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The aim of this study was to compare the mid-term clinical and sonographic treatment outcomes after minimally invasive mini-open and arthroscopic reconstruction.<\/jats:p>\n              <\/jats:sec><jats:sec>\n                <jats:title>Materials and methods<\/jats:title>\n                <jats:p>We conducted a retrospective two-center study of patients with acute ACJ dislocation. Surgical treatment was performed using either a mini-open approach (MIOP) or an arthroscopic technique (AR). The primary outcome parameters of this study were the sonographically measured acromioclavicular (ACD) and coracoclavicular distances (CCD). Secondary outcome parameters included the Constant\u2013Murley score (CS), range of motion (ROM), postoperative pain scale (VAS), return to daily routine, return to sports, complications, as well as operative revisions.<\/jats:p>\n              <\/jats:sec><jats:sec>\n                <jats:title>Results<\/jats:title>\n                <jats:p>After a mean follow-up of 29\u00a0months, 30 patients were included in this study with an average age of 41.3\u2009\u00b1\u200914.8\u00a0years (MIOP) and 41.2\u2009\u00b1\u200915.4\u00a0years (AR). The sonographic ACD (MIOP 9.11\u00a0mm vs. AR 8.93\u00a0mm, <jats:italic>p<\/jats:italic>\u2009=\u20090.41) and CCD (MIOP 25.08\u00a0mm vs. AR 24.36\u00a0mm, <jats:italic>p<\/jats:italic>\u2009=\u20090.29) distances showed no statistically significant differences. Furthermore, there was no statistically significant difference when compared to the contralateral side (<jats:italic>p<\/jats:italic>\u2009=\u20090.42). With both techniques, patients achieved excellent clinical outcome parameters without statistically significant differences in CS (MIOP 95 vs. AR 97, <jats:italic>p<\/jats:italic>\u2009=\u20090.11) and VAS (MIOP 1.76 vs. AR 1.14, <jats:italic>p<\/jats:italic>\u2009=\u20090.18). The return to daily activity and return to sport rates did not differ. There were neither complications nor revisions in both groups.<\/jats:p>\n              <\/jats:sec><jats:sec>\n                <jats:title>Conclusion<\/jats:title>\n                <jats:p>Both minimally invasive techniques for acute ACJ stabilization achieved excellent clinical and sonographic outcomes without one technique being statistically superior to the other.<\/jats:p>\n              <\/jats:sec>","DOI":"10.1007\/s00402-023-05110-7","type":"journal-article","created":{"date-parts":[[2023,11,8]],"date-time":"2023-11-08T17:02:09Z","timestamp":1699462929000},"page":"807-814","update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":7,"title":["Mid-term clinical and sonographic outcomes of minimally invasive acromioclavicular joint reconstruction: mini-open versus arthroscopically assisted"],"prefix":"10.1007","volume":"144","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-9317-3338","authenticated-orcid":false,"given":"A.","family":"Behrens","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"P.","family":"Behrendt","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"M. 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PB was a recipient of a fellowship of the German Knee Society sponsored by Arthrex Inc.","order":2,"name":"Ethics","group":{"name":"EthicsHeading","label":"Conflict of interest"}},{"value":"The study was conducted according to the guidelines of the Declaration of Helsinki and approved by the institutional Ethics Committee of the University of Hamburg (D418\/16).","order":3,"name":"Ethics","group":{"name":"EthicsHeading","label":"Ethical approval"}},{"value":"Informed consent was obtained of each study participant prior to inclusion.","order":4,"name":"Ethics","group":{"name":"EthicsHeading","label":"Informed consent"}}]}}