{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,5,20]],"date-time":"2026-05-20T10:07:39Z","timestamp":1779271659353,"version":"3.51.4"},"reference-count":33,"publisher":"SAGE Publications","issue":"2","license":[{"start":{"date-parts":[[2026,1,18]],"date-time":"2026-01-18T00:00:00Z","timestamp":1768694400000},"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":["Am J Sports Med"],"published-print":{"date-parts":[[2026,2]]},"abstract":"<jats:sec>\n                    <jats:title>Background:<\/jats:title>\n                    <jats:p>Hip arthroscopy has demonstrated favorable short- and mid-term outcomes for femoroacetabular impingement syndrome (FAIS) in patients with borderline hip dysplasia (BHD). However, long-term outcomes in patients with FAIS and BHD treated with hip arthroscopy remain understudied.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Purpose:<\/jats:title>\n                    <jats:p>To evaluate hip survivorship and patient-reported outcomes (PROs) in patients with FAIS and BHD compared with those without BHD at a minimum 10-year follow-up.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Study Design:<\/jats:title>\n                    <jats:p>Cohort Study; Level of evidence, 4.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods:<\/jats:title>\n                    <jats:p>A retrospective matched-cohort study was conducted on patients undergoing primary hip arthroscopy for FAIS by a single surgeon (2012-2024). BHD was defined as a lateral center-edge angle (LCEA) of 20\u00b0 to 25\u00b0. Patients with BHD were matched 1 to 2 to controls without BHD based on age, sex, body mass index, and preoperative modified Harris Hip Score (mHHS). Radiographic parameters (eg, alpha angle, LCEA) were assessed pre- and postoperatively. PROs\u2014including mHHS, Non-Arthritic Hip Score (NAHS), and hip survivorship (revision arthroscopy, conversion to total hip arthroplasty [THA])\u2014were compared.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results:<\/jats:title>\n                    <jats:p>\n                      The study included 23 patients with BHD (mean age, 33.6 years; 69.6% women) and 46 controls (mean age, 32.7 years; 65.2% women). Both groups showed significant improvements in mHHS and NAHS at 10 years (all\n                      <jats:italic toggle=\"yes\">P<\/jats:italic>\n                      &lt; .001), with no differences in postoperative scores or minimal clinically important difference achievement (BHD group, 91.3% vs control group, 97.5%;\n                      <jats:italic toggle=\"yes\">P<\/jats:italic>\n                      = .55). There were no conversions to THA in the BHD group and 2 in the control group (4.3%;\n                      <jats:italic toggle=\"yes\">P<\/jats:italic>\n                      = .189). Revision arthroscopy rates were 0% in the BHD group and 8.7% in the control group (\n                      <jats:italic toggle=\"yes\">P<\/jats:italic>\n                      = .549). Patients with BHD exhibited significantly greater reductions in alpha angles on 45\u00b0 Dunn views (\u221213\u00b0 vs \u22121.9\u00b0;\n                      <jats:italic toggle=\"yes\">P<\/jats:italic>\n                      = .01).\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusion:<\/jats:title>\n                    <jats:p>At a minimum 10-year follow-up, patients with BHD who underwent hip arthroscopy for FAIS achieved comparable PROs and hip survivorship to those without BHD. These findings support the use of hip arthroscopy as a durable and effective treatment for FAIS in this population.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1177\/03635465251405728","type":"journal-article","created":{"date-parts":[[2026,1,19]],"date-time":"2026-01-19T05:56:42Z","timestamp":1768802202000},"page":"353-362","update-policy":"https:\/\/doi.org\/10.1177\/sage-journals-update-policy","source":"Crossref","is-referenced-by-count":0,"title":["Borderline Hip Dysplasia Not Associated With Significant Differences in Hip Survivorship or Patient-Reported Outcomes After Primary Hip Arthroscopy for Femoroacetabular Impingement Syndrome: A Propensity-Matched Cohort Study With Minimum 10-Year Follow-up"],"prefix":"10.1177","volume":"54","author":[{"given":"Larry","family":"Chen","sequence":"first","affiliation":[{"name":"NYU Langone Orthopedics, New York, New York, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0009-0002-4631-4737","authenticated-orcid":false,"given":"Emily","family":"Berzolla","sequence":"additional","affiliation":[{"name":"NYU Langone Orthopedics, New York, New York, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Bradley","family":"Lezak","sequence":"additional","affiliation":[{"name":"NYU Langone Orthopedics, New York, New York, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Sangmin","family":"Lee","sequence":"additional","affiliation":[{"name":"NYU Langone Orthopedics, New York, New York, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Daniel J","family":"Kaplan","sequence":"additional","affiliation":[{"name":"NYU Langone Orthopedics, New York, New York, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Thomas","family":"Youm","sequence":"additional","affiliation":[{"name":"NYU Langone Orthopedics, 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