{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,5,26]],"date-time":"2026-05-26T11:04:46Z","timestamp":1779793486737,"version":"3.53.1"},"reference-count":22,"publisher":"SAGE Publications","issue":"3","license":[{"start":{"date-parts":[[2026,4,21]],"date-time":"2026-04-21T00:00:00Z","timestamp":1776729600000},"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":["HIP International"],"published-print":{"date-parts":[[2026,5]]},"abstract":"<jats:sec>\n                    <jats:title>Introduction:<\/jats:title>\n                    <jats:p>The purpose of this study was to conduct an analysis of the cross-sectional area (CSA) of hip musculature before and after hip arthroscopy (HA) for femoroacetabular impingement (FAI). The hypothesis was that there will be a significant increase in the CSA of analysed hip muscles that will correlate with increases in PROs following surgery.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods:<\/jats:title>\n                    <jats:p>\n                      This is a single-centre, single-surgeon, retrospective analysis performed between August 2011 and February 2022. All hips that had a preoperative MRI within 1\u2009year of their date of surgery and \u22651 postoperative MRI &gt;2\u2009months after surgery were included. Cross-sectional areas of the gluteus maximus, gluteus medius, gluteus minimus, iliopsoas, pectineus, sartorius, rectus femoris and tensor fascia lata muscles were measured by 1 blinded researcher and results were checked for reliability by a musculoskeletal radiologist. Normally distributed continuous variables between cohorts were compared using the independent samples\n                      <jats:italic toggle=\"yes\">t<\/jats:italic>\n                      -test.\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results:<\/jats:title>\n                    <jats:p>\n                      89 hips met criteria to be included in the analysis. The cohort had an average age of 35.8\u2009\u00b1\u200915.7\u2009years, was 66.3% female, and had an average BMI of 23.3\u2009\u00b1\u20098.1\u2009kg\/m\n                      <jats:sup>2<\/jats:sup>\n                      . The mean time between surgery and postoperative MRI was 14.8\u2009\u00b1\u20098.3\u2009months. There was a significant difference between preoperative and postoperative hip muscle CSA for gluteus maximus (4298.6\u2009\u00b1\u2009883.6\u2009mm\n                      <jats:sup>2<\/jats:sup>\n                      vs. 4384.6\u2009\u00b1\u2009967.6\u2009mm\n                      <jats:sup>2<\/jats:sup>\n                      ,\n                      <jats:italic toggle=\"yes\">p<\/jats:italic>\n                      \u2009&lt;\u20090.01) and gluteus minimus (1037.0\u2009\u00b1\u2009199.2\u2009mm\n                      <jats:sup>2<\/jats:sup>\n                      vs. 1074.9\u2009\u00b1\u2009202.3\u2009mm\n                      <jats:sup>2<\/jats:sup>\n                      ,\n                      <jats:italic toggle=\"yes\">p<\/jats:italic>\n                      \u2009&lt;\u20090.001). A linear regression found that an increase in the change in CSA of the gluteus maximus (\u03b2\u2009=\u20093.237,\n                      <jats:italic toggle=\"yes\">p<\/jats:italic>\n                      \u2009=\u20090.037) significantly predicted an increase in mHHS at 1\u2009year when controlling for time between surgery and post-op MRI.\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusions:<\/jats:title>\n                    <jats:p>Gluteus maximus and minimus muscles demonstrated significantly increased CSA after HA for FAI patients. Change in CSA was positively correlated with PROs for the gluteus maximus at 1-year follow-up. These findings underscore the clinical significance of muscle adaptations following hip arthroscopy for FAI.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1177\/11207000261419797","type":"journal-article","created":{"date-parts":[[2026,4,22]],"date-time":"2026-04-22T06:16:06Z","timestamp":1776838566000},"page":"469-477","update-policy":"https:\/\/doi.org\/10.1177\/sage-journals-update-policy","source":"Crossref","is-referenced-by-count":0,"title":["Increased cross-sectional area of the gluteus maximus after hip arthroscopy for femoroacetabular impingement correlates with patient-reported outcomes"],"prefix":"10.1177","volume":"36","author":[{"given":"Michael R","family":"Moore","sequence":"first","affiliation":[{"name":"Division of Sports Medicine, Department of Orthopedic Surgery, NYU Langone Health, New York, NY, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Brittany","family":"DeClouette","sequence":"additional","affiliation":[{"name":"Division of Sports Medicine, Department of Orthopedic Surgery, NYU Langone Health, New York, NY, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-6324-5748","authenticated-orcid":false,"given":"Larry","family":"Chen","sequence":"additional","affiliation":[{"name":"Division