{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,2,3]],"date-time":"2026-02-03T17:16:19Z","timestamp":1770138979727,"version":"3.49.0"},"reference-count":13,"publisher":"BMJ","issue":"8","content-domain":{"domain":["bmj.com"],"crossmark-restriction":true},"short-container-title":["BMJ Case Rep"],"accepted":{"date-parts":[[2019,6,19]]},"published-print":{"date-parts":[[2019,8]]},"abstract":"<jats:p>Capitellum fractures represent 1% of elbow fractures. A coronal shear fracture which involves the trochlea is classified as a type IV McKee fracture. The combination of its rarity in the paediatric population as well as its unique appearance on X-ray make diagnosis of this fracture a challenge. We present the case of a 14-year-old boy who sustained this fracture falling from his bike. It was diagnosed from the double arc sign on X-ray. In addition, a CT scan was obtained to aid preoperative planning. It was treated by open reduction and fixation with two headless compression screws. Follow-up at 6 months showed no avascular necrosis. The patient could achieve full extension, while flexion was reduced only by 5\u00b0. Final follow-up was conducted at 15 months. Anatomic reduction and stable internal fixation are essential for a good outcome in these uncommon paediatric fractures.<\/jats:p>","DOI":"10.1136\/bcr-2019-229957","type":"journal-article","created":{"date-parts":[[2019,8,5]],"date-time":"2019-08-05T06:15:17Z","timestamp":1564985717000},"page":"e229957","update-policy":"https:\/\/doi.org\/10.1136\/crossmarkpolicy","source":"Crossref","is-referenced-by-count":5,"title":["Type IV capitellum fractures in children"],"prefix":"10.1136","volume":"12","author":[{"given":"Yvonne-Mary","family":"Papamerkouriou","sequence":"first","affiliation":[{"name":"Athens General Children\u2019s Hospital \u201cPan. & Aglaia Kyriakou\u201d, Athens, Attica, Greece"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Pantelis","family":"Tsoumpos","sequence":"additional","affiliation":[{"name":"Karamandaneio Children\u2019s Hospital, Patras, Greece"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"George","family":"Tagaris","sequence":"additional","affiliation":[{"name":"Karamandaneio Children\u2019s Hospital, Patras, Greece"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"George","family":"Christodoulou","sequence":"additional","affiliation":[{"name":"Karamandaneio Children\u2019s Hospital, Patras, Greece"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"239","published-online":{"date-parts":[[2019,8,4]]},"reference":[{"key":"2025082707162427000_12.8.e229957.1","first-page":"484","article-title":"Fracture of the capitellum","volume":"48","author":"Marion","year":"1962","journal-title":"Rev Chir Orthop"},{"key":"2025082707162427000_12.8.e229957.2","doi-asserted-by":"crossref","first-page":"49","DOI":"10.2106\/00004623-199601000-00007","article-title":"Coronal shear fractures of the distal end of the humerus*","volume":"78","author":"McKee","year":"1996","journal-title":"The 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