{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,29]],"date-time":"2026-07-29T10:17:57Z","timestamp":1785320277156,"version":"3.55.0"},"reference-count":29,"publisher":"SAGE Publications","issue":"3","license":[{"start":{"date-parts":[[2023,11,16]],"date-time":"2023-11-16T00:00:00Z","timestamp":1700092800000},"content-version":"unspecified","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":["journals.sagepub.com"],"crossmark-restriction":true},"short-container-title":["J Hand Surg Eur Vol"],"published-print":{"date-parts":[[2024,3]]},"abstract":"<jats:p>Fixing palmar ulnar corner fragments of distal radial fractures can be challenging. We described the palmar ulnar corner fragment morphology in a retrospective cohort study of 40 patients who underwent preoperative wrist computed tomography scans. Palmar ulnar corner fractures were categorized based on articular cross-sectional area, sagittal angulation relative to the radius long axis, palmar cortical length, radioulnar width and associated palmar radiocarpal subluxation. Three types emerged: type 1 fragments involved 37% (SD 10) of the radiocarpal articular surface and were extended in the sagittal plane; type 2 fragments involved 28% (SD 10) of the articular surface and had a long palmar cortex, of which 57% had palmar carpal subluxation; and type 3 fragments involved 13% (SD 2) of the articular surface, had a short palmar cortex and all had palmar carpal subluxation. Understanding palmar ulnar corner fragment morphology may guide optimal reduction and fixation strategy and prevent palmar radiocarpal subluxation, especially in type 3 fractures.<\/jats:p>\n                  <jats:p>Level of evidence IV<\/jats:p>","DOI":"10.1177\/17531934231211570","type":"journal-article","created":{"date-parts":[[2023,11,17]],"date-time":"2023-11-17T00:39:41Z","timestamp":1700181581000},"page":"300-309","update-policy":"https:\/\/doi.org\/10.1177\/sage-journals-update-policy","source":"Crossref","is-referenced-by-count":7,"title":["A three-dimensional computed tomography study of the palmar ulnar corner fragment in distal radial fractures"],"prefix":"10.1177","volume":"49","author":[{"given":"James","family":"Hubbard","sequence":"first","affiliation":[{"name":"Division of Hand, Upper Extremity, and Microvascular Surgery, Department of Orthopaedic Surgery, University of California, San Diego (UCSD), La Jolla, CA, 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