of Sports Medicine, Department of Orthopedic Surgery, NYU Langone Health, New York, NY, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Thomas","family":"Hoffmeister","sequence":"additional","affiliation":[{"name":"Division of Sports Medicine, Department of Orthopedic Surgery, NYU Langone Health, New York, NY, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0009-0008-0074-580X","authenticated-orcid":false,"given":"Garrett L","family":"Ruff","sequence":"additional","affiliation":[{"name":"Division of Sports Medicine, Department of Orthopedic Surgery, NYU Langone Health, New York, NY, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jairo","family":"Triana","sequence":"additional","affiliation":[{"name":"Division of Sports Medicine, Department of Orthopedic Surgery, NYU Langone Health, New York, NY, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Christopher J","family":"Burke","sequence":"additional","affiliation":[{"name":"Division of Musculoskeletal Radiology, Department of Radiology, NYU Langone Health, New York, NY, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Daniel L","family":"Kaplan","sequence":"additional","affiliation":[{"name":"Division of Sports Medicine, Department of Orthopedic Surgery, NYU Langone Health, New York, NY, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Thomas","family":"Youm","sequence":"additional","affiliation":[{"name":"Division of Sports Medicine, Department of Orthopedic Surgery, NYU Langone Health, New York, NY, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"179","published-online":{"date-parts":[[2026,4,21]]},"reference":[{"key":"e_1_3_2_2_2","doi-asserted-by":"publisher","DOI":"10.1177\/0363546519837192"},{"key":"e_1_3_2_3_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.arthro.2021.04.049"},{"key":"e_1_3_2_4_2","doi-asserted-by":"publisher","DOI":"10.3390\/biology11121765"},{"key":"e_1_3_2_5_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.arthro.2020.10.049"},{"key":"e_1_3_2_6_2","doi-asserted-by":"publisher","DOI":"10.3928\/01477447-20200910-01"},{"key":"e_1_3_2_7_2","doi-asserted-by":"publisher","DOI":"10.1298\/ptr.E9884"},{"key":"e_1_3_2_8_2","doi-asserted-by":"publisher","DOI":"10.1007\/s00256-017-2665-y"},{"key":"e_1_3_2_9_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.asmr.2024.100900"},{"key":"e_1_3_2_10_2","doi-asserted-by":"publisher","DOI":"10.1186\/s12891-024-07965-2"},{"key":"e_1_3_2_11_2","doi-asserted-by":"publisher","DOI":"10.1093\/jhps\/hnv002"},{"key":"e_1_3_2_12_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.arthro.2016.02.019"},{"key":"e_1_3_2_13_2","doi-asserted-by":"publisher","DOI":"10.1097\/MOP.0000000000000301"},{"key":"e_1_3_2_14_2","doi-asserted-by":"publisher","DOI":"10.1136\/bjsports-2022-106085"},{"key":"e_1_3_2_15_2","doi-asserted-by":"publisher","DOI":"10.4300\/JGME-D-12-00156.1"},{"key":"e_1_3_2_16_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.asmr.2021.10.024"},{"key":"e_1_3_2_17_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.knee.2023.05.005"},{"key":"e_1_3_2_18_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.arthro.2018.11.053"},{"key":"e_1_3_2_19_2","volume-title":"Anatomy, bony pelvis and lower limb, gluteus maximus muscle","author":"Elzanie A","year":"2025","unstructured":"Elzanie A, Borger J. Anatomy, bony pelvis and lower limb, gluteus maximus muscle. In: StatPearls [Internet]. Treasure Island, FL: StatPearls Publishing, 2025."},{"key":"e_1_3_2_20_2","doi-asserted-by":"publisher","DOI":"10.1097\/PHM.0000000000001677"},{"key":"e_1_3_2_21_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.arth.2015.10.036"},{"key":"e_1_3_2_22_2","doi-asserted-by":"publisher","DOI":"10.1123\/jsr.2016-0088"},{"key":"e_1_3_2_23_2","doi-asserted-by":"publisher","DOI":"10.26603\/ijspt20200856"}],"container-title":["HIP International"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/journals.sagepub.com\/doi\/pdf\/10.1177\/11207000261419797","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/journals.sagepub.com\/doi\/full-xml\/10.1177\/11207000261419797","content-type":"application\/xml","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/journals.sagepub.com\/doi\/pdf\/10.1177\/11207000261419797","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2026,5,26]],"date-time":"2026-05-26T10:43:30Z","timestamp":1779792210000},"score":1,"resource":{"primary":{"URL":"https:\/\/journals.sagepub.com\/doi\/10.1177\/11207000261419797"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2026,4,21]]},"references-count":22,"journal-issue":{"issue":"3","published-print":{"date-parts":[[2026,5]]}},"alternative-id":["10.1177\/11207000261419797"],"URL":"https:\/\/doi.org\/10.1177\/11207000261419797","relation":{},"ISSN":["1120-7000","1724-6067"],"issn-type":[{"value":"1120-7000","type":"print"},{"value":"1724-6067","type":"electronic"}],"subject":[],"published":{"date-parts":[[2026,4,21]]}}}