{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,8,27]],"date-time":"2026-08-27T18:43:22Z","timestamp":1787856202700,"version":"build-2784847793"},"reference-count":28,"publisher":"SAGE Publications","issue":"10","license":[{"start":{"date-parts":[[2018,6,1]],"date-time":"2018-06-01T00:00:00Z","timestamp":1527811200000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/journals.sagepub.com\/page\/policies\/text-and-data-mining-license"}],"content-domain":{"domain":["journals.sagepub.com"],"crossmark-restriction":true},"short-container-title":["Foot Ankle Int."],"published-print":{"date-parts":[[2018,10]]},"abstract":"<jats:sec>\n                    <jats:title>Background:<\/jats:title>\n                    <jats:p>Most patients who sustain Achilles tendon ruptures (ATRs) have no clinical symptoms prior to ATR. The objective of this study was to define the prevalence of ultrasound-detectable Achilles tendinopathy in asymptomatic patients in an at-risk group.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods:<\/jats:title>\n                    <jats:p>This was a cross-sectional study that collected data from a group of volunteers. All participants were given IPAQ questionnaires to gauge daily activity level, in addition to a demographic form. Participants underwent a physical examination, Silfverskiold test, and an ultrasonographic examination to evaluate for presence of Achilles tendinopathy. Fifty-one volunteers (30 female, 21 male) and 102 Achilles tendons were assessed in this study. The mean age was 27.4\u00b16.3, with an average BMI of 23.5\u00b13.9. Ninety-two percent of participants were categorized as having moderate or high activity levels per the iPAQ questionnaire.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results:<\/jats:title>\n                    <jats:p>Sixteen tendons had at least 1 abnormality: 10 (9.8%) had hypoechoic foci, 9 (8.8%) had calcifications, 1 (0.9%) had increased vascularity, and 1 (0.9%) had a low-grade interstitial tear. Approximately 40% of patients were noted to have a gastroc equinus contracture on Silfverskiold testing. In addition, 14.7% of patients with a gastroc equinus had a hypoechoic focus compared to 8.6% of patients without gastroc equinus ( P = .5003). Logistic regression analysis demonstrated that an increased BMI was a significant risk factor for having an Achilles tendon abnormality on ultrasonography ( P &lt; .01, odds ratio = 1.41).<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusion:<\/jats:title>\n                    <jats:p>In this study, 16% of the Achilles tendons were abnormal and had at least 1 abnormality on ultrasonography. This group of patients was generally young, healthy, and active, thus a group at risk for ATRs. Only 40% of patients had gastrocnemius equinus, although a slightly higher non-significant percentage of those with hypoechoic foci had gastrocnemius equinus. It may be advantageous to prophylactically treat these patients with rehabilitation exercises to minimize the risk of ATR.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Level of Evidence:<\/jats:title>\n                    <jats:p>Level II, comparative prognostic study.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1177\/1071100718778592","type":"journal-article","created":{"date-parts":[[2018,6,1]],"date-time":"2018-06-01T05:06:16Z","timestamp":1527829576000},"page":"1205-1209","update-policy":"https:\/\/doi.org\/10.1177\/sage-journals-update-policy","source":"Crossref","is-referenced-by-count":23,"title":["Prevalence of Asymptomatic Achilles Tendinosis"],"prefix":"10.1177","volume":"39","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-1936-0490","authenticated-orcid":false,"given":"Peter C.","family":"Noback","sequence":"first","affiliation":[{"name":"Trauma Training Center, Department of Orthopaedic Surgery, Columbia University Medical Center, New York, NY, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Christina E.","family":"Freibott","sequence":"additional","affiliation":[{"name":"Trauma Training Center, Department of Orthopaedic Surgery, Columbia University Medical Center, New York, NY, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Direk","family":"Tantigate","sequence":"additional","affiliation":[{"name":"Trauma Training Center, Department of Orthopaedic Surgery, Columbia University Medical Center, New York, NY, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Eugene","family":"Jang","sequence":"additional","affiliation":[{"name":"Trauma Training Center, Department of Orthopaedic Surgery, Columbia University Medical Center, New York, NY, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Justin