{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,24]],"date-time":"2026-09-24T02:12:56Z","timestamp":1790215976642,"version":"4.1.0"},"reference-count":49,"publisher":"Wiley","issue":"10","license":[{"start":{"date-parts":[[2022,3,2]],"date-time":"2022-03-02T00:00:00Z","timestamp":1646179200000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"},{"start":{"date-parts":[[2022,3,2]],"date-time":"2022-03-02T00:00:00Z","timestamp":1646179200000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/www.springer.com\/tdm"},{"start":{"date-parts":[[2022,3,2]],"date-time":"2022-03-02T00:00:00Z","timestamp":1646179200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/www.springer.com\/tdm"}],"content-domain":{"domain":["link.springer.com"],"crossmark-restriction":false},"short-container-title":["Knee surg. sports traumatol. arthrosc."],"published-print":{"date-parts":[[2022,10]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:sec><jats:title>Purpose<\/jats:title><jats:p>The aim of the present study was to evaluate Achilles tendon length after non\u2010surgical treatment of acute Achilles tendon rupture (aATR), and to evaluate indirect effects of possible persistent elongation on kinematics.<\/jats:p><\/jats:sec><jats:sec><jats:title>Methods<\/jats:title><jats:p>The study was performed as a cross\u2010sectional study based on a population of patients from an RCT regarding non\u2010operative treatment of aATR. Thirty\u2010seven patients out of the 56\u00a0in the original RCT participated with at a follow up of 4\u20135 years after aATR. Primary outcome was Achilles tendon elongation. Additional outcomes were Achilles tendon resting angle (ATRA), calf circumference, passive ankle plantar and dorsiflexion and loading pattern. Foot pressure mapping was performed to measure plantar loading distribution pattern; medial and lateral forefoot peak pressure, heel peak pressure, medial versus lateral loading pattern and timing of heel lift during roll over process.<\/jats:p><jats:p>The healthy leg was used as a control.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>The injured Achilles tendon was significantly elongated by 1.7 (SD 1.6) cm compared to the non\u2010injured leg. A slight delay of 2.6% (SD 6.0) was measured in heel lift in the injured side compared to the non\u2010injured leg. We found no significant difference in forefoot peak pressure, medial and lateral peak pressure as well as heel peak pressure, and no correlation was found between Achilles tendon length and pressure measurements. Finally, dorsiflexion was 1.9\u00b0(SD1.28) larger, ATRA 8.1\u00b0(SD6.7) larger, and calf circumference 1.6\u00a0cm (SD1.1) lower on the injured leg.<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusion<\/jats:title><jats:p>The Achilles tendon was 1.7\u00a0cm elongated 4.5 years after the initial injury and significant changes in ATRA, calf circumference and passive dorsiflexion was present. Except for a slight delay in heel lift\u2010off, kinematics during walking was symmetrical between injured and healthy leg, even with an elongated tendon on the injured leg. The clinical relevance of the Achilles tendon elongation is uncertain.<\/jats:p><\/jats:sec><jats:sec><jats:title>Level of evidence<\/jats:title><jats:p>II.<\/jats:p><\/jats:sec><jats:sec><jats:title>Clinical trials identifier<\/jats:title><jats:p>NCT02760784.<\/jats:p><\/jats:sec>","DOI":"10.1007\/s00167-022-06874-y","type":"journal-article","created":{"date-parts":[[2022,3,2]],"date-time":"2022-03-02T03:05:46Z","timestamp":1646190346000},"page":"3579-3587","update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":7,"title":["1.7\u00a0cm elongated Achilles tendon did not alter walking gait kinematics 4.5 years after non\u2010surgical treatment"],"prefix":"10.1002","volume":"30","clinical-trial-number":[{"clinical-trial-number":"nct02760784","registry":"10.18810\/clinical-trials-gov"}],"author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-1133-7325","authenticated-orcid":false,"given":"Rasmus","family":"Kastoft","sequence":"first","affiliation":[{"name":"<!--<label>1<\/label>--> Department of Orthopedic Surgery Copenhagen University Hospital Hvidovre Denmark"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Kristoffer","family":"Barfod","sequence":"additional","affiliation":[{"name":"<!--<label>1<\/label>--> Department of Orthopedic Surgery Copenhagen University Hospital Hvidovre Denmark"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jesper","family":"Bencke","sequence":"additional","affiliation":[{"name":"<!--<label>2<\/label>--> Laboratory of Human Movement Analysis, Department of Orthopedic Surgery Copenhagen University Hospital Amager Hvidovre Denmark"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Merete B.","family":"Speedtsberg","sequence":"additional","affiliation":[{"name":"<!--<label>2<\/label>--> Laboratory of Human Movement Analysis, Department of Orthopedic Surgery Copenhagen University Hospital Amager Hvidovre Denmark"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Sanja Bay","family":"Hansen","sequence":"additional","affiliation":[{"name":"<!--<label>4<\/label>--> Department of Radiology, Center for Functional and Diagnostic Imaging and Research Copenhagen University Hospital Hvidovre Denmark"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jeannette \u00d8.","family":"Penny","sequence":"additional","affiliation":[{"name":"<!--<label>1<\/label>--> Department of Orthopedic Surgery Copenhagen University Hospital Hvidovre Denmark"},{"name":"<!--<label>3<\/label>--> Department of Orthopaedic Surgery Zealand University Hospital Koege Denmark"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2022,3,2]]},"reference":[{"key":"e_1_2_10_2_2","doi-asserted-by":"publisher","DOI":"10.2106\/JBJS.M.01273"},{"key":"e_1_2_10_3_2","doi-asserted-by":"publisher","DOI":"10.1053\/j.jfas.2014.11.018"},{"key":"e_1_2_10_4_2","doi-asserted-by":"publisher","DOI":"10.1007\/s00167\u2010014\u20103175\u20102"},{"key":"e_1_2_10_5_2","doi-asserted-by":"publisher","DOI":"10.1136\/bjsports\u20102019\u2010100709"},{"key":"e_1_2_10_6_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.asmart.2014.12.002"},{"key":"e_1_2_10_7_2","doi-asserted-by":"publisher","DOI":"10.1016\/S0140\u20106736(19)32942\u20103"},{"key":"e_1_2_10_8_2","doi-asserted-by":"crossref","unstructured":"CramerA HansenMS H\u00f6lmichP BarfodKWNeither heel\u2010rise Height (HRH) nor Achilles tendon resting angle (ATRA) show strong correlations to patient limitations and return to previous activities one year after acute Achilles tendon rupture.https:\/\/doi.org\/10.1016\/j.fas.2021.11.003. 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