{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,12,24]],"date-time":"2025-12-24T13:54:51Z","timestamp":1766584491585,"version":"3.48.0"},"reference-count":17,"publisher":"Springer Science and Business Media LLC","issue":"1","license":[{"start":{"date-parts":[[2025,8,18]],"date-time":"2025-08-18T00:00:00Z","timestamp":1755475200000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0"},{"start":{"date-parts":[[2025,8,18]],"date-time":"2025-08-18T00:00:00Z","timestamp":1755475200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0"}],"content-domain":{"domain":["link.springer.com"],"crossmark-restriction":false},"short-container-title":["Skeletal Radiol"],"published-print":{"date-parts":[[2026,1]]},"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:sec>\n                    <jats:title>Objective<\/jats:title>\n                    <jats:p>Distal clavicular osteolysis (DCO) is a commonly encountered cause of shoulder pain resulting from repetitive overuse or antecedent trauma, classically described in young male weightlifters. We propose a variant of DCO in which osteolysis spans the acromioclavicular joint, involving both the anterior acromion and the distal clavicle.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Materials and methods<\/jats:title>\n                    <jats:p>A retrospective PACS query identified patients with DCO on shoulder MRIs performed at\u2009\u2265\u20091.5\u00a0T over a 1-year period. After inclusion\/exclusion criteria were applied, each case was reviewed in a blinded fashion to assess for additional findings of osteolysis involving the acromion. Demographics and patient questionnaire data were recorded and analyzed for statistical significance between groups.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>\n                      A total of 128 cases of DCO were identified in 127 patients (93 males). Mean age was 39.5\u00a0years (SD 11.3\u00a0years). Average symptom duration was 409\u00a0days (13.4\u00a0months). Per questionnaires, 45.3% had a history of antecedent trauma, 62.5% reported lifting weights, 38.3% reported overhead sports, and 32.0% reported repetitive activities. Of the 128 cases, 42 (32.8%) had additional findings of osteolysis involving the acromion. Acromial involvement was seen more commonly in males (\n                      <jats:italic>p<\/jats:italic>\n                      \u2009=\u20090.049). Other than sex, maximum bench press weight was the only statistically significant factor associated with acromial involvement (\n                      <jats:italic>p<\/jats:italic>\n                      \u2009=\u20090.027).\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusion<\/jats:title>\n                    <jats:p>We identified a variant of DCO with osteolysis involving the acromion in addition to the distal clavicle. Other than male sex, maximum bench press weight was the only significant factor associated with acromial involvement, suggesting that increased load bearing may contribute to more extensive osteolysis.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1007\/s00256-025-05014-0","type":"journal-article","created":{"date-parts":[[2025,8,18]],"date-time":"2025-08-18T22:18:32Z","timestamp":1755555512000},"page":"215-222","update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Involvement of the acromion in cases of distal clavicular osteolysis"],"prefix":"10.1007","volume":"55","author":[{"given":"Aishwarya","family":"Gulati","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Blaire","family":"Adler","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-1937-3363","authenticated-orcid":false,"given":"Jeffrey A.","family":"Belair","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"297","published-online":{"date-parts":[[2025,8,18]]},"reference":[{"issue":"5","key":"5014_CR1","doi-asserted-by":"publisher","first-page":"1355","DOI":"10.1148\/rg.2020200039","volume":"40","author":"DV Flores","year":"2020","unstructured":"Flores DV, Goes PK, Gomez CM, Umpire DF, Pathria MN. 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The study was approved by our Institutional Review Board (IRB); a waiver of informed consent was granted by the IRB.","order":2,"name":"Ethics","group":{"name":"EthicsHeading","label":"Ethics approval and consent to participate"}},{"value":"The authors declare no competing interests.","order":3,"name":"Ethics","group":{"name":"EthicsHeading","label":"Conflict of interest"}}]}}