{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,11,17]],"date-time":"2025-11-17T17:11:41Z","timestamp":1763399501523,"version":"build-2065373602"},"reference-count":34,"publisher":"Wiley","issue":"2","license":[{"start":{"date-parts":[[2012,12,6]],"date-time":"2012-12-06T00:00:00Z","timestamp":1354752000000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Knee surg. sports traumatol. arthrosc."],"published-print":{"date-parts":[[2014,2]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:sec><jats:title>Purpose<\/jats:title><jats:p>The purpose of this study was to evaluate whether the morphology of the acromion in calcific tendinitis differs from controls without subacromial pathology and matches subacromial impingement.<\/jats:p><\/jats:sec><jats:sec><jats:title>Methods<\/jats:title><jats:p>Digital radiographs of 150 shoulders were evaluated with the open source DICOM\u2010Viewer OsiriX. 50 patients had symptomatic calcific tendinitis of the shoulder, 50 had subacromial impingement without calcifications or rotator cuff tears, 50 with bruised shoulder that were previously asymptomatic served as controls. Acromial shape according to Bigliani et al. acromial tilt (AT) according to Kitay et al. and Aoki et al. acromion index (AI) according to Nyffeler et al. and lateral acromial angle (LAA) according to Banas et al. were measured.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>Both calcific (0.72; <jats:italic>P<\/jats:italic> = 0.001) and impingement groups (0.73; <jats:italic>P<\/jats:italic> = 0.008) were significantly different from controls (0.67) using AI measure, while only the calcific group (79.5\u00b0) was different from controls (84.1\u00b0) using LAA (<jats:italic>P<\/jats:italic> &lt; 0.001), and only the impingement group (32.9\u00b0) was different from controls (29.2\u00b0) using AT (<jats:italic>P<\/jats:italic> &lt; 0.001). An LAA &lt;70\u00b0 only occurred in two patients with calcific tendinitis.<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusion<\/jats:title><jats:p>The hypothesis of this study was that the morphology of the acromion in calcific tendinitis differs from controls without subacromial pathology and matches subacromial impingement was only confirmed for the AI. The AI of shoulders with calcific tendinitis is comparable to that of shoulders with subacromial impingement.<\/jats:p><\/jats:sec><jats:sec><jats:title>Level of evidence<\/jats:title><jats:p>IV.<\/jats:p><\/jats:sec>","DOI":"10.1007\/s00167-012-2327-5","type":"journal-article","created":{"date-parts":[[2012,12,5]],"date-time":"2012-12-05T15:36:58Z","timestamp":1354721818000},"page":"415-421","source":"Crossref","is-referenced-by-count":26,"title":["Acromial morphology in patients with calcific tendinitis of the shoulder"],"prefix":"10.1002","volume":"22","author":[{"given":"Maurice","family":"Balke","sequence":"first","affiliation":[{"name":"Department of Trauma and Orthopedic Surgery Cologne\u2010Merheim Medical Center University of Witten\u2010Herdecke Ostmerheimer Str. 200 51109 Cologne Germany"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Marc","family":"Banerjee","sequence":"additional","affiliation":[{"name":"Department of Trauma and Orthopedic Surgery Cologne\u2010Merheim Medical Center University of Witten\u2010Herdecke Ostmerheimer Str. 200 51109 Cologne Germany"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Tim","family":"Vogler","sequence":"additional","affiliation":[{"name":"Department of Orthopedic Surgery University of Muenster Albert\u2010Schweitzer\u2010Str. 33 48149 M\u00fcnster Germany"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Ralph","family":"Akoto","sequence":"additional","affiliation":[{"name":"Department of Trauma and Orthopedic Surgery Cologne\u2010Merheim Medical Center University of Witten\u2010Herdecke Ostmerheimer Str. 200 51109 Cologne Germany"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Bertil","family":"Bouillon","sequence":"additional","affiliation":[{"name":"Department of Trauma and Orthopedic Surgery Cologne\u2010Merheim Medical Center University of Witten\u2010Herdecke Ostmerheimer Str. 200 51109 Cologne Germany"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Dennis","family":"Liem","sequence":"additional","affiliation":[{"name":"Department of Orthopedic Surgery University of Muenster Albert\u2010Schweitzer\u2010Str. 33 48149 M\u00fcnster Germany"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"311","published-online":{"date-parts":[[2012,12,6]]},"reference":[{"key":"e_1_2_6_2_1","first-page":"228","article-title":"The slope of the acromion and rotator cuff impingement","volume":"10","author":"Aoki M","year":"1986","journal-title":"Orthop Trans"},{"key":"e_1_2_6_3_1","doi-asserted-by":"publisher","DOI":"10.1016\/0749\u20108063(92)90034\u20109"},{"key":"e_1_2_6_4_1","doi-asserted-by":"publisher","DOI":"10.1177\/0363546511430202"},{"key":"e_1_2_6_5_1","doi-asserted-by":"publisher","DOI":"10.1016\/S1058\u20102746(05)80038\u20102"},{"key":"e_1_2_6_6_1","first-page":"228","article-title":"The morphology of the acromion and its relationship to rotator cuff tears","volume":"10","author":"Bigliani LU","year":"1986","journal-title":"Orthop Trans"},{"key":"e_1_2_6_7_1","doi-asserted-by":"publisher","DOI":"10.1016\/S0278-5919(20)30586-X"},{"key":"e_1_2_6_8_1","doi-asserted-by":"publisher","DOI":"10.1001\/jama.1941.02820220019004"},{"key":"e_1_2_6_9_1","first-page":"61","article-title":"Long\u2010term study of shoulder joints afflicted with and treated for calcific tendinitis","volume":"20","author":"Depalma AF","year":"1961","journal-title":"Clin Orthop Relat Res"},{"key":"e_1_2_6_10_1","doi-asserted-by":"publisher","DOI":"10.1302\/0301-620X.77B2.7706348"},{"key":"e_1_2_6_11_1","doi-asserted-by":"publisher","DOI":"10.1148\/radiology.187.2.8475294"},{"key":"e_1_2_6_12_1","doi-asserted-by":"publisher","DOI":"10.1007\/BF00440591"},{"key":"e_1_2_6_13_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.jse.2011.09.028"},{"key":"e_1_2_6_14_1","doi-asserted-by":"publisher","DOI":"10.1067\/mse.2002.127097"},{"key":"e_1_2_6_15_1","doi-asserted-by":"publisher","DOI":"10.1136\/bjsm.2007.036939"},{"key":"e_1_2_6_16_1","doi-asserted-by":"publisher","DOI":"10.1007\/s00402\u2010011\u20101263\u2010z"},{"key":"e_1_2_6_17_1","doi-asserted-by":"publisher","DOI":"10.1007\/s00167\u2010011\u20101563\u20104"},{"key":"e_1_2_6_18_1","doi-asserted-by":"publisher","DOI":"10.1016\/S1058\u20102746(05)80036\u20109"},{"key":"e_1_2_6_19_1","first-page":"49","article-title":"Observations concerning the calcific cuff deposit","volume":"20","author":"Lippmann RK","year":"1961","journal-title":"Clin Orthop Relat Res"},{"key":"e_1_2_6_20_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.jse.2010.10.038"},{"issue":"7","key":"e_1_2_6_21_1","first-page":"532","article-title":"Results of endoscopic treatment of non\u2010broken tendinopathies of the rotator cuff. 2. 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