous scapuloclavicular muscle spanning from the superomedial scapula to the posterolateral clavicle.<\/jats:p>\n <\/jats:sec>\n \n Conclusion:<\/jats:title>\n This case represents the only known report of bilateral absent trapezius muscles without involvement of other trunk musculature or congenital abnormalities. In addition, the patient exhibited a previously unidentified anomalous muscle.<\/jats:p>\n <\/jats:sec>","DOI":"10.2106\/jbjs.cc.26.00162","type":"journal-article","created":{"date-parts":[[2026,8,11]],"date-time":"2026-08-11T18:00:30Z","timestamp":1786471230000},"update-policy":"https:\/\/doi.org\/10.1097\/lww.0000000000001000","source":"Crossref","is-referenced-by-count":0,"title":["Bilateral Congenitally Absent Trapezius Musculature and Anomalous Scapuloclavicular Accessory Muscle"],"prefix":"10.2106","volume":"16","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-3875-2841","authenticated-orcid":false,"given":"Naomi","family":"Kelley","sequence":"first","affiliation":[{"name":"Department of Orthopedic Surgery, University of New Mexico School of Medicine, Albuquerque, New Mexico"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-6417-4988","authenticated-orcid":false,"given":"William","family":"Curtis","sequence":"additional","affiliation":[{"name":"Department of Orthopedic Surgery, University of New Mexico School of Medicine, Albuquerque, New Mexico"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-6800-1753","authenticated-orcid":false,"given":"Nathan T","family":"Morrell","sequence":"additional","affiliation":[{"name":"Department of Orthopedic Surgery, University of New Mexico School of Medicine, Albuquerque, New Mexico"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"276","published-online":{"date-parts":[[2026,7]]},"reference":[{"issue":"6","key":"bib1-20260811","doi-asserted-by":"crossref","first-page":"547","DOI":"10.1002\/ca.20325","article-title":"Trapezius aplasia: indications for a dual developmental origin of the trapezius muscle","volume":"19","author":"Nooij","year":"2006","journal-title":"Clin Anat."},{"issue":"1","key":"bib2-20260811","first-page":"100825","article-title":"Case report: scapular asymmetry caused by congenital unilateral absence of trapezius [in Spanish]","volume":"58","author":"Ciller Martinez","year":"2024","journal-title":"Rehabilitacion (Madr)."},{"issue":"8","key":"bib3-20260811","doi-asserted-by":"crossref","first-page":"1307","DOI":"10.1016\/j.jse.2015.01.008","article-title":"Outcome of triple-tendon transfer, an Eden-Lange variant, to reconstruct trapezius paralysis","volume":"24","author":"Elhassan","year":"2015","journal-title":"J Shoulder Elbow Surg."},{"issue":"2","key":"bib4-20260811","doi-asserted-by":"crossref","first-page":"306","DOI":"10.1016\/j.jhsa.2015.06.123","article-title":"Scapular and shoulder girdle muscular anatomy: its role in periscapular tendon transfers","volume":"41","author":"Crowe","year":"2016","journal-title":"J Hand Surg Am."},{"issue":"8","key":"bib5-20260811","first-page":"e17222","article-title":"Unilateral absence of sternocleidomastoid and ipsilateral trapezius presenting as congenital torticollis: a case of a rare entity","volume":"13","author":"Chawla","year":"2021","journal-title":"Cureus."},{"issue":"2","key":"bib6-20260811","doi-asserted-by":"crossref","first-page":"243","DOI":"10.1053\/jhsu.2002.31731","article-title":"An anatomic reconstruction of the distal radioulnar ligaments for posttraumatic distal radioulnar joint instability","volume":"27","author":"Adams","year":"2002","journal-title":"J Hand Surg Am."},{"issue":"1","key":"bib7-20260811","doi-asserted-by":"crossref","first-page":"31","DOI":"10.26443\/mjm.v8i1.375","article-title":"Complete unilateral absence of trapezius muscle","volume":"8","author":"Allouh","year":"2020","journal-title":"McGill J Med."},{"issue":"5","key":"bib8-20260811","doi-asserted-by":"crossref","first-page":"462","DOI":"10.1097\/BPB.0b013e32833ce404","article-title":"Congenital unilateral absence of sternocleidomastoid and trapezius muscles: a case report and literature review","volume":"19","author":"Vajramani","year":"2010","journal-title":"J Pediatr Orthop B."},{"issue":"1","key":"bib9-20260811","doi-asserted-by":"crossref","first-page":"133","DOI":"10.2106\/00004623-197759010-00029","article-title":"Bilateral absence of the trapezius and sternal head of the pectoralis major muscles. A case report","volume":"59","author":"Horan","year":"1977","journal-title":"J bone Jt Surg Am."},{"issue":"3","key":"bib10-20260811","doi-asserted-by":"crossref","first-page":"145","DOI":"10.1111\/j.1399-0004.1987.tb03344.x","article-title":"Familial absence of the trapezius muscle with associated shoulder girdle abnormalities","volume":"32","author":"Gross-Kieselstein","year":"1987","journal-title":"Clin Genet."},{"issue":"1","key":"bib11-20260811","first-page":"64","article-title":"Observe case; hereditary bilateral agenesis of the trapezius","volume":"6","author":"Ortiz De Zarate","year":"1957","journal-title":"J de Genetique Humaine."},{"issue":"1","key":"bib12-20260811","doi-asserted-by":"crossref","first-page":"84","DOI":"10.1007\/s00276-025-03595-y","article-title":"Muscles variations with topographical relationship to the suprascapular notch and its potential arthroscopic feasibility","volume":"47","author":"Al-Redouan","year":"2025","journal-title":"Surg Radiol Anat."},{"issue":"1","key":"bib13-20260811","doi-asserted-by":"crossref","first-page":"76","DOI":"10.1007\/s11552-014-9652-8","article-title":"Subclavius posticus: an anomalous muscle in association with suprascapular nerve compression in an athlete","volume":"10","author":"Cogar","year":"2015","journal-title":"Hand (N Y)."},{"issue":"1","key":"bib14-20260811","doi-asserted-by":"crossref","first-page":"147","DOI":"10.1016\/j.jseint.2022.09.014","article-title":"Kinematic analysis of scapulothoracic movements in the shoulder girdle: a whole cadaver study","volume":"7","author":"Peeters","year":"2023","journal-title":"JSES Int."},{"issue":"10","key":"bib15-20260811","doi-asserted-by":"crossref","first-page":"1534","DOI":"10.2106\/00004623-199610000-00011","article-title":"Transfer of the levator scapulae, rhomboid major and rhomboid minor for paralysis of the trapezius","volume":"78","author":"Bigliani","year":"1996","journal-title":"J Bone Jt Surg Am."}],"container-title":["JBJS Case Connector"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.ovid.com\/10.2106\/JBJS.CC.26.00162","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2026,8,11]],"date-time":"2026-08-11T18:00:33Z","timestamp":1786471233000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.ovid.com\/10.2106\/JBJS.CC.26.00162"}},"subtitle":["A Case Report"],"short-title":[],"issued":{"date-parts":[[2026,7]]},"references-count":15,"journal-issue":{"issue":"3","published-online":{"date-parts":[[2026]]}},"URL":"https:\/\/doi.org\/10.2106\/jbjs.cc.26.00162","relation":{},"ISSN":["2160-3251"],"issn-type":[{"value":"2160-3251","type":"electronic"}],"subject":[],"published":{"date-parts":[[2026,7]]}}}