{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,16]],"date-time":"2026-09-16T17:03:48Z","timestamp":1789578228230,"version":"build-2803163510"},"reference-count":49,"publisher":"Wiley","license":[{"start":{"date-parts":[[2026,9,16]],"date-time":"2026-09-16T00:00:00Z","timestamp":1789516800000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"},{"start":{"date-parts":[[2026,9,16]],"date-time":"2026-09-16T00:00:00Z","timestamp":1789516800000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/doi.wiley.com\/10.1002\/tdm_license_1.1"}],"content-domain":{"domain":["arthroscopyjournals.onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Arthroscopy"],"abstract":"<jats:sec>\n                    <jats:title>Purpose<\/jats:title>\n                    <jats:p>To assess predictors for achieving clinically significant outcome (CSO) improvement including minimally clinically important difference, patient acceptable symptom state (PASS), and substantial clinical benefit (SCB), after hip arthroscopy for femoroacetabular impingement syndrome using conservative capsule management with periportal capsulotomy.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods<\/jats:title>\n                    <jats:p>A retrospective analysis of a prospectively collected single\u2010institutional database of primary hip arthroscopy for femoroacetabular impingement syndrome patients using periportal capsulotomy between 2015 and 2023 was conducted. Exclusion criteria included hip osteoarthritis, dysplasia, and insufficient 2\u2010year follow\u2010up. Patients completed patient\u2010reported outcomes including the Hip Disability and Osteoarthritis Outcomes Score (HOOS), 12\u2010Item Short\u2010Form Health Survey (SF\u201012) Physical Component Summary (PCS), and visual analog scale (VAS) surveys at baseline and 2\u2009years postoperatively. CSO attainment was calculated for each patient\u2010reported outcome, and adjusted multivariable regression analysis was conducted to identify factors associated with CSO attainment.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>\n                      Four hundred sixty\u2010three cases were included (age: 34.0\u2009\u00b1\u200910.7\u2009years, body mass index: 24.2\u2009\u00b1\u20093.8, 55.1% women). A total of 94.2%, 76.7%, and 75.4% of patients achieved CSO on PASS, SCB, or minimally clinically important difference for HOOS, SF\u201012 PCS, and VAS, respectively. On multivariate analysis, higher preoperative alpha angle was associated with lower odds of attaining all HOOS and VAS CSOs as well as SF\u201012 PCS SCB and PASS (odds ratio [OR], 0.92\u20100.96;\n                      <jats:italic>P<\/jats:italic>\n                      \u2009&lt;\u2009.05). Higher T\u00f6nnis grade was associated with lower odds of attaining HOOS minimally clinically important difference (OR, 0.35;\n                      <jats:italic>P<\/jats:italic>\n                      \u2009=\u2009.043) as well as VAS SCB (OR, 0.54;\n                      <jats:italic>P<\/jats:italic>\n                      \u2009=\u2009.011) and PASS (OR, 0.54;\n                      <jats:italic>P<\/jats:italic>\n                      \u2009=\u2009.011). Older age was associated with lower odds of attaining SF\u201012 PCS SCB (OR, 0.98;\n                      <jats:italic>P<\/jats:italic>\n                      \u2009=\u2009.024) and PASS (OR, 0.98;\n                      <jats:italic>P<\/jats:italic>\n                      \u2009=\u2009.021). Male sex was associated with higher odds of attaining HOOS SCB (OR, 2.29;\n                      <jats:italic>P<\/jats:italic>\n                      \u2009=\u2009.001) and PASS (OR, 2.40;\n                      <jats:italic>P<\/jats:italic>\n                      \u2009=\u2009.002) as well as SF\u201012 PCS SCB (OR, 1.73;\n                      <jats:italic>P<\/jats:italic>\n                      \u2009=\u2009.016) and PASS (OR, 1.68;\n                      <jats:italic>P<\/jats:italic>\n                      \u2009=\u2009.021).\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusions<\/jats:title>\n                    <jats:p>A high percentage of femoroacetabular impingement syndrome patients undergoing hip arthroscopy with periportal capsulotomy achieved CSO improvement at 2\u2009years with younger age, lower T\u00f6nnis grade, lower alpha angle and male sex shown as positive predictors.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Level of Evidence<\/jats:title>\n                    <jats:p>Level IV, retrospective therapeutic case series.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1002\/arj.70635","type":"journal-article","created":{"date-parts":[[2026,9,16]],"date-time":"2026-09-16T16:26:39Z","timestamp":1789575999000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Young Male Patients With Lower T\u00f6nnis Grade and Alpha Angle Are More Likely to Achieve Clinically Significant Outcome Improvement at 2\u2009Years After Hip Arthroscopy for Femoroacetabular Impingement Syndrome Using Periportal Capsulotomy"],"prefix":"10.1002","author":[{"ORCID":"https:\/\/orcid.org\/0009-0001-3840-1243","authenticated-orcid":false,"given":"Zachary G.","family":"Brumm","sequence":"first","affiliation":[{"name":"University of California \u2010 San Francisco School of Medicine  San Francisco California U.S.A."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Kevin Y.","family":"Chen","sequence":"additional","affiliation":[{"name":"Department of Orthopaedic Surgery University of California \u2010 San Francisco  San Francisco California U.S.A."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-8898-4152","authenticated-orcid":false,"given":"Lejla","family":"Pepic","sequence":"additional","affiliation":[{"name":"University of California \u2010 San Francisco School of Medicine  San Francisco California U.S.A."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Kyla A.","family":"Petrie","sequence":"additional","affiliation":[{"name":"Department of Orthopaedic Surgery University of California \u2010 San Francisco  San Francisco California U.S.A."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Nyaluma N.","family":"Wagala","sequence":"additional","affiliation":[{"name":"Department of Orthopaedic Surgery University of California \u2010 San Francisco  San Francisco California U.S.A."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-4957-9992","authenticated-orcid":false,"given":"Alan L.","family":"Zhang","sequence":"additional","affiliation":[{"name":"Department of Orthopaedic Surgery University of California \u2010 San Francisco  San Francisco California U.S.A."}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2026,9,16]]},"reference":[{"key":"e_1_2_8_2_1","doi-asserted-by":"crossref","first-page":"1169","DOI":"10.1136\/bjsports-2016-096743","article-title":"The warwick agreement on femoroacetabular impingement syndrome (FAI syndrome): An International Consensus statement","volume":"50","author":"Griffin DR","year":"2016","journal-title":"Br J Sports 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