{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,27]],"date-time":"2026-07-27T19:38:53Z","timestamp":1785181133782,"version":"3.55.0"},"reference-count":39,"publisher":"SAGE Publications","issue":"9","license":[{"start":{"date-parts":[[2019,6,24]],"date-time":"2019-06-24T00:00:00Z","timestamp":1561334400000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/journals.sagepub.com\/page\/policies\/text-and-data-mining-license"}],"content-domain":{"domain":["journals.sagepub.com"],"crossmark-restriction":true},"short-container-title":["Am J Sports Med"],"published-print":{"date-parts":[[2019,7]]},"abstract":"<jats:sec>\n                    <jats:title>Background:<\/jats:title>\n                    <jats:p>The acetabular labrum plays important roles in proprioception, nociception, synovial fluid seal effect, and static and dynamic joint stability and as a shock absorber. Clinical and radiographic risk factors for unsalvageable labral tear in femoroacetabular impingement (FAI) are not well established.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Purpose:<\/jats:title>\n                    <jats:p>To identify predictors of unsalvageable labral tear during initial hip arthroscopic management of FAI.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Study Design:<\/jats:title>\n                    <jats:p>Case-control study; Level of evidence, 3.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods:<\/jats:title>\n                    <jats:p>Patients were included who underwent primary hip arthroscopic treatment for FAI between March 2009 and March 2014. Patients were excluded who had &lt;2-year follow-up, underwent bilateral surgery, or had a history of surgery, osteoarthritis (T\u00f6nnis grade 2 or 3), and other diagnoses, including lateral center-edge angle &lt;25\u00b0 diagnosed as developmental hip dysplasia. Patients were divided into 2 groups according to their labral condition: reconstruction and refixation. Unsalvageable labral tear was defined as any irreparable labral tear, including severe degenerative tear, frayed labrum, labral ossification, flattened labrum, and failed prior repair during surgery. Univariate and multivariate analyses identified risk factors for segmental labral reconstruction. Patient-reported outcome scores and postoperative revision rates were also assessed.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results:<\/jats:title>\n                    <jats:p>\n                      Twenty-five hips (18 male, 7 female) and 126 hips (65 male, 61 female) were included in the reconstruction and refixation groups, respectively. The mean \u00b1 SD ages were 52.6 \u00b1 15.0 and 36.5 \u00b1 16.1 years in the reconstruction and refixation groups, respectively. In the reconstruction group, the mean modified Harris Hip Score significantly improved from 67.3 \u00b1 14.9 preoperatively to 95.0 \u00b1 8.1 at final follow-up ( P &lt; .001), and the mean Nonarthritic Hip Score improved from 63.0 \u00b1 18.3 preoperatively to 89.5 \u00b1 10.1 at final follow-up ( P &lt; .001). In the refixation group, the mean modified Harris Hip Score significantly improved from 69.2 \u00b1 18.6 preoperatively to 93.0 \u00b1 11.2 at final follow-up ( P &lt; .001), and the mean Nonarthritic Hip Score improved from 60.7 \u00b1 18.8 preoperatively to 88.6 \u00b1 15.0 at final follow-up ( P &lt; .001). No significant difference was noted in patient-reported outcome scores and revision hip arthroscopy rates. The rate of conversion of total hip arthroplasty was higher in the reconstruction group than in the refixation group. Risk factors for unsalvageable labral tear were age \u226545 years (odds ratio [OR], 8.83; P &lt; .007), body mass index \u226523.1 kg\/m\n                      <jats:sup>2<\/jats:sup>\n                      (OR, 13.05; P &lt; .001), and vertical center anterior angle \u226536\u00b0 (OR, 19.03; P &lt; .001). Furthermore, in this study, unsalvageable labral tears were present in cases with at least 2 of the 3 risk factors.\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusion:<\/jats:title>\n                    <jats:p>\n                      Age \u226545 years, body mass index \u226523.1 kg\/m\n                      <jats:sup>2<\/jats:sup>\n                      , and vertical center anterior angle \u226536\u00b0 are risk factors for unsalvageable labral tear at initial hip arthroscopic surgery for patients with FAI.\n                    <\/jats:p>\n                  <\/jats:sec>","DOI":"10.1177\/0363546519856018","type":"journal-article","created":{"date-parts":[[2019,6,25]],"date-time":"2019-06-25T08:54:27Z","timestamp":1561452867000},"page":"2029-2037","update-policy":"https:\/\/doi.org\/10.1177\/sage-journals-update-policy","source":"Crossref","is-referenced-by-count":40,"title":["Clinical and Radiographic Predictors for Unsalvageable Labral Tear at the Time of Initial Hip Arthroscopic Management for Femoroacetabular Impingement"],"prefix":"10.1177","volume":"47","author":[{"given":"Hirotaka","family":"Nakashima","sequence":"first","affiliation":[{"name":"Wakamatsu Hospital for the University of Occupational and Environmental Health, Kitakyushu, Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Manabu","family":"Tsukamoto","sequence":"additional","affiliation":[{"name":"Department of Orthopaedic Surgery, School of Medicine, University of Occupational and Environmental Health, Yahatanishi-ku, Kitakyushu, Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yasuo","family":"Ohnishi","sequence":"additional","affiliation":[{"name":"Wakamatsu Hospital for the University of Occupational and Environmental Health, Kitakyushu, 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