{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,7]],"date-time":"2026-10-07T23:40:14Z","timestamp":1791416414048,"version":"4.3.3"},"reference-count":36,"publisher":"Wiley","issue":"10","license":[{"start":{"date-parts":[[2017,6,14]],"date-time":"2017-06-14T00:00:00Z","timestamp":1497398400000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"},{"start":{"date-parts":[[2017,6,14]],"date-time":"2017-06-14T00:00:00Z","timestamp":1497398400000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/doi.wiley.com\/10.1002\/tdm_license_1.1"},{"start":{"date-parts":[[2017,6,14]],"date-time":"2017-06-14T00:00:00Z","timestamp":1497398400000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/www.elsevier.com\/tdm\/userlicense\/1.0\/"}],"content-domain":{"domain":["clinicalkey.jp","clinicalkey.com","clinicalkey.es","arthroscopyjournal.org","clinicalkey.com.au","clinicalkey.fr","elsevier.com","sciencedirect.com"],"crossmark-restriction":true},"short-container-title":["Arthroscopy"],"published-print":{"date-parts":[[2017,10]]},"abstract":"<jats:sec>\n                    <jats:title>Purpose<\/jats:title>\n                    <jats:p>To compare bipolar bone loss by evaluating the degree of glenoid bone loss, Hill\u2010Sachs lesion size, and glenoid track in adolescents and adults with shoulder dislocations.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods<\/jats:title>\n                    <jats:p>We performed a retrospective review between 2012 and 2016 of surgical and nonsurgical patients with a history of anterior shoulder dislocations (primary or recurrent) who underwent magnetic resonance imaging of the affected shoulder. The exclusion criteria included multidirectional instability, prior surgery, and posterior dislocation. Patients were grouped into 2 groups: adolescents (aged 10\u201019\u00a0years) and adults (aged \u226520\u00a0years). The groups were compared regarding measures of glenoid bone loss (best\u2010fit circle technique) and Hill\u2010Sachs lesion size (medial margin of rotator cuff footprint to medial margin of Hill\u2010Sachs lesion). If the medial margin of a Hill\u2010Sachs lesion was within the glenoid track, it was defined as on track; if it was more medial than the glenoid track, it was defined as off track.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>\n                      We identified 45 adolescents (mean age, 16.1\u00a0years) and 30 adults (mean age, 28.9\u00a0years) with anterior shoulder dislocations. There was no significant difference in percentage of bone loss between adolescents (mean, 8.4%) and adults (mean, 9.9%;\n                      <jats:italic>P<\/jats:italic>\n                      \u00a0= .23). There was no significant difference in Hill\u2010Sachs lesion size between adolescents (mean, 12.7\u00a0mm) and adults (mean, 9.9\u00a0mm;\n                      <jats:italic>P<\/jats:italic>\n                      \u00a0= .12). There were 12 patients with off\u2010track lesions. Off\u2010track lesions were present in 11 of 45 adolescents (24.4%) and 1 of 30 adults (3.3%). Adolescents had an increased risk of having an off\u2010track lesion (odds ratio, 9.38; 95% confidence interval, 1.14\u201077.1). A subgroup analysis identified multiple dislocations as an independent risk factor for an off\u2010track lesion (odds ratio, 4.15; 95% confidence interval, 0.85\u201020.23).\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusions<\/jats:title>\n                    <jats:p>This study shows that adolescence and a history of multiple dislocations are independent risk factors for a greater likelihood of glenoid off\u2010track lesions. The findings support the use of bipolar assessment of shoulder dislocators, especially in adolescents and multiple dislocators.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Level of Evidence<\/jats:title>\n                    <jats:p>Level III, retrospective comparative study.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1016\/j.arthro.2017.04.004","type":"journal-article","created":{"date-parts":[[2017,6,16]],"date-time":"2017-06-16T14:00:26Z","timestamp":1497621626000},"page":"1755-1761","update-policy":"https:\/\/doi.org\/10.1016\/elsevier_cm_policy","source":"Crossref","is-referenced-by-count":38,"title":["Bipolar Bone Loss in Patients With Anterior Shoulder Dislocation: A Comparison of Adolescents Versus Adult Patients"],"prefix":"10.1002","volume":"33","author":[{"given":"Brian C.","family":"Lau","sequence":"first","affiliation":[{"name":"Division of Shoulder and Sports Medicine Surgery Department of Orthopaedic 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Francisco California U.S.A."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Nirav K.","family":"Pandya","sequence":"additional","affiliation":[{"name":"Division of Shoulder and Sports Medicine Surgery Department of Orthopaedic Surgery University of California San Francisco Medical Center San Francisco California U.S.A."},{"name":"University of California San Francisco Medical Center Children's Hospital of Oakland Oakland California 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