{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,4]],"date-time":"2026-10-04T03:28:06Z","timestamp":1791084486674,"version":"4.1.0"},"reference-count":50,"publisher":"Wiley","issue":"2","license":[{"start":{"date-parts":[[2013,1,7]],"date-time":"2013-01-07T00:00:00Z","timestamp":1357516800000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"},{"start":{"date-parts":[[2013,1,7]],"date-time":"2013-01-07T00:00:00Z","timestamp":1357516800000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/doi.wiley.com\/10.1002\/tdm_license_1.1"},{"start":{"date-parts":[[2013,1,7]],"date-time":"2013-01-07T00:00:00Z","timestamp":1357516800000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/www.elsevier.com\/tdm\/userlicense\/1.0\/"},{"start":{"date-parts":[[2013,1,7]],"date-time":"2013-01-07T00:00:00Z","timestamp":1357516800000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/www.elsevier.com\/legal\/tdmrep-license"}],"content-domain":{"domain":["arthroscopyjournal.org","clinicalkey.com","clinicalkey.com.au","clinicalkey.es","clinicalkey.fr","clinicalkey.jp","elsevier.com","sciencedirect.com"],"crossmark-restriction":true},"short-container-title":["Arthroscopy"],"published-print":{"date-parts":[[2013,2]]},"abstract":"<jats:sec>\n                    <jats:title>Purpose<\/jats:title>\n                    <jats:p>The aims of this study were to determine the incidence of postoperative stiffness after rotator cuff repair and to evaluate postoperative stiffness with respect to its risk factors and its influence on outcome.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods<\/jats:title>\n                    <jats:p>We included 288 patients (mean age, 59.5 \u00b1 8.4 years) who underwent surgical repair of full\u2010thickness rotator cuff tears. Postoperative range of motion was measured serially 3 months, 6 months, and at least 1 year (mean, 22.8 \u00b1 13.1 months) after surgery. Simultaneously, functional outcome was evaluated using the pain visual analog scale (VAS) and the American Shoulder and Elbow Surgeons (ASES) score, and cuff healing was confirmed by computed tomography arthrography or ultrasonography at least 1 year after surgery (mean, 13.5 \u00b1 2.7 months). We calculated the serial incidence of postoperative stiffness at each follow\u2010up visit, assessed the risk factors for postoperative stiffness at each period, and then evaluated the correlation of stiffness with cuff healing and functional outcome.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>\n                      The incidence of postoperative stiffness was 18.6% (54\/288) at 3 months, 2.8% (8\/288) at 6 months, and 6.6% (19\/288) at final follow\u2010up. Mean age was higher in the stiffness group at all times (all\n                      <jats:italic>P<\/jats:italic>\n                      &lt; .05). Preoperative stiffness affected postoperative stiffness only at 3 months (\n                      <jats:italic>P<\/jats:italic>\n                      \u00a0= .04). Larger tear size, higher grade of fatty infiltration (FI), and open or mini\u2010open surgery were correlated with stiffness only at final follow\u2010up (all\n                      <jats:italic>P<\/jats:italic>\n                      &lt; .05). More patients with final postoperative stiffness showed retear (17\/19, 89.5%) compared with those without stiffness (49\/269, 18.2%,\n                      <jats:italic>P<\/jats:italic>\n                      &lt; .001), and retear was an independent factor for late postoperative stiffness. Pain VAS was higher in the stiffness group at 3 months and final follow\u2010up (all\n                      <jats:italic>P<\/jats:italic>\n                      &lt; .01), and ASES score was lower in the stiffness group only at final follow\u2010up (\n                      <jats:italic>P<\/jats:italic>\n                      \u00a0= .03).\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusions<\/jats:title>\n                    <jats:p>Old age is an important risk factor for postoperative stiffness throughout the follow\u2010up period. Early postoperative stiffness is affected by preoperative stiffness. However, late postoperative stiffness, especially newly developed stiffness, is closely related to retear and significantly worse functional outcome after surgical repair, even though we could not find the cause\u2013effect relation. When a patient complains about newly developed stiffness in the late postoperative period, retear should be considered.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Level of Evidence<\/jats:title>\n                    <jats:p>Level IV, therapeutic case series.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1016\/j.arthro.2012.08.023","type":"journal-article","created":{"date-parts":[[2013,1,3]],"date-time":"2013-01-03T13:32:42Z","timestamp":1357219962000},"page":"290-300","update-policy":"https:\/\/doi.org\/10.1016\/elsevier_cm_policy","source":"Crossref","is-referenced-by-count":157,"title":["Shoulder Stiffness After Rotator Cuff Repair: Risk Factors and Influence on Outcome"],"prefix":"10.1002","volume":"29","author":[{"given":"Seok Won","family":"Chung","sequence":"first","affiliation":[{"name":"Department of Orthopaedic Surgery Seoul National University College of Medicine Seoul National University Bundang Hospital Seongnam\u2010si Korea"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Cao Ba","family":"Huong","sequence":"additional","affiliation":[{"name":"Department of Orthopaedic Surgery Seoul National University College of Medicine Seoul National University Bundang Hospital Seongnam\u2010si Korea"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Sae Hoon","family":"Kim","sequence":"additional","affiliation":[{"name":"Department of Orthopaedic Surgery Seoul National University College of Medicine Seoul National University Bundang Hospital Seongnam\u2010si Korea"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Joo Han","family":"Oh","sequence":"additional","affiliation":[{"name":"Department of Orthopaedic Surgery Seoul National University College of Medicine Seoul National University Bundang Hospital Seongnam\u2010si 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