{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,5,6]],"date-time":"2026-05-06T11:13:40Z","timestamp":1778066020020,"version":"3.51.4"},"reference-count":31,"publisher":"SAGE Publications","issue":"9","license":[{"start":{"date-parts":[[2009,5,29]],"date-time":"2009-05-29T00:00:00Z","timestamp":1243555200000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/journals.sagepub.com\/page\/policies\/text-and-data-mining-license"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Am J Sports Med"],"published-print":{"date-parts":[[2009,9]]},"abstract":"<jats:sec>\n                    <jats:title>Background<\/jats:title>\n                    <jats:p>Rotator cuff tears are common and not well-understood shoulder problems. Structural and mechanical inhomogeneity of the supraspinatus tendon complicates accurate prediction of risk of tear propagation and may affect appropriate clinical treatment.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Hypothesis<\/jats:title>\n                    <jats:p>We propose that interactions between the supraspinatus and infraspinatus tendons are critical to load bearing at the glenohumeral joint and warrant investigation.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Study Design<\/jats:title>\n                    <jats:p>Controlled laboratory study.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods<\/jats:title>\n                    <jats:p>Principal strains in the infraspinatus tendon of cadaveric human shoulders were evaluated with increasing anterior full-thickness supraspinatus tendon tear sizes and loading to evaluate whether a mechanical interaction between the supraspinatus and infraspinatus tendons exists. A constant nominal load was attached to the infraspinatus throughout all experimental conditions.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>Increasing supraspinatus tendon tear width from intact and 33% to 66% and increasing supraspinatus tendon load caused an increase in maximum and a decrease in minimum principal strain in the infraspinatus tendon. Increasing the supraspinatus tendon tear size from intact to 33% of the width had no significant effect on infraspinatus tendon strain.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusion<\/jats:title>\n                    <jats:p>Supraspinatus and infraspinatus tendons mechanically interact. The observed significant increase in maximum and decrease in minimum principal strain was concurrent in both the infraspinatus and supraspinatus tendons.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Clinical Relevance<\/jats:title>\n                    <jats:p>Changes in infraspinatus tendon strain associated with increases in supraspinatus tendon tear size and loading may shield a torn supraspinatus tendon from further injury or may have an effect on the load-bearing capacity of the infraspinatus tendon. Results also imply that the effect of a small tear that does not compromise the confluent region between the supraspinatus and infraspinatus tendon may be localized, eliminating its effect on infraspinatus tendon strain.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1177\/0363546509334222","type":"journal-article","created":{"date-parts":[[2009,5,29]],"date-time":"2009-05-29T21:41:52Z","timestamp":1243633312000},"page":"1831-1839","source":"Crossref","is-referenced-by-count":41,"title":["Interaction between the Supraspinatus and Infraspinatus Tendons: Effect of Anterior Supraspinatus Tendon Full-Thickness Tears on Infraspinatus Tendon Strain"],"prefix":"10.1177","volume":"37","author":[{"given":"Nelly","family":"Andarawis-Puri","sequence":"first","affiliation":[{"name":"McKay Orthopaedic Research Laboratory, University of