{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,5,25]],"date-time":"2025-05-25T04:04:54Z","timestamp":1748145894504,"version":"3.41.0"},"reference-count":25,"publisher":"Springer Science and Business Media LLC","issue":"1","license":[{"start":{"date-parts":[[2025,5,24]],"date-time":"2025-05-24T00:00:00Z","timestamp":1748044800000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0"},{"start":{"date-parts":[[2025,5,24]],"date-time":"2025-05-24T00:00:00Z","timestamp":1748044800000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0"}],"funder":[{"name":"Medizinische Hochschule Hannover (MHH)"}],"content-domain":{"domain":["link.springer.com"],"crossmark-restriction":false},"short-container-title":["J Orthop Traumatol"],"abstract":"<jats:title>Abstract<\/jats:title>\n          <jats:sec>\n            <jats:title>Background<\/jats:title>\n            <jats:p>Gluteus medius tendon tears lead to considerable functional limitations and a high level of suffering in affected patients. In cases where the symptoms are severe, surgical intervention is indicated. A range of techniques are used to repair the tendon, with the primary aim being to achieve the highest possible primary stability in order to minimise the risk of re-rupture. This biomechanical study compares two different refixation techniques in terms of their stability in an ovine model.<\/jats:p>\n          <\/jats:sec>\n          <jats:sec>\n            <jats:title>Material and methods<\/jats:title>\n            <jats:p>The gluteal tendons of sheep hips (<jats:italic>n<\/jats:italic>\u2009=\u200917) were meticulously prepared and detached from the femoral insertion. To reattach these tendons at their original anatomical footprint, either the sole double-row transosseous-equivalent technique (DR) or the DR supplemented by a proximal suture insertion (augmentation) of the tendon (DR\u2009+) was used. Pull-out tests were performed until failure using a uniaxial material testing machine, with a tensile force applied along the physiological tensile direction of the hip abductors. The data obtained (force at failure, linear stiffness) were compared between the groups using the Mann\u2013Whitney <jats:italic>U<\/jats:italic> test.<\/jats:p>\n          <\/jats:sec>\n          <jats:sec>\n            <jats:title>Results<\/jats:title>\n            <jats:p>The augmentation of the proximal tendon portion resulted in a substantial increase in force at failure, exceeding 450% (698\u2009\u00b1\u200980.3 N DR\u2009+\u2009compared with 155.9\u2009\u00b1\u200953.9 N DR technique). In addition, augmented tendons exhibited a notable enhancement in stiffness, with an average increase of 31.3\u2009\u00b1\u200915\u00a0N\/mm in DR\u2009+\u2009compared with 12.4\u2009\u00b1\u20094.8\u00a0N\/mm in DR. Furthermore, the DR\u2009+\u2009method resulted in a substantial reduction in the incidence of slippage of the tendon fibres out of the sutures and tendon bundles when compared with the DR suture.<\/jats:p>\n          <\/jats:sec>\n          <jats:sec>\n            <jats:title>Conclusions<\/jats:title>\n            <jats:p>The clinical problem of suture knots becoming loose within the tendon stump, leading to the failure of the tendon sutures, could be mitigated by additional augmentation, resulting in a substantial increase in ultimate load at failure. The benefits of the double-row transosseous-equivalent technique, which facilitates the pressing of the tendon stump against the footprint, are maintained.<\/jats:p>\n            <jats:p>\n              <jats:italic>Level of Evidence<\/jats:italic> Level of Evidence 5<\/jats:p>\n          <\/jats:sec>","DOI":"10.1186\/s10195-025-00850-1","type":"journal-article","created":{"date-parts":[[2025,5,24]],"date-time":"2025-05-24T17:19:19Z","timestamp":1748107159000},"update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["A novel augmentation technique for the repair of full thickness gluteal tendon tears: a biomechanical analysis in an ovine model"],"prefix":"10.1186","volume":"26","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-1755-2667","authenticated-orcid":false,"given":"Alexander","family":"Derksen","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Zarife","family":"Balli","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Henning","family":"Windhagen","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Dennis","family":"Nebel","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Janin","family":"Reifenrath","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"297","published-online":{"date-parts":[[2025,5,24]]},"reference":[{"issue":"8","key":"850_CR1","doi-asserted-by":"publisher","first-page":"2408","DOI":"10.1007\/s00167-020-06354-1","volume":"29","author":"KH Sunil Kumar","year":"2021","unstructured":"Sunil Kumar KH, Rawal J, Nakano N, Sarmento A, Khanduja V (2021) Pathogenesis and contemporary diagnoses for lateral hip pain: a scoping review. 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Tested material from sheep was collected from sheep after euthanasia, which were implemented in an approved animal study (approval number 33.12-42502-04-19\/3255 of the Lower Saxony State Office for Consumer Protection and Food Safety, LAVES).","order":2,"name":"Ethics","group":{"name":"EthicsHeading","label":"Ethics approval and consent to participate"}},{"value":"All authors have given their consent for the publication of this manuscript.","order":3,"name":"Ethics","group":{"name":"EthicsHeading","label":"Consent for publication"}},{"value":"The authors declare that they have no competing interests.","order":4,"name":"Ethics","group":{"name":"EthicsHeading","label":"Competing interests"}}],"article-number":"33"}}