{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,11,14]],"date-time":"2025-11-14T03:57:57Z","timestamp":1763092677033,"version":"3.44.0"},"reference-count":19,"publisher":"BMJ","issue":"1","content-domain":{"domain":["bmj.com"],"crossmark-restriction":true},"short-container-title":["BMJ Case Rep"],"accepted":{"date-parts":[[2021,1,7]]},"published-print":{"date-parts":[[2021,1]]},"abstract":"<jats:p>A 13-year-old boy sustained a superior pole patellar sleeve fracture after a blunt trauma of the knee. A medial patellofemoral ligament reconstruction had been performed 4 weeks earlier. The patient underwent surgery to reinsert the quadriceps tendon in the superior pole of the patella using two bone suture anchors. One-year postoperative assessment revealed excellent functional outcomes. Sleeve fractures are easily misdiagnosed, and in our case, clinical examination was essential in order to perform the diagnosis.<\/jats:p>","DOI":"10.1136\/bcr-2020-239364","type":"journal-article","created":{"date-parts":[[2021,1,25]],"date-time":"2021-01-25T11:40:36Z","timestamp":1611574836000},"page":"e239364","update-policy":"https:\/\/doi.org\/10.1136\/crossmarkpolicy","source":"Crossref","is-referenced-by-count":2,"title":["Superior pole patellar sleeve fracture after medial patellofemoral ligament reconstruction"],"prefix":"10.1136","volume":"14","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-6980-8882","authenticated-orcid":false,"given":"Fl\u00e1via Pinto","family":"Moreira","sequence":"first","affiliation":[{"name":"Centro Hospitalar Universit\u00e1rio de S\u00e3o Jo\u00e3o, Porto, Portugal"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Francisca Pinho","family":"Costa","sequence":"additional","affiliation":[{"name":"Centro Hospitalar Universit\u00e1rio 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