Pennsylvania, Philadelphia, Pennsylvania"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Eric T.","family":"Ricchetti","sequence":"additional","affiliation":[{"name":"McKay Orthopaedic Research Laboratory, University of Pennsylvania, Philadelphia, Pennsylvania"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Louis J.","family":"Soslowsky","sequence":"additional","affiliation":[{"name":"McKay Orthopaedic Research Laboratory, University of Pennsylvania, Philadelphia, Pennsylvania"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"179","published-online":{"date-parts":[[2009,5,29]]},"reference":[{"key":"bibr1-0363546509334222","doi-asserted-by":"publisher","DOI":"10.1016\/S1058-2746(03)00182-4"},{"key":"bibr2-0363546509334222","doi-asserted-by":"publisher","DOI":"10.1097\/00003086-198305000-00003"},{"key":"bibr3-0363546509334222","doi-asserted-by":"publisher","DOI":"10.1067\/mse.2002.126767"},{"key":"bibr4-0363546509334222","doi-asserted-by":"publisher","DOI":"10.1016\/S0736-0266(01)00177-2"},{"key":"bibr5-0363546509334222","doi-asserted-by":"publisher","DOI":"10.1115\/1.1449917"},{"key":"bibr6-0363546509334222","doi-asserted-by":"publisher","DOI":"10.1016\/S0030-5898(05)70275-3"},{"key":"bibr7-0363546509334222","doi-asserted-by":"publisher","DOI":"10.2106\/00004623-199274050-00010"},{"key":"bibr8-0363546509334222","doi-asserted-by":"publisher","DOI":"10.1302\/0301-620X.46B2.314"},{"key":"bibr9-0363546509334222","doi-asserted-by":"publisher","DOI":"10.1177\/230949900301100202"},{"key":"bibr10-0363546509334222","doi-asserted-by":"publisher","DOI":"10.1016\/S0030-5898(05)70286-8"},{"key":"bibr11-0363546509334222","doi-asserted-by":"publisher","DOI":"10.1067\/mse.2000.101959"},{"key":"bibr12-0363546509334222","doi-asserted-by":"publisher","DOI":"10.1097\/00003086-199407000-00011"},{"key":"bibr13-0363546509334222","doi-asserted-by":"publisher","DOI":"10.1097\/00003086-199005000-00011"},{"key":"bibr14-0363546509334222","doi-asserted-by":"publisher","DOI":"10.1136\/bjsm.33.6.430"},{"key":"bibr15-0363546509334222","doi-asserted-by":"publisher","DOI":"10.1016\/S0268-0033(99)00095-9"},{"key":"bibr16-0363546509334222","doi-asserted-by":"publisher","DOI":"10.1002\/jor.1100130413"},{"key":"bibr17-0363546509334222","doi-asserted-by":"publisher","DOI":"10.1115\/1.1394197"},{"key":"bibr18-0363546509334222","doi-asserted-by":"publisher","DOI":"10.1016\/j.jse.2005.10.019"},{"key":"bibr19-0363546509334222","doi-asserted-by":"publisher","DOI":"10.1177\/0363546505280213"},{"key":"bibr20-0363546509334222","doi-asserted-by":"publisher","DOI":"10.1016\/S0749-8063(98)70147-1"},{"key":"bibr21-0363546509334222","doi-asserted-by":"publisher","DOI":"10.1016\/j.clinbiomech.2005.12.014"},{"key":"bibr22-0363546509334222","doi-asserted-by":"publisher","DOI":"10.1016\/S0278-5919(20)30083-1"},{"key":"bibr23-0363546509334222","doi-asserted-by":"publisher","DOI":"10.1115\/1.2834890"},{"key":"bibr24-0363546509334222","doi-asserted-by":"publisher","DOI":"10.1067\/mse.2003.7"},{"key":"bibr25-0363546509334222","doi-asserted-by":"publisher","DOI":"10.1016\/j.jse.2005.04.003"},{"key":"bibr26-0363546509334222","doi-asserted-by":"publisher","DOI":"10.1016\/S0030-5898(05)70266-2"},{"key":"bibr27-0363546509334222","doi-asserted-by":"publisher","DOI":"10.1053\/ar.1999.v15.0150121"},{"key":"bibr28-0363546509334222","doi-asserted-by":"publisher","DOI":"10.1002\/jor.1100010104"},{"key":"bibr29-0363546509334222","doi-asserted-by":"publisher","DOI":"10.1067\/mse.2001.113086"},{"key":"bibr30-0363546509334222","doi-asserted-by":"publisher","DOI":"10.1115\/1.1319660"},{"key":"bibr31-0363546509334222","doi-asserted-by":"publisher","DOI":"10.2106\/00004623-200709000-00006"}],"container-title":["The 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