{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,16]],"date-time":"2026-07-16T15:17:03Z","timestamp":1784215023513,"version":"3.55.0"},"reference-count":38,"publisher":"SAGE Publications","issue":"1","license":[{"start":{"date-parts":[[2021,6,18]],"date-time":"2021-06-18T00:00:00Z","timestamp":1623974400000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/journals.sagepub.com\/page\/policies\/text-and-data-mining-license"}],"funder":[{"DOI":"10.13039\/100007307","name":"arthrex","doi-asserted-by":"publisher","award":["RDGT7011"],"award-info":[{"award-number":["RDGT7011"]}],"id":[{"id":"10.13039\/100007307","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["journals.sagepub.com"],"crossmark-restriction":true},"short-container-title":["Foot &amp; Ankle Specialist"],"published-print":{"date-parts":[[2022,2]]},"abstract":"<jats:sec>\n                    <jats:title>Background<\/jats:title>\n                    <jats:p>The percutaneous knotless repair technique for Achilles tendon ruptures utilizes a Percutaneous Achilles Repair System (PARS) device for suturing the proximal tendon and 2 suture anchors for fixing the sutures into the calcaneus. Determining the best position of the suture anchors may optimize the strength of this repair.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods<\/jats:title>\n                    <jats:p>Twelve pairs of human ankle cadaveric specimens were randomly assigned to receive suture anchors placed at 45\u00b0, 90\u00b0, or 135\u00b0 from the sagittal plane. The anchors were tensioned according to a protocol representing progressive, postoperative rehabilitation. Load, number of loading cycles, displacement, and mode of failure were recorded.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>With the anchors placed at 45\u00b0, 90\u00b0, and 135\u00b0, the ultimate failure loads were mean 265 \u00b1 64 N, 264 \u00b1 75 N, and 279 \u00b1 40 N, and the total number of loading cycles were mean 459 \u00b1 166, 466 \u00b1 158, and 469 \u00b1 110, respectively. The effect of anchor angle on failure load, number of loading cycles, and displacement was not statistically significant. Visually, the anchors at 45\u00b0 and 90\u00b0 demonstrated sutures cutting through the bone.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusion<\/jats:title>\n                    <jats:p>We found no statistically significant difference in pullout strength between the 3 different anchor angles. Sutures cutting through the bone may be a concern with acute anchor angles. This suggests that a 135\u00b0 anchor angle may result in a lower risk of tendon elongation with the percutaneous knotless repair technique.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Levels of Evidence<\/jats:title>\n                    <jats:p>Cadaveric laboratory study<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1177\/19386400211009360","type":"journal-article","created":{"date-parts":[[2021,6,18]],"date-time":"2021-06-18T07:38:18Z","timestamp":1624001898000},"page":"67-75","update-policy":"https:\/\/doi.org\/10.1177\/sage-journals-update-policy","source":"Crossref","is-referenced-by-count":2,"title":["Biomechanical Evaluation of Achilles Tendon Midsubstance Repair: The Effects of Anchor Angle and Position"],"prefix":"10.1177","volume":"15","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-8410-7718","authenticated-orcid":false,"given":"Ingrid K.","family":"Stake","sequence":"first","affiliation":[{"name":"Steadman Philippon Research Institute, Vail, Colorado"},{"name":"Department of Orthopedic Surgery, \u00d8stfold Hospital Trust, Gr\u00e5lum, Norway"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jon W.","family":"Miles","sequence":"additional","affiliation":[{"name":"Steadman Philippon Research Institute, Vail, Colorado"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-0048-8897","authenticated-orcid":false,"given":"Brenton W.","family":"Douglass","sequence":"additional","affiliation":[{"name":"Steadman Philippon Research Institute, Vail, Colorado"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Grant J.","family":"Dornan","sequence":"additional","affiliation":[{"name":"Steadman Philippon Research Institute, Vail, Colorado"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-9831-7484","authenticated-orcid":false,"given":"Thomas O.","family":"Clanton","sequence":"additional","affiliation":[{"name":"Steadman Philippon Research Institute, Vail, Colorado"},{"name":"The Steadman Clinic, Vail, Colorado"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"179","published-online":{"date-parts":[[2021,6,18]]},"reference":[{"key":"bibr1-19386400211009360","doi-asserted-by":"publisher","DOI":"10.1016\/j.injury.2008.06.021"},{"key":"bibr2-19386400211009360","doi-asserted-by":"publisher","DOI":"10.1111\/sms.12253"},{"key":"bibr3-19386400211009360","doi-asserted-by":"publisher","DOI":"10.1177\/0363546514540599"},{"key":"bibr4-19386400211009360","doi-asserted-by":"publisher","DOI":"10.5435\/JAAOS-D-15-00187"},{"key":"bibr5-19386400211009360","doi-asserted-by":"publisher","DOI":"10.2106\/JBJS.K.00917"},{"key":"bibr6-19386400211009360","doi-asserted-by":"publisher","DOI":"10.1136\/bmj.k5120"},{"key":"bibr7-19386400211009360","doi-asserted-by":"publisher","DOI":"10.2106\/JBJS.I.01401"},{"key":"bibr8-19386400211009360","doi-asserted-by":"publisher","DOI":"10.1177\/0363546510376052"},{"key":"bibr9-19386400211009360","doi-asserted-by":"publisher","DOI":"10.1177\/0363546513503282"},{"key":"bibr10-19386400211009360","doi-asserted-by":"publisher","DOI":"10.1177\/0363546516651060"},{"key":"bibr11-19386400211009360","doi-asserted-by":"publisher","DOI":"10.1177\/0363546517737055"},{"key":"bibr12-19386400211009360","doi-asserted-by":"publisher","DOI":"10.2106\/JBJS.17.01364"},{"key":"bibr13-19386400211009360","doi-asserted-by":"publisher","DOI":"10.1177\/0363546508328595"},{"key":"bibr14-19386400211009360","doi-asserted-by":"publisher","DOI":"10.1177\/0363546515587082"},{"key":"bibr15-19386400211009360","doi-asserted-by":"publisher","DOI":"10.1177\/1071100714524550"},{"key":"bibr16-19386400211009360","doi-asserted-by":"publisher","DOI":"10.1053\/j.jfas.2016.10.012"},{"key":"bibr17-19386400211009360","first-page":"2","author":"Dekker RG","year":"2017","journal-title":"Foot Ankle Orthop"},{"key":"bibr18-19386400211009360","doi-asserted-by":"publisher","DOI":"10.1177\/1071100719879659"},{"key":"bibr19-19386400211009360","doi-asserted-by":"publisher","DOI":"10.2106\/JBJS.G.01089"},{"key":"bibr20-19386400211009360","doi-asserted-by":"publisher","DOI":"10.1177\/1071100716653373"},{"key":"bibr21-19386400211009360","doi-asserted-by":"publisher","DOI":"10.1016\/j.arthro.2008.12.021"},{"key":"bibr22-19386400211009360","doi-asserted-by":"publisher","DOI":"10.1016\/j.arthro.2014.07.010"},{"key":"bibr23-19386400211009360","doi-asserted-by":"publisher","DOI":"10.1016\/j.jor.2018.08.008"},{"key":"bibr24-19386400211009360","unstructured":"Mandal BN. ibd: incomplete block designs. 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