{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,1,16]],"date-time":"2026-01-16T08:45:49Z","timestamp":1768553149928,"version":"3.49.0"},"reference-count":37,"publisher":"Springer Science and Business Media LLC","issue":"7","license":[{"start":{"date-parts":[[2021,1,23]],"date-time":"2021-01-23T00:00:00Z","timestamp":1611360000000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0"},{"start":{"date-parts":[[2021,1,23]],"date-time":"2021-01-23T00:00:00Z","timestamp":1611360000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0"}],"funder":[{"name":"Projekt DEAL"}],"content-domain":{"domain":["link.springer.com"],"crossmark-restriction":false},"short-container-title":["Arch Orthop Trauma Surg"],"published-print":{"date-parts":[[2022,7]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:sec>\n                <jats:title>Introduction<\/jats:title>\n                <jats:p>Various impairments such as soleus atrophy and consecutive functional deficits in end-range plantarflexion have been described in surgical repair of acute Achilles tendon rupture. The aim of this study was to assess the functional performance at midterm following open surgical repair.<\/jats:p>\n              <\/jats:sec><jats:sec>\n                <jats:title>Materials and Methods<\/jats:title>\n                <jats:p>This cross-sectional study includes <jats:italic>n<\/jats:italic>\u2009=\u200952 patients which were tested on average 3.5\u00a0\u00b1\u20091.4\u00a0years postoperatively using three different functional performance tests and patient-reported outcome measures. Two different surgical techniques (anatomical repair\u2009=\u2009AR vs. conventional repair\u2009=\u2009CR) were compared in a subanalysis. The testing included isokinetic strength testing, a novel setup of heel-rise testing using a marker-based 3D motion analysis system and a gait analysis.<\/jats:p>\n              <\/jats:sec><jats:sec>\n                <jats:title>Results<\/jats:title>\n                <jats:p>At an average 3.5\u00a0years post-surgery, there is a persisting deficit in plantarflexion strength of 10.2%. Moreover, analysis of maximum peak torque angle and strength deficits according to the plantarflexion angle revealed that these deficits are not equally distributed across the range of motion. AR results in a significantly smaller deficit at 10\u00b0 of plantarflexion compared to CR (13.9 vs. 29.9%, <jats:italic>p<\/jats:italic>\u2009&lt;\u20090.05). This reflects into the functional performance during different modalities (static vs. dynamic) in this novel method of heel-rise testing.<\/jats:p>\n              <\/jats:sec><jats:sec>\n                <jats:title>Conclusion<\/jats:title>\n                <jats:p>In summary, there are persisting functional deficits at\u2009&gt;\u20093\u00a0years following Achilles tendon repair which range from strength deficits to specific impairments\u00a0of functional performance\u00a0e.g. during heel rise. Anatomical reconstruction is associated with an improved functional performance potentially due to a more symmetric strength during end-range plantarflexion which transfers into a higher satisfaction during athletic activities.<\/jats:p>\n              <\/jats:sec><jats:sec>\n                <jats:title>Level of evidence<\/jats:title>\n                <jats:p>III, retrospective cohort study<\/jats:p>\n              <\/jats:sec>","DOI":"10.1007\/s00402-020-03746-3","type":"journal-article","created":{"date-parts":[[2021,1,23]],"date-time":"2021-01-23T06:03:07Z","timestamp":1611381787000},"page":"1337-1349","update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":10,"title":["Midterm functional performance following open surgical repair of acute Achilles tendon rupture"],"prefix":"10.1007","volume":"142","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-3929-2317","authenticated-orcid":false,"given":"Markus","family":"Wenning","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Marlene","family":"Mauch","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Albrecht","family":"Heitner","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Paul","family":"Streicher","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Ramona","family":"Ritzmann","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Jochen","family":"Paul","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"297","published-online":{"date-parts":[[2021,1,23]]},"reference":[{"key":"3746_CR1","doi-asserted-by":"publisher","first-page":"e133","DOI":"10.1111\/sms.12253","volume":"25","author":"I Lantto","year":"2015","unstructured":"Lantto I, Heikkinen J, Flinkkil\u00e4 T et al (2015) Epidemiology of Achilles tendon ruptures: Increasing incidence over a 33-year period: clinical relevance level IV. 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