K.","family":"Greisberg","sequence":"additional","affiliation":[{"name":"Trauma Training Center, Department of Orthopaedic Surgery, Columbia University Medical Center, New York, NY, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Tony","family":"Wong","sequence":"additional","affiliation":[{"name":"Trauma Training Center, Department of Orthopaedic Surgery, Columbia University Medical Center, New York, NY, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"J. Turner","family":"Vosseller","sequence":"additional","affiliation":[{"name":"Trauma Training Center, Department of Orthopaedic Surgery, Columbia University Medical Center, New York, NY, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"179","published-online":{"date-parts":[[2018,6,1]]},"reference":[{"key":"bibr1-1071100718778592","doi-asserted-by":"publisher","DOI":"10.1097\/00003086-199507000-00021"},{"key":"bibr2-1071100718778592","doi-asserted-by":"publisher","DOI":"10.7863\/ultra.15.11077"},{"key":"bibr3-1071100718778592","doi-asserted-by":"publisher","DOI":"10.1136\/bjsports-2012-091303"},{"key":"bibr4-1071100718778592","doi-asserted-by":"publisher","DOI":"10.1177\/0363546515605077"},{"key":"bibr5-1071100718778592","doi-asserted-by":"publisher","DOI":"10.2106\/00004623-200206000-00010"},{"key":"bibr6-1071100718778592","doi-asserted-by":"publisher","DOI":"10.2519\/jospt.2015.5880"},{"key":"bibr7-1071100718778592","doi-asserted-by":"publisher","DOI":"10.2214\/AJR.09.3111"},{"key":"bibr8-1071100718778592","doi-asserted-by":"publisher","DOI":"10.3113\/FAI.2011.0375"},{"key":"bibr9-1071100718778592","doi-asserted-by":"publisher","DOI":"10.1177\/0363546507310073"},{"key":"bibr10-1071100718778592","doi-asserted-by":"publisher","DOI":"10.1136\/bjsm.33.2.129"},{"key":"bibr11-1071100718778592","doi-asserted-by":"publisher","DOI":"10.1111\/j.1600-0838.2011.01400.x"},{"key":"bibr12-1071100718778592","doi-asserted-by":"publisher","DOI":"10.1079\/PHN2005898"},{"key":"bibr13-1071100718778592","doi-asserted-by":"publisher","DOI":"10.1007\/s002560000273"},{"key":"bibr14-1071100718778592","doi-asserted-by":"publisher","DOI":"10.1249\/MSS.0b013e31822b7318"},{"key":"bibr15-1071100718778592","doi-asserted-by":"publisher","DOI":"10.1016\/j.injury.2017.04.007"},{"key":"bibr16-1071100718778592","doi-asserted-by":"publisher","DOI":"10.2106\/00004623-199173100-00009"},{"key":"bibr17-1071100718778592","doi-asserted-by":"publisher","DOI":"10.1016\/S0003-9993(00)90219-3"},{"key":"bibr18-1071100718778592","doi-asserted-by":"publisher","DOI":"10.1093\/milmed\/usy019."},{"key":"bibr19-1071100718778592","doi-asserted-by":"publisher","DOI":"10.1136\/bjsports-2016-096288"},{"key":"bibr20-1071100718778592","doi-asserted-by":"publisher","DOI":"10.1016\/j.injury.2017.08.050"},{"key":"bibr21-1071100718778592","doi-asserted-by":"publisher","DOI":"10.1097\/JSM.0000000000000265"},{"key":"bibr22-1071100718778592","doi-asserted-by":"publisher","DOI":"10.3113\/FAI.2011.0005"},{"key":"bibr23-1071100718778592","doi-asserted-by":"publisher","DOI":"10.1177\/1938640017704942"},{"key":"bibr24-1071100718778592","doi-asserted-by":"publisher","DOI":"10.1177\/1938640014557077"},{"key":"bibr25-1071100718778592","doi-asserted-by":"publisher","DOI":"10.1097\/00005768-200112000-00002"},{"key":"bibr26-1071100718778592","doi-asserted-by":"publisher","DOI":"10.1177\/0363546517713001"},{"key":"bibr27-1071100718778592","doi-asserted-by":"publisher","DOI":"10.1177\/1071100712460223"},{"key":"bibr28-1071100718778592","doi-asserted-by":"publisher","DOI":"10.1016\/S0301-5629(03)00008-5"}],"container-title":["Foot &amp; Ankle International"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/journals.sagepub.com\/doi\/pdf\/10.1177\/1071100718778592","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/journals.sagepub.com\/doi\/full-xml\/10.1177\/1071100718778592","content-type":"application\/xml","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/journals.sagepub.com\/doi\/pdf\/10.1177\/1071100718778592","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2026,4,28]],"date-time":"2026-04-28T21:22:21Z","timestamp":1777411341000},"score":1,"resource":{"primary":{"URL":"https:\/\/journals.sagepub.com\/doi\/10.1177\/1071100718778592"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2018,6,1]]},"references-count":28,"journal-issue":{"issue":"10","published-print":{"date-parts":[[2018,10]]}},"alternative-id":["10.1177\/1071100718778592"],"URL":"https:\/\/doi.org\/10.1177\/1071100718778592","relation":{},"ISSN":["1071-1007","1944-7876"],"issn-type":[{"value":"1071-1007","type":"print"},{"value":"1944-7876","type":"electronic"}],"subject":[],"published":{"date-parts":[[2018,6,1]]